Climate Change in Kilauea, Hawaii

76+ years of recorded temperature data show Kilauea is warming.

Based on our analysis of 76 years of temperature data near Kilauea, HI, this area shows a warming trend of approximately +0.2°F per decade. 10 of the last 10 years recorded above-average temperatures, and 2019 was the warmest year on record at +1.8°F above the historical baseline.

Key Climate Facts

Rate of Change

+0.3°F

per decade

Warmest Year

2019

+1.8°F anomaly

Recent Warm Years

10 / 10

above-average years

Decade Shift

+2.2°F

2020s vs 1950s

Compared to the National Average

Kilauea is warming at roughly the national average rate.

National: +0.20°F/decade
Kilauea: +0.25°F/decade

Climate Spiral

Each ring represents one year of monthly temperatures. Blue indicates cooler-than-average periods; red indicates warmer. The outward drift over time reveals Kilauea's long-term warming trend.

Temperature anomaly spiral for Kilauea, Hawaii
Climate spiral: monthly temperature anomalies from 76+ years of NOAA records for Kilauea, HI.

Warming Stripes

Each vertical stripe represents one year. The color gradient from blue to red shows how annual temperatures have shifted relative to the historical average.

Warming stripes for Kilauea, Hawaii
Warming stripes: each stripe is one year of average temperature anomaly for Kilauea, HI.

Temperature Trend

Annual temperature anomalies plotted over time with a linear regression trend line. The slope of +0.25°F per decade quantifies the rate of change.

Temperature trend chart for Kilauea, Hawaii
Linear trend: annual temperature anomalies with trend line for Kilauea, HI.

Temperature by Decade

1950s
-1.19°F
1960s
-0.83°F
1970s
+0.23°F
1980s
+0.12°F
1990s
-0.27°F
2000s
+0.29°F
2010s
+0.48°F
2020s
+0.98°F

Average temperature anomaly per decade relative to the historical baseline period.

Anomaly Scale

-2.3°F Colder Normal +2.0°F Warmer

Color bounds are set to the 5th and 95th percentile of anomalies to avoid outlier washout.

Monthly Temperature Records

Complete monthly temperature record for Kilauea, HI. Filter by decade or download as CSV.

Data Sources & Audit

Station
LIHUE WEATHER SERVICE OFFICE AIRPORT 1020.1, HI US
Distance
15.8 mi
Coverage
98.7%
Records
912
Range
1950-01 – 2026-01
Gap-filled
1 from 1 station
Full Data Audit 913 records
YearMonthTempBaselineAnomalySourceGap
1950Jan69.3°F71.8°F-2.5°USC00513982
1950Feb72.3°F71.8°F+0.6°USW00022536
1950Mar71.4°F72.8°F-1.5°USW00022536
1950Apr72.8°F74.0°F-1.2°USW00022536
1950May74.1°F75.5°F-1.5°USW00022536
1950Jun75.6°F77.8°F-2.2°USW00022536
1950Jul77.2°F79.0°F-1.8°USW00022536
1950Aug77.5°F79.6°F-2.1°USW00022536
1950Sep77.9°F79.5°F-1.6°USW00022536
1950Oct77.3°F78.0°F-0.7°USW00022536
1950Nov72.9°F75.7°F-2.8°USW00022536
1950Dec70.3°F73.2°F-2.9°USW00022536
1951Jan70.9°F71.8°F-0.9°USW00022536
1951Feb69.8°F71.8°F-2.0°USW00022536
1951Mar70.9°F72.8°F-2.0°USW00022536
1951Apr73.0°F74.0°F-1.0°USW00022536
1951May75.8°F75.5°F+0.3°USW00022536
1951Jun76.4°F77.8°F-1.4°USW00022536
1951Jul78.6°F79.0°F-0.4°USW00022536
1951Aug78.4°F79.6°F-1.2°USW00022536
1951Sep77.8°F79.5°F-1.7°USW00022536
1951Oct77.6°F78.0°F-0.4°USW00022536
1951Nov75.3°F75.7°F-0.4°USW00022536
1951Dec73.0°F73.2°F-0.3°USW00022536
1952Jan70.4°F71.8°F-1.4°USW00022536
1952Feb71.2°F71.8°F-0.6°USW00022536
1952Mar71.7°F72.8°F-1.2°USW00022536
1952Apr72.1°F74.0°F-1.9°USW00022536
1952May72.2°F75.5°F-3.3°USW00022536
1952Jun75.5°F77.8°F-2.3°USW00022536
1952Jul76.6°F79.0°F-2.5°USW00022536
1952Aug77.9°F79.6°F-1.7°USW00022536
1952Sep77.6°F79.5°F-1.9°USW00022536
1952Oct75.1°F78.0°F-2.9°USW00022536
1952Nov74.5°F75.7°F-1.2°USW00022536
1952Dec72.6°F73.2°F-0.6°USW00022536
1953Jan70.2°F71.8°F-1.6°USW00022536
1953Feb71.6°F71.8°F-0.2°USW00022536
1953Mar71.2°F72.8°F-1.6°USW00022536
1953Apr73.1°F74.0°F-1.0°USW00022536
1953May75.8°F75.5°F+0.3°USW00022536
1953Jun76.6°F77.8°F-1.2°USW00022536
1953Jul77.3°F79.0°F-1.7°USW00022536
1953Aug78.0°F79.6°F-1.6°USW00022536
1953Sep77.9°F79.5°F-1.6°USW00022536
1953Oct76.6°F78.0°F-1.4°USW00022536
1953Nov74.2°F75.7°F-1.5°USW00022536
1953Dec71.5°F73.2°F-1.7°USW00022536
1954Jan69.5°F71.8°F-2.3°USW00022536
1954Feb70.9°F71.8°F-0.8°USW00022536
1954Mar69.5°F72.8°F-3.4°USW00022536
1954Apr72.6°F74.0°F-1.5°USW00022536
1954May72.8°F75.5°F-2.8°USW00022536
1954Jun76.8°F77.8°F-1.0°USW00022536
1954Jul77.0°F79.0°F-2.0°USW00022536
1954Aug78.6°F79.6°F-1.0°USW00022536
1954Sep78.6°F79.5°F-0.9°USW00022536
1954Oct77.1°F78.0°F-0.9°USW00022536
1954Nov75.5°F75.7°F-0.2°USW00022536
1954Dec71.9°F73.2°F-1.4°USW00022536
1955Jan71.7°F71.8°F-0.1°USW00022536
1955Feb70.4°F71.8°F-1.3°USW00022536
1955Mar68.9°F72.8°F-3.9°USW00022536
1955Apr73.1°F74.0°F-0.9°USW00022536
1955May74.7°F75.5°F-0.8°USW00022536
1955Jun75.1°F77.8°F-2.7°USW00022536
1955Jul75.8°F79.0°F-3.2°USW00022536
1955Aug76.5°F79.6°F-3.1°USW00022536
1955Sep76.4°F79.5°F-3.1°USW00022536
1955Oct75.2°F78.0°F-2.8°USW00022536
1955Nov73.3°F75.7°F-2.4°USW00022536
1955Dec72.2°F73.2°F-1.0°USW00022536
1956Jan71.9°F71.8°F+0.1°USW00022536
1956Feb71.4°F71.8°F-0.3°USW00022536
1956Mar72.7°F72.8°F-0.1°USW00022536
1956Apr72.3°F74.0°F-1.7°USW00022536
1956May75.1°F75.5°F-0.4°USW00022536
1956Jun76.9°F77.8°F-0.9°USW00022536
1956Jul77.8°F79.0°F-1.2°USW00022536
1956Aug79.0°F79.6°F-0.7°USW00022536
1956Sep78.5°F79.5°F-0.9°USW00022536
1956Oct77.5°F78.0°F-0.5°USW00022536
1956Nov75.1°F75.7°F-0.6°USW00022536
1956Dec73.3°F73.2°F+0.0°USW00022536
1957Jan71.8°F71.8°F-0.1°USW00022536
1957Feb69.3°F71.8°F-2.5°USW00022536
1957Mar71.0°F72.8°F-1.9°USW00022536
1957Apr72.1°F74.0°F-1.9°USW00022536
1957May75.6°F75.5°F+0.0°USW00022536
1957Jun77.6°F77.8°F-0.2°USW00022536
1957Jul79.1°F79.0°F+0.1°USW00022536
1957Aug78.7°F79.6°F-0.9°USW00022536
1957Sep78.4°F79.5°F-1.1°USW00022536
1957Oct78.0°F78.0°F+0.0°USW00022536
1957Nov76.3°F75.7°F+0.6°USW00022536
1957Dec72.6°F73.2°F-0.6°USW00022536
1958Jan70.2°F71.8°F-1.6°USW00022536
1958Feb70.5°F71.8°F-1.3°USW00022536
1958Mar69.5°F72.8°F-3.3°USW00022536
1958Apr72.2°F74.0°F-1.8°USW00022536
1958May74.8°F75.5°F-0.7°USW00022536
1958Jun77.7°F77.8°F-0.1°USW00022536
1958Jul77.3°F79.0°F-1.7°USW00022536
1958Aug79.0°F79.6°F-0.7°USW00022536
1958Sep79.8°F79.5°F+0.3°USW00022536
1958Oct77.6°F78.0°F-0.4°USW00022536
1958Nov74.1°F75.7°F-1.6°USW00022536
1958Dec70.9°F73.2°F-2.3°USW00022536
1959Jan71.1°F71.8°F-0.8°USW00022536
1959Feb69.9°F71.8°F-1.9°USW00022536
1959Mar74.2°F72.8°F+1.4°USW00022536
1959Apr72.6°F74.0°F-1.4°USW00022536
1959May74.7°F75.5°F-0.9°USW00022536
1959Jun78.7°F77.8°F+0.9°USW00022536
1959Jul79.0°F79.0°F+0.0°USW00022536
1959Aug80.0°F79.6°F+0.4°USW00022536
1959Sep80.6°F79.5°F+1.2°USW00022536
1959Oct77.8°F78.0°F-0.1°USW00022536
1959Nov75.7°F75.7°F+0.0°USW00022536
1959Dec73.4°F73.2°F+0.2°USW00022536
1960Jan71.8°F71.8°F-0.1°USW00022536
1960Feb70.9°F71.8°F-0.9°USW00022536
1960Mar71.0°F72.8°F-1.8°USW00022536
1960Apr73.4°F74.0°F-0.7°USW00022536
1960May76.5°F75.5°F+0.9°USW00022536
1960Jun78.2°F77.8°F+0.4°USW00022536
1960Jul78.8°F79.0°F-0.2°USW00022536
1960Aug80.0°F79.6°F+0.3°USW00022536
1960Sep79.0°F79.5°F-0.5°USW00022536
1960Oct77.8°F78.0°F-0.2°USW00022536
1960Nov76.0°F75.7°F+0.3°USW00022536
1960Dec72.2°F73.2°F-1.0°USW00022536
1961Jan71.3°F71.8°F-0.6°USW00022536
1961Feb73.0°F71.8°F+1.2°USW00022536
1961Mar73.9°F72.8°F+1.0°USW00022536
1961Apr75.0°F74.0°F+1.0°USW00022536
1961May77.4°F75.5°F+1.9°USW00022536
1961Jun77.9°F77.8°F+0.1°USW00022536
1961Jul79.0°F79.0°F+0.0°USW00022536
1961Aug79.7°F79.6°F+0.1°USW00022536
1961Sep78.8°F79.5°F-0.6°USW00022536
1961Oct77.5°F78.0°F-0.5°USW00022536
1961Nov74.5°F75.7°F-1.2°USW00022536
1961Dec73.8°F73.2°F+0.5°USW00022536
1962Jan72.8°F71.8°F+1.0°USW00022536
1962Feb70.4°F71.8°F-1.3°USW00022536
1962Mar71.8°F72.8°F-1.0°USW00022536
1962Apr74.8°F74.0°F+0.8°USW00022536
1962May76.3°F75.5°F+0.8°USW00022536
1962Jun77.6°F77.8°F-0.2°USW00022536
1962Jul79.0°F79.0°F+0.0°USW00022536
1962Aug79.1°F79.6°F-0.5°USW00022536
1962Sep78.9°F79.5°F-0.6°USW00022536
1962Oct75.7°F78.0°F-2.3°USW00022536
1962Nov75.8°F75.7°F+0.1°USW00022536
1962Dec71.4°F73.2°F-1.8°USW00022536
1963Jan71.3°F71.8°F-0.5°USW00022536
1963Feb71.6°F71.8°F-0.1°USW00022536
1963Mar72.8°F72.8°F-0.1°USW00022536
1963Apr74.6°F74.0°F+0.6°USW00022536
1963May75.4°F75.5°F-0.1°USW00022536
1963Jun77.8°F77.8°F+0.0°USW00022536
1963Jul79.0°F79.0°F+0.0°USW00022536
1963Aug80.2°F79.6°F+0.6°USW00022536
1963Sep79.3°F79.5°F-0.2°USW00022536
1963Oct78.6°F78.0°F+0.6°USW00022536
1963Nov76.4°F75.7°F+0.7°USW00022536
1963Dec72.6°F73.2°F-0.6°USW00022536
1964Jan73.7°F71.8°F+1.9°USW00022536
1964Feb72.9°F71.8°F+1.2°USW00022536
1964Mar73.1°F72.8°F+0.3°USW00022536
1964Apr74.6°F74.0°F+0.6°USW00022536
1964May75.7°F75.5°F+0.1°USW00022536
1964Jun77.8°F77.8°F+0.0°USW00022536
1964Jul78.1°F79.0°F-0.9°USW00022536
1964Aug77.1°F79.6°F-2.5°USW00022536
1964Sep77.8°F79.5°F-1.6°USW00022536
1964Oct75.0°F78.0°F-3.0°USW00022536
1964Nov73.3°F75.7°F-2.4°USW00022536
1964Dec73.0°F73.2°F-0.2°USW00022536
1965Jan70.5°F71.8°F-1.3°USW00022536
1965Feb67.4°F71.8°F-4.3°USW00022536
1965Mar68.6°F72.8°F-4.3°USW00022536
1965Apr71.7°F74.0°F-2.4°USW00022536
1965May74.5°F75.5°F-1.1°USW00022536
1965Jun76.5°F77.8°F-1.3°USW00022536
1965Jul77.6°F79.0°F-1.4°USW00022536
1965Aug78.4°F79.6°F-1.2°USW00022536
1965Sep77.3°F79.5°F-2.2°USW00022536
1965Oct74.9°F78.0°F-3.1°USW00022536
1965Nov74.5°F75.7°F-1.2°USW00022536
1965Dec71.1°F73.2°F-2.1°USW00022536
1966Jan69.7°F71.8°F-2.1°USW00022536
1966Feb67.5°F71.8°F-4.2°USW00022536
1966Mar70.3°F72.8°F-2.5°USW00022536
1966Apr69.7°F74.0°F-4.3°USW00022536
1966May74.2°F75.5°F-1.3°USW00022536
1966Jun77.6°F77.8°F-0.2°USW00022536
1966Jul78.1°F79.0°F-0.9°USW00022536
1966Aug78.5°F79.6°F-1.1°USW00022536
1966Sep78.6°F79.5°F-0.9°USW00022536
1966Oct76.9°F78.0°F-1.1°USW00022536
1966Nov74.8°F75.7°F-0.9°USW00022536
1966Dec72.3°F73.2°F-0.9°USW00022536
1967Jan69.5°F71.8°F-2.3°USW00022536
1967Feb71.8°F71.8°F+0.0°USW00022536
1967Mar71.4°F72.8°F-1.5°USW00022536
1967Apr71.9°F74.0°F-2.1°USW00022536
1967May75.8°F75.5°F+0.3°USW00022536
1967Jun77.0°F77.8°F-0.8°USW00022536
1967Jul79.0°F79.0°F+0.0°USW00022536
1967Aug78.7°F79.6°F-0.9°USW00022536
1967Sep78.9°F79.5°F-0.5°USW00022536
1967Oct77.5°F78.0°F-0.5°USW00022536
1967Nov74.9°F75.7°F-0.8°USW00022536
1967Dec69.9°F73.2°F-3.3°USW00022536
1968Jan69.5°F71.8°F-2.3°USW00022536
1968Feb68.9°F71.8°F-2.9°USW00022536
1968Mar70.7°F72.8°F-2.1°USW00022536
1968Apr72.4°F74.0°F-1.6°USW00022536
1968May74.2°F75.5°F-1.3°USW00022536
1968Jun77.8°F77.8°F+0.0°USW00022536
1968Jul78.2°F79.0°F-0.8°USW00022536
1968Aug79.0°F79.6°F-0.6°USW00022536
1968Sep78.6°F79.5°F-0.8°USW00022536
1968Oct76.2°F78.0°F-1.8°USW00022536
1968Nov75.6°F75.7°F-0.1°USW00022536
1968Dec70.7°F73.2°F-2.5°USW00022536
1969Jan65.8°F71.8°F-6.0°USW00022536
1969Feb70.5°F71.8°F-1.3°USW00022536
1969Mar69.9°F72.8°F-3.0°USW00022536
1969Apr72.0°F74.0°F-2.1°USW00022536
1969May75.4°F75.5°F-0.2°USW00022536
1969Jun78.3°F77.8°F+0.5°USW00022536
1969Jul79.4°F79.0°F+0.4°USW00022536
1969Aug79.9°F79.6°F+0.3°USW00022536
1969Sep79.4°F79.5°F+0.0°USW00022536
1969Oct77.0°F78.0°F-1.0°USW00022536
1969Nov75.6°F75.7°F-0.1°USW00022536
1969Dec73.3°F73.2°F+0.1°USW00022536
1970Jan71.6°F71.8°F-0.2°USW00022536
1970Feb71.3°F71.8°F-0.4°USW00022536
1970Mar74.2°F72.8°F+1.4°USW00022536
1970Apr75.5°F74.0°F+1.5°USW00022536
1970May77.2°F75.5°F+1.6°USW00022536
1970Jun78.4°F77.8°F+0.6°USW00022536
1970Jul79.4°F79.0°F+0.4°USW00022536
1970Aug80.8°F79.6°F+1.2°USW00022536
1970Sep79.8°F79.5°F+0.4°USW00022536
1970Oct78.4°F78.0°F+0.4°USW00022536
1970Nov75.4°F75.7°F-0.3°USW00022536
1970Dec75.2°F73.2°F+1.9°USW00022536
1971Jan69.7°F71.8°F-2.2°USW00022536
1971Feb73.8°F71.8°F+2.0°USW00022536
1971Mar73.9°F72.8°F+1.0°USW00022536
1971Apr75.9°F74.0°F+1.9°USW00022536
1971May76.9°F75.5°F+1.4°USW00022536
1971Jun77.9°F77.8°F+0.1°USW00022536
1971Jul79.3°F79.0°F+0.3°USW00022536
1971Aug79.9°F79.6°F+0.3°USW00022536
1971Sep80.0°F79.5°F+0.5°USW00022536
1971Oct78.3°F78.0°F+0.3°USW00022536
1971Nov76.9°F75.7°F+1.2°USW00022536
1971Dec74.5°F73.2°F+1.3°USW00022536
1972Jan70.4°F71.8°F-1.4°USW00022536
1972Feb70.8°F71.8°F-0.9°USW00022536
1972Mar72.4°F72.8°F-0.5°USW00022536
1972Apr74.0°F74.0°F+0.0°USW00022536
1972May76.7°F75.5°F+1.1°USW00022536
1972Jun77.5°F77.8°F-0.3°USW00022536
1972Jul78.4°F79.0°F-0.6°USW00022536
1972Aug79.9°F79.6°F+0.2°USW00022536
1972Sep78.8°F79.5°F-0.7°USW00022536
1972Oct78.2°F78.0°F+0.2°USW00022536
1972Nov76.1°F75.7°F+0.4°USW00022536
1972Dec70.5°F73.2°F-2.7°USW00022536
1973Jan70.9°F71.8°F-0.9°USW00022536
1973Feb71.9°F71.8°F+0.1°USW00022536
1973Mar75.3°F72.8°F+2.5°USW00022536
1973Apr74.6°F74.0°F+0.5°USW00022536
1973May75.3°F75.5°F-0.3°USW00022536
1973Jun77.4°F77.8°F-0.4°USW00022536
1973Jul78.8°F79.0°F-0.2°USW00022536
1973Aug79.2°F79.6°F-0.5°USW00022536
1973Sep78.9°F79.5°F-0.6°USW00022536
1973Oct77.9°F78.0°F-0.1°USW00022536
1973Nov75.5°F75.7°F-0.2°USW00022536
1973Dec72.8°F73.2°F-0.4°USW00022536
1974Jan74.4°F71.8°F+2.6°USW00022536
1974Feb74.5°F71.8°F+2.8°USW00022536
1974Mar73.5°F72.8°F+0.6°USW00022536
1974Apr75.9°F74.0°F+1.9°USW00022536
1974May76.9°F75.5°F+1.4°USW00022536
1974Jun78.5°F77.8°F+0.7°USW00022536
1974Jul79.0°F79.0°F+0.0°USW00022536
1974Aug80.0°F79.6°F+0.4°USW00022536
1974Sep79.9°F79.5°F+0.4°USW00022536
1974Oct79.3°F78.0°F+1.3°USW00022536
1974Nov75.9°F75.7°F+0.2°USW00022536
1974Dec75.9°F73.2°F+2.7°USW00022536
1975Jan73.0°F71.8°F+1.2°USW00022536
1975Feb71.4°F71.8°F-0.3°USW00022536
1975Mar72.6°F72.8°F-0.3°USW00022536
1975Apr74.2°F74.0°F+0.2°USW00022536
1975May75.6°F75.5°F+0.1°USW00022536
1975Jun77.3°F77.8°F-0.5°USW00022536
1975Jul77.6°F79.0°F-1.4°USW00022536
1975Aug78.1°F79.6°F-1.5°USW00022536
1975Sep77.8°F79.5°F-1.7°USW00022536
1975Oct77.7°F78.0°F-0.3°USW00022536
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2003Dec73.2°F73.2°F+0.0°USW00022536
2004Jan71.7°F71.8°F-0.1°USW00022536
2004Feb73.4°F71.8°F+1.6°USW00022536
2004Mar72.2°F72.8°F-0.7°USW00022536
2004Apr73.7°F74.0°F-0.3°USW00022536
2004May76.6°F75.5°F+1.1°USW00022536
2004Jun78.4°F77.8°F+0.5°USW00022536
2004Jul80.1°F79.0°F+1.1°USW00022536
2004Aug79.7°F79.6°F+0.1°USW00022536
2004Sep80.2°F79.5°F+0.8°USW00022536
2004Oct78.4°F78.0°F+0.4°USW00022536
2004Nov75.3°F75.7°F-0.4°USW00022536
2004Dec73.1°F73.2°F-0.1°USW00022536
2005Jan71.4°F71.8°F-0.4°USW00022536
2005Feb72.4°F71.8°F+0.7°USW00022536
2005Mar71.1°F72.8°F-1.7°USW00022536
2005Apr75.4°F74.0°F+1.4°USW00022536
2005May78.0°F75.5°F+2.5°USW00022536
2005Jun79.3°F77.8°F+1.5°USW00022536
2005Jul80.0°F79.0°F+1.0°USW00022536
2005Aug80.0°F79.6°F+0.4°USW00022536
2005Sep80.7°F79.5°F+1.3°USW00022536
2005Oct78.6°F78.0°F+0.6°USW00022536
2005Nov76.0°F75.7°F+0.3°USW00022536
2005Dec74.1°F73.2°F+0.9°USW00022536
2006Jan76.1°F71.8°F+4.3°USW00022536
2006Feb72.2°F71.8°F+0.4°USW00022536
2006Mar72.8°F72.8°F+0.0°USW00022536
2006Apr73.9°F74.0°F-0.1°USW00022536
2006May75.2°F75.5°F-0.3°USW00022536
2006Jun78.3°F77.8°F+0.5°USW00022536
2006Jul79.0°F79.0°F+0.0°USW00022536
2006Aug78.5°F79.6°F-1.1°USW00022536
2006Sep78.8°F79.5°F-0.7°USW00022536
2006Oct77.3°F78.0°F-0.7°USW00022536
2006Nov76.4°F75.7°F+0.7°USW00022536
2006Dec74.0°F73.2°F+0.8°USW00022536
2007Jan74.4°F71.8°F+2.5°USW00022536
2007Feb72.0°F71.8°F+0.2°USW00022536
2007Mar73.7°F72.8°F+0.9°USW00022536
2007Apr74.6°F74.0°F+0.6°USW00022536
2007May77.1°F75.5°F+1.5°USW00022536
2007Jun79.1°F77.8°F+1.3°USW00022536
2007Jul79.6°F79.0°F+0.6°USW00022536
2007Aug80.9°F79.6°F+1.3°USW00022536
2007Sep80.3°F79.5°F+0.8°USW00022536
2007Oct79.0°F78.0°F+1.0°USW00022536
2007Nov76.2°F75.7°F+0.5°USW00022536
2007Dec74.8°F73.2°F+1.6°USW00022536
2008Jan71.4°F71.8°F-0.4°USW00022536
2008Feb73.1°F71.8°F+1.3°USW00022536
2008Mar75.3°F72.8°F+2.5°USW00022536
2008Apr74.2°F74.0°F+0.2°USW00022536
2008May76.3°F75.5°F+0.8°USW00022536
2008Jun77.6°F77.8°F-0.2°USW00022536
2008Jul79.3°F79.0°F+0.2°USW00022536
2008Aug80.7°F79.6°F+1.1°USW00022536
2008Sep78.5°F79.5°F-1.0°USW00022536
2008Oct77.7°F78.0°F-0.3°USW00022536
2008Nov74.1°F75.7°F-1.6°USW00022536
2008Dec72.5°F73.2°F-0.7°USW00022536
2009Jan70.3°F71.8°F-1.5°USW00022536
2009Feb69.7°F71.8°F-2.1°USW00022536
2009Mar69.6°F72.8°F-3.3°USW00022536
2009Apr70.1°F74.0°F-4.0°USW00022536
2009May74.3°F75.5°F-1.3°USW00022536
2009Jun78.4°F77.8°F+0.6°USW00022536
2009Jul79.0°F79.0°F+0.0°USW00022536
2009Aug78.7°F79.6°F-0.9°USW00022536
2009Sep79.0°F79.5°F-0.5°USW00022536
2009Oct78.6°F78.0°F+0.6°USW00022536
2009Nov75.6°F75.7°F-0.1°USW00022536
2009Dec71.2°F73.2°F-2.0°USW00022536
2010Jan71.5°F71.8°F-0.3°USW00022536
2010Feb69.9°F71.8°F-1.9°USW00022536
2010Mar72.2°F72.8°F-0.7°USW00022536
2010Apr73.6°F74.0°F-0.4°USW00022536
2010May76.7°F75.5°F+1.2°USW00022536
2010Jun77.8°F77.8°F+0.0°USW00022536
2010Jul78.4°F79.0°F-0.6°USW00022536
2010Aug78.7°F79.6°F-0.9°USW00022536
2010Sep78.7°F79.5°F-0.8°USW00022536
2010Oct79.2°F78.0°F+1.2°USW00022536
2010Nov74.8°F75.7°F-0.9°USW00022536
2010Dec73.5°F73.2°F+0.3°USW00022536
2011Jan71.8°F71.8°F-0.1°USW00022536
2011Feb71.6°F71.8°F-0.1°USW00022536
2011Mar75.3°F72.8°F+2.4°USW00022536
2011Apr76.2°F74.0°F+2.2°USW00022536
2011May76.1°F75.5°F+0.6°USW00022536
2011Jun77.0°F77.8°F-0.8°USW00022536
2011Jul79.7°F79.0°F+0.7°USW00022536
2011Aug80.1°F79.6°F+0.5°USW00022536
2011Sep79.8°F79.5°F+0.3°USW00022536
2011Oct78.3°F78.0°F+0.3°USW00022536
2011Nov74.9°F75.7°F-0.8°USW00022536
2011Dec74.2°F73.2°F+1.0°USW00022536
2012Jan73.4°F71.8°F+1.6°USW00022536
2012Feb72.7°F71.8°F+0.9°USW00022536
2012Mar72.8°F72.8°F-0.1°USW00022536
2012Apr74.9°F74.0°F+0.9°USW00022536
2012May76.1°F75.5°F+0.6°USW00022536
2012Jun77.7°F77.8°F-0.1°USW00022536
2012Jul77.7°F79.0°F-1.3°USW00022536
2012Aug79.1°F79.6°F-0.5°USW00022536
2012Sep78.7°F79.5°F-0.8°USW00022536
2012Oct78.4°F78.0°F+0.4°USW00022536
2012Nov76.6°F75.7°F+0.9°USW00022536
2012Dec74.3°F73.2°F+1.1°USW00022536
2013Jan70.9°F71.8°F-0.9°USW00022536
2013Feb72.0°F71.8°F+0.3°USW00022536
2013Mar69.7°F72.8°F-3.1°USW00022536
2013Apr72.8°F74.0°F-1.2°USW00022536
2013May75.1°F75.5°F-0.4°USW00022536
2013Jun77.5°F77.8°F-0.3°USW00022536
2013Jul77.0°F79.0°F-2.0°USW00022536
2013Aug79.2°F79.6°F-0.4°USW00022536
2013Sep80.0°F79.5°F+0.6°USW00022536
2013Oct77.3°F78.0°F-0.7°USW00022536
2013Nov74.4°F75.7°F-1.3°USW00022536
2013Dec74.0°F73.2°F+0.7°USW00022536
2014Jan71.1°F71.8°F-0.8°USW00022536
2014Feb71.2°F71.8°F-0.5°USW00022536
2014Mar71.6°F72.8°F-1.3°USW00022536
2014Apr74.5°F74.0°F+0.4°USW00022536
2014May75.9°F75.5°F+0.3°USW00022536
2014Jun77.5°F77.8°F-0.4°USW00022536
2014Jul79.6°F79.0°F+0.6°USW00022536
2014Aug79.4°F79.6°F-0.2°USW00022536
2014Sep80.6°F79.5°F+1.2°USW00022536
2014Oct80.1°F78.0°F+2.1°USW00022536
2014Nov76.1°F75.7°F+0.4°USW00022536
2014Dec71.7°F73.2°F-1.5°USW00022536
2015Jan71.4°F71.8°F-0.4°USW00022536
2015Feb73.5°F71.8°F+1.8°USW00022536
2015Mar72.9°F72.8°F+0.0°USW00022536
2015Apr76.4°F74.0°F+2.4°USW00022536
2015May76.4°F75.5°F+0.8°USW00022536
2015Jun78.4°F77.8°F+0.5°USW00022536
2015Jul80.7°F79.0°F+1.7°USW00022536
2015Aug81.4°F79.6°F+1.7°USW00022536
2015Sep80.3°F79.5°F+0.9°USW00022536
2015Oct78.0°F78.0°F+0.0°USW00022536
2015Nov78.9°F75.7°F+3.2°USW00022536
2015Dec76.2°F73.2°F+3.0°USW00022536
2016Jan72.6°F71.8°F+0.8°USW00022536
2016Feb72.1°F71.8°F+0.3°USW00022536
2016Mar72.3°F72.8°F-0.6°USW00022536
2016Apr76.0°F74.0°F+2.0°USW00022536
2016May76.9°F75.5°F+1.3°USW00022536
2016Jun76.3°F77.8°F-1.5°USW00022536
2016Jul78.2°F79.0°F-0.8°USW00022536
2016Aug80.6°F79.6°F+1.0°USW00022536
2016Sep81.4°F79.5°F+1.9°USW00022536
2016Oct79.5°F78.0°F+1.5°USW00022536
2016Nov76.7°F75.7°F+1.0°USW00022536
2016Dec73.5°F73.2°F+0.2°USW00022536
2017Jan72.6°F71.8°F+0.8°USW00022536
2017Feb71.8°F71.8°F+0.0°USW00022536
2017Mar73.8°F72.8°F+0.9°USW00022536
2017Apr76.0°F74.0°F+2.0°USW00022536
2017May77.8°F75.5°F+2.3°USW00022536
2017Jun79.4°F77.8°F+1.6°USW00022536
2017Jul81.1°F79.0°F+2.1°USW00022536
2017Aug82.7°F79.6°F+3.1°USW00022536
2017Sep81.7°F79.5°F+2.2°USW00022536
2017Oct78.4°F78.0°F+0.4°USW00022536
2017Nov74.9°F75.7°F-0.8°USW00022536
2017Dec68.4°F73.2°F-4.8°USW00022536
2018Jan73.4°F71.8°F+1.6°USW00022536
2018Feb71.8°F71.8°F+0.1°USW00022536
2018Mar72.7°F72.8°F-0.1°USW00022536
2018Apr74.6°F74.0°F+0.6°USW00022536
2018May75.6°F75.5°F+0.1°USW00022536
2018Jun78.5°F77.8°F+0.7°USW00022536
2018Jul80.0°F79.0°F+1.0°USW00022536
2018Aug80.2°F79.6°F+0.6°USW00022536
2018Sep77.6°F79.5°F-1.9°USW00022536
2018Oct78.0°F78.0°F+0.0°USW00022536
2018Nov77.0°F75.7°F+1.3°USW00022536
2018Dec75.0°F73.2°F+1.8°USW00022536
2019Jan73.0°F71.8°F+1.2°USW00022536
2019Feb70.4°F71.8°F-1.4°USW00022536
2019Mar72.4°F72.8°F-0.4°USW00022536
2019Apr76.2°F74.0°F+2.2°USW00022536
2019May77.1°F75.5°F+1.6°USW00022536
2019Jun79.8°F77.8°F+2.0°USW00022536
2019Jul81.8°F79.0°F+2.8°USW00022536
2019Aug83.4°F79.6°F+3.8°USW00022536
2019Sep83.3°F79.5°F+3.8°USW00022536
2019Oct79.7°F78.0°F+1.7°USW00022536
2019Nov77.2°F75.7°F+1.5°USW00022536
2019Dec76.4°F73.2°F+3.2°USW00022536
2020Jan74.5°F71.8°F+2.7°USW00022536
2020Feb73.2°F71.8°F+1.5°USW00022536
2020Mar73.8°F72.8°F+0.9°USW00022536
2020Apr75.4°F74.0°F+1.4°USW00022536
2020May76.3°F75.5°F+0.7°USW00022536
2020Jun79.1°F77.8°F+1.3°USW00022536
2020Jul79.8°F79.0°F+0.8°USW00022536
2020Aug80.8°F79.6°F+1.2°USW00022536
2020Sep81.9°F79.5°F+2.4°USW00022536
2020Oct79.1°F78.0°F+1.1°USW00022536
2020Nov77.4°F75.7°F+1.7°USW00022536
2020Dec76.2°F73.2°F+3.0°USW00022536
2021Jan74.2°F71.8°F+2.4°USW00022536
2021Feb72.2°F71.8°F+0.4°USW00022536
2021Mar72.2°F72.8°F-0.6°USW00022536
2021Apr74.0°F74.0°F+0.0°USW00022536
2021May76.7°F75.5°F+1.2°USW00022536
2021Jun79.0°F77.8°F+1.2°USW00022536
2021Jul81.1°F79.0°F+2.0°USW00022536
2021Aug81.6°F79.6°F+2.0°USW00022536
2021Sep79.6°F79.5°F+0.1°USW00022536
2021Oct76.6°F78.0°F-1.4°USW00022536
2021Nov76.4°F75.7°F+0.7°USW00022536
2021Dec74.8°F73.2°F+1.6°USW00022536
2022Jan72.1°F71.8°F+0.3°USW00022536
2022Feb72.6°F71.8°F+0.8°USW00022536
2022Mar73.4°F72.8°F+0.6°USW00022536
2022Apr74.5°F74.0°F+0.5°USW00022536
2022May75.7°F75.5°F+0.1°USW00022536
2022Jun75.3°F77.8°F-2.5°USW00022536
2022Jul79.9°F79.0°F+0.9°USW00022536
2022Aug78.0°F79.6°F-1.7°USW00022536
2022Sep79.5°F79.5°F+0.1°USW00022536
2022Oct77.6°F78.0°F-0.3°USW00022536
2022Nov76.7°F75.7°F+1.0°USW00022536
2022Dec75.8°F73.2°F+2.6°USW00022536
2023Jan73.6°F71.8°F+1.7°USW00022536
2023Feb74.7°F71.8°F+2.9°USW00022536
2023Mar74.7°F72.8°F+1.9°USW00022536
2023Apr74.2°F74.0°F+0.2°USW00022536
2023May76.0°F75.5°F+0.5°USW00022536
2023Jun78.4°F77.8°F+0.6°USW00022536
2023Jul81.9°F79.0°F+2.9°USW00022536
2023Aug82.9°F79.6°F+3.3°USW00022536
2023Sep79.8°F79.5°F+0.3°USW00022536
2023Oct77.5°F78.0°F-0.5°USW00022536
2023Nov76.6°F75.7°F+0.9°USW00022536
2023Dec73.4°F73.2°F+0.2°USW00022536
2024Jan73.2°F71.8°F+1.4°USW00022536
2024Feb72.9°F71.8°F+1.1°USW00022536
2024Mar70.4°F72.8°F-2.4°USW00022536
2024Apr74.6°F74.0°F+0.5°USW00022536
2024May75.7°F75.5°F+0.2°USW00022536
2024Jun77.8°F77.8°F+0.0°USW00022536
2024Jul79.2°F79.0°F+0.2°USW00022536
2024Aug80.5°F79.6°F+0.9°USW00022536
2024Sep80.4°F79.5°F+0.9°USW00022536
2024Oct80.1°F78.0°F+2.1°USW00022536
2024Nov76.3°F75.7°F+0.6°USW00022536
2024Dec74.8°F73.2°F+1.6°USW00022536
2025Jan73.1°F71.8°F+1.3°USW00022536
2025Feb73.0°F71.8°F+1.3°USW00022536
2025Mar75.4°F72.8°F+2.5°USW00022536
2025Apr76.0°F74.0°F+2.0°USW00022536
2025May77.7°F75.5°F+2.2°USW00022536
2025Jun78.7°F77.8°F+0.9°USW00022536
2025Jul80.0°F79.0°F+1.0°USW00022536
2025Aug81.2°F79.6°F+1.6°USW00022536
2025Sep80.1°F79.5°F+0.7°USW00022536
2025Oct79.1°F78.0°F+1.1°USW00022536
2025Nov76.8°F75.7°F+1.1°USW00022536
2025Dec75.2°F73.2°F+2.0°USW00022536
2026Jan72.7°F71.8°F+0.9°USW00022536

Showing 913 of 913 records. = gap-filled data

This table shows raw (unsmoothed) monthly anomalies. The spiral applies a 12-month moving average to highlight long-term trends.

Methodology

Methodology How we calculate anomalies

1. Data Acquisition

We query NOAA's Global Summary of the Month (GSOM) database for the closest weather station with good historical coverage, starting from 1930.

Temperature metric: Monthly average temperature (TAVG). When TAVG is unavailable, we use (TMAX + TMIN) / 2 as a proxy.

2. Gap Filling

Some months may have missing data. We fill gaps using data from nearby weather stations (within ~200km).

12

Initial gaps

1

Filled

11

Unfillable

Fill stations: KEALIA 1112, HI US

3. Baseline Calculation

The baseline is a 25-year window dynamically centered on the data's midpoint, requiring at least 90% coverage. If coverage is insufficient, the window shifts forward in 5-year increments until the threshold is met.

Period: 1976 – 2001 (100% coverage)

MonthBaselineYears
January71.8°F26/26
February71.8°F26/26
March72.8°F26/26
April74.0°F26/26
May75.5°F26/26
June77.8°F26/26
July79.0°F26/26
August79.6°F26/26
September79.5°F26/26
October78.0°F26/26
November75.7°F26/26
December73.2°F26/26

4. Anomaly Calculation

For each month, we calculate how far it deviates from the baseline. These are raw monthly anomalies.

Anomaly = Actual Temperature − Baseline[month]

5. Smoothing

The spiral visualization applies a 12-month centered moving average to reduce month-to-month noise and highlight multi-year warming trends. The spiral shows smoothed values, not raw anomalies.

6. Reading the Visualizations

Spiral: A 3D helix where each loop represents one year. The radius indicates the smoothed temperature anomaly, and colors range from blue (cold) to red (warm). The top view shows the annual cycle, while the side view shows time progression.

Stripes: Each stripe represents one year's average anomaly (the mean of all monthly anomalies for that year). No additional smoothing is applied; yearly aggregation naturally reduces noise.

Color scale: Color bounds are set to the 5th and 95th percentile of anomalies to avoid outlier washout, with a neutral zone of approximately ±0.1°C.

7. Data Quality Notes

Time of Observation Bias (TOBS)

Early cooperative weather stations typically read their min/max thermometers in the afternoon. This meant a single hot afternoon's peak temperature could be counted in two consecutive daily readings, inflating monthly maximums.

Between the 1950s and 1980s, most stations switched to morning or midnight observation times. This eliminated the warm bias but introduced a slight cool bias during the transition.

As a result, early decades in our data may read slightly warmer than they actually were, and the transition period may show an artificial cooling dip. Neither reflects actual temperature change. We use raw GSOM data without TOBS adjustments (NOAA's adjusted products like nClimDiv correct for this, but our station-level data does not).

Frequently Asked Questions

Is Kilauea, Hawaii getting warmer?

Based on 76+ years of NOAA temperature records, Kilauea has warmed at a rate of approximately 0.25°F per decade. This trend is calculated from monthly temperature anomalies relative to the location's historical baseline period.

What was the warmest year on record in Kilauea?

The warmest year on record in Kilauea was 2019, based on average annual temperature anomaly from NOAA station data.

Where does the temperature data for Kilauea come from?

Data comes from the LIHUE WEATHER SERVICE OFFICE AIRPORT 1020.1, HI US weather station, part of NOAA's Global Historical Climatology Network. This station has recorded 76+ years of temperature observations used to build Kilauea's climate profile.

How are the climate visualizations for Kilauea created?

Three visualizations are generated from Kilauea's NOAA data: a climate spiral showing monthly temperature anomalies as concentric rings (inspired by NASA), warming stripes where each vertical stripe represents one year's temperature anomaly, and a linear trend chart showing the long-term trajectory.

Can I download Kilauea's temperature data?

Yes. The interactive data table on this page shows every monthly temperature reading in Kilauea's record. You can filter by decade and download the complete dataset as a CSV file for your own analysis.

Wear Kilauea's Climate Story

These visualizations are printed on demand using Kilauea's actual NOAA data. Every purchase plants a tree.

Shop Kilauea Climate Apparel →

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