Climate Change in Kailua Kona, Hawaii

75+ years of recorded temperature data show Kailua Kona is warming.

Based on our analysis of 75 years of temperature data near Kailua Kona, HI, this area shows a warming trend of approximately +0.3°F per decade.

Key Climate Facts

Rate of Change

+0.3°F

per decade

Warmest Year

1986

+7.8°F anomaly

Recent Warm Years

0 / 10

above-average years

Decade Shift

+0.1°F

2010s vs 1930s

Compared to the National Average

Kailua Kona is warming 0.1°F/decade faster than the national average.

National: +0.20°F/decade
Kailua Kona: +0.29°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 Kailua Kona's long-term warming trend.

Temperature anomaly spiral for Kailua Kona, Hawaii
Climate spiral: monthly temperature anomalies from 75+ years of NOAA records for Kailua Kona, 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 Kailua Kona, Hawaii
Warming stripes: each stripe is one year of average temperature anomaly for Kailua Kona, HI.

Temperature Trend

Annual temperature anomalies plotted over time with a linear regression trend line. The slope of +0.29°F per decade quantifies the rate of change.

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

Temperature by Decade

1930s
-3.50°F
1940s
-1.85°F
1950s
-1.51°F
1960s
-1.85°F
1970s
-2.02°F
1980s
+2.92°F
1990s
+4.81°F
2000s
-3.36°F
2010s
-3.42°F

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

Anomaly Scale

-4.7°F Colder Normal +6.8°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 Kailua Kona, HI. Filter by decade or download as CSV.

Data Sources & Audit

Station
KAINALIU 73.2, HI US
Distance
12.4 mi
Coverage
65%
Records
585
Range
1939-01 – 2013-12
Gap-filled
311 from 6 stations
Full Data Audit 896 records
YearMonthTempBaselineAnomalySourceGap
1939Jan66.3°F68.8°F-2.4°USC00512751
1939Feb66.3°F69.0°F-2.7°USC00512751
1939Mar65.6°F69.5°F-3.9°USC00512751
1939Apr65.9°F69.8°F-4.0°USC00512751
1939May67.4°F71.0°F-3.6°USC00512751
1939Jun67.5°F71.9°F-4.5°USC00512751
1939Jul68.9°F73.0°F-4.1°USC00512751
1939Aug69.6°F73.7°F-4.1°USC00512751
1939Sep69.2°F73.6°F-4.3°USC00512751
1939Oct69.4°F73.7°F-4.2°USC00512751
1939Nov71.5°F72.5°F-0.9°USC00516697
1939Dec67.1°F70.4°F-3.3°USC00512751
1940Jan67.4°F68.8°F-1.4°USC00512751
1940Feb67.2°F69.0°F-1.7°USC00512751
1940Mar68.3°F69.5°F-1.2°USC00512751
1940Apr69.7°F69.8°F-0.1°USC00512751
1940May70.6°F71.0°F-0.5°USC00512751
1940Jun71.4°F71.9°F-0.5°USC00512751
1940Jul73.8°F73.0°F+0.7°USC00512751
1940Aug75.1°F73.7°F+1.4°USC00512751
1940Sep75.0°F73.6°F+1.4°USC00512751
1940Oct75.5°F73.7°F+1.9°USC00516697
1940Nov74.2°F72.5°F+1.7°USC00516697
1940Dec69.4°F70.4°F-1.0°USC00512751
1941Jan69.5°F68.8°F+0.7°USC00512751
1941Feb70.1°F69.0°F+1.1°USC00516697
1941Mar69.3°F69.5°F-0.2°USC00516697
1941Apr70.3°F69.8°F+0.5°USC00516697
1941May69.8°F71.0°F-1.2°USC00512751
1941Jun72.0°F71.9°F+0.1°USC00512751
1941Jul72.2°F73.0°F-0.9°USC00512751
1941Aug74.6°F73.7°F+0.9°USC00512751
1941Sep73.8°F73.6°F+0.2°USC00512751
1941Oct73.8°F73.7°F+0.1°USC00516697
1941Nov71.0°F72.5°F-1.5°USC00512751
1941Dec67.8°F70.4°F-2.6°USC00512751
1942Jan68.0°F68.8°F-0.7°USC00512751
1942Feb68.1°F69.0°F-0.9°USC00512751
1942Mar67.0°F69.5°F-2.6°USC00512751
1942Apr67.1°F69.8°F-2.7°USC00512751
1942May72.1°F71.0°F+1.1°USC00516697
1942Aug72.7°F73.7°F-1.0°USC00512751
1942Sep72.9°F73.6°F-0.7°USC00512751
1942Oct72.3°F73.7°F-1.4°USC00512751
1942Nov72.3°F72.5°F-0.2°USC00512751
1942Dec70.6°F70.4°F+0.2°USC00512751
1943Jan69.1°F68.8°F+0.3°USC00512751
1943Feb67.9°F69.0°F-1.1°USC00512751
1943Mar67.9°F69.5°F-1.7°USC00512751
1943Apr70.0°F69.8°F+0.1°USC00512751
1943May70.8°F71.0°F-0.2°USC00512751
1943Jun71.2°F71.9°F-0.8°USC00512751
1943Jul72.1°F73.0°F-1.0°USC00512751
1943Aug72.1°F73.7°F-1.6°USC00512751
1943Sep71.8°F73.6°F-1.8°USC00512751
1943Oct71.0°F73.7°F-2.6°USC00512751
1943Nov69.1°F72.5°F-3.3°USC00512751
1943Dec67.8°F70.4°F-2.5°USC00512751
1944Jan66.7°F68.8°F-2.1°USC00512751
1944Feb66.7°F69.0°F-2.2°USC00512751
1944Mar67.9°F69.5°F-1.6°USC00512751
1944Apr68.3°F69.8°F-1.5°USC00512751
1944May68.0°F71.0°F-3.0°USC00512751
1944Jun69.1°F71.9°F-2.8°USC00512751
1944Jul70.4°F73.0°F-2.6°USC00512751
1944Aug69.8°F73.7°F-3.9°USC00512751
1944Sep70.1°F73.6°F-3.4°USC00512751
1944Oct69.6°F73.7°F-4.0°USC00512751
1944Nov68.3°F72.5°F-4.1°USC00512751
1944Dec65.6°F70.4°F-4.8°USC00512751
1945Jan65.8°F68.8°F-3.0°USC00512751
1945Feb67.2°F69.0°F-1.8°USC00512751
1945Mar67.0°F69.5°F-2.5°USC00512751
1945Apr67.4°F69.8°F-2.4°USC00512751
1945May69.1°F71.0°F-2.0°USC00512751
1945Jun69.5°F71.9°F-2.4°USC00512751
1945Jul70.3°F73.0°F-2.7°USC00512751
1945Aug70.3°F73.7°F-3.4°USC00512751
1945Sep69.5°F73.6°F-4.1°USC00512751
1945Oct69.0°F73.7°F-4.7°USC00512751
1945Nov68.1°F72.5°F-4.3°USC00512751
1945Dec65.7°F70.4°F-4.7°USC00512751
1946Jan65.5°F68.8°F-3.3°USC00512751
1946Feb65.6°F69.0°F-3.3°USC00512751
1946Mar65.8°F69.5°F-3.7°USC00512751
1946Apr65.6°F69.8°F-4.2°USC00512751
1946May67.4°F71.0°F-3.7°USC00512751
1946Jun69.1°F71.9°F-2.8°USC00512751
1946Jul69.9°F73.0°F-3.2°USC00512751
1946Aug71.0°F73.7°F-2.7°USC00512751
1946Sep70.1°F73.6°F-3.4°USC00512751
1946Oct69.5°F73.7°F-4.2°USC00512751
1946Nov68.8°F72.5°F-3.6°USC00512751
1946Dec67.4°F70.4°F-3.0°USC00512751
1947Jan65.2°F68.8°F-3.6°USC00512751
1947Feb67.7°F69.0°F-1.2°USC00512751
1947Mar66.8°F69.5°F-2.7°USC00512751
1947Apr67.9°F69.8°F-1.9°USC00512751
1947May67.0°F71.0°F-4.0°USC00512751
1947Jun68.3°F71.9°F-3.6°USC00512751
1947Jul69.2°F73.0°F-3.8°USC00512751
1947Aug70.2°F73.7°F-3.5°USC00512751
1947Sep71.2°F73.6°F-2.4°USC00512751
1947Oct72.0°F73.7°F-1.6°USC00512751
1947Nov71.0°F72.5°F-1.5°USC00512751
1947Dec68.6°F70.4°F-1.7°USC00512751
1948Jan66.5°F68.8°F-2.2°USC00512751
1948Feb67.0°F69.0°F-2.0°USC00512751
1948Mar68.6°F69.5°F-0.9°USC00512751
1948Apr69.5°F69.8°F-0.3°USC00512751
1948May69.8°F71.0°F-1.2°USC00512751
1948Jun70.2°F71.9°F-1.7°USC00512751
1948Jul71.3°F73.0°F-1.7°USC00512751
1948Aug72.2°F73.7°F-1.5°USC00512751
1948Sep72.3°F73.6°F-1.3°USC00512751
1948Oct71.7°F73.7°F-1.9°USC00512751
1948Nov70.0°F72.5°F-2.5°USC00512751
1948Dec68.1°F70.4°F-2.3°USC00512751
1949Jan67.2°F68.8°F-1.5°USC00512751
1949Feb67.6°F69.0°F-1.3°USC00512751
1949Mar67.2°F69.5°F-2.3°USC00512751
1949Apr67.0°F69.8°F-2.8°USC00512751
1949May68.6°F71.0°F-2.5°USC00512751
1949Jun69.8°F71.9°F-2.1°USC00512751
1949Jul71.0°F73.0°F-2.0°USC00512751
1949Aug71.3°F73.7°F-2.4°USC00512751
1949Sep71.9°F73.6°F-1.7°USC00512751
1949Oct71.4°F73.7°F-2.3°USC00512751
1949Nov69.1°F72.5°F-3.4°USC00512751
1949Dec69.3°F70.4°F-1.1°USC00512751
1950Jan69.5°F68.8°F+0.7°USC00512751
1950Feb69.6°F69.0°F+0.7°USC00512751
1950Mar69.1°F69.5°F-0.5°USC00512751
1950Apr69.5°F69.8°F-0.4°USC00512751
1950May69.7°F71.0°F-1.3°USC00512751
1950Jun70.2°F71.9°F-1.7°USC00512751
1950Jul71.1°F73.0°F-1.9°USC00512751
1950Aug73.6°F73.7°F-0.1°USC00512751
1950Sep72.9°F73.6°F-0.7°USC00512751
1950Oct72.1°F73.7°F-1.5°USC00512751
1950Nov71.3°F72.5°F-1.1°USC00512751
1950Dec69.0°F70.4°F-1.4°USC00512751
1951Jan68.7°F68.8°F+0.0°USC00512751
1951Feb68.7°F69.0°F-0.3°USC00512751
1951Mar69.0°F69.5°F-0.5°USC00512751
1951Apr68.9°F69.8°F-0.9°USC00512751
1951May70.4°F71.0°F-0.7°USC00512751
1951Jun70.8°F71.9°F-1.1°USC00512751
1951Jul72.6°F73.0°F-0.5°USC00512751
1951Aug72.7°F73.7°F-1.0°USC00512751
1951Sep72.8°F73.6°F-0.7°USC00512751
1951Oct73.3°F73.7°F-0.4°USC00512751
1951Nov70.7°F72.5°F-1.8°USC00512751
1951Dec68.8°F70.4°F-1.6°USC00512751
1952Jan68.2°F68.8°F-0.6°USC00512751
1952Feb68.3°F69.0°F-0.7°USC00512751
1952Mar68.7°F69.5°F-0.9°USC00512751
1952Apr68.4°F69.8°F-1.5°USC00512751
1952May69.2°F71.0°F-1.9°USC00512751
1952Jun70.3°F71.9°F-1.6°USC00512751
1952Jul71.6°F73.0°F-1.5°USC00512751
1952Aug71.4°F73.7°F-2.3°USC00512751
1952Sep71.2°F73.6°F-2.4°USC00512751
1952Oct72.1°F73.7°F-1.6°USC00512751
1952Nov70.3°F72.5°F-2.2°USC00512751
1952Dec67.8°F70.4°F-2.5°USC00512751
1953Jan67.6°F68.8°F-1.1°USC00512751
1953Feb68.6°F69.0°F-0.4°USC00512751
1953Mar68.4°F69.5°F-1.1°USC00512751
1953Apr68.4°F69.8°F-1.4°USC00512751
1953May69.2°F71.0°F-1.8°USC00512751
1953Jun69.8°F71.9°F-2.1°USC00512751
1953Jul70.3°F73.0°F-2.7°USC00512751
1953Aug71.9°F73.7°F-1.8°USC00512751
1953Sep72.5°F73.6°F-1.0°USC00512751
1953Oct71.7°F73.7°F-1.9°USC00512751
1953Nov69.8°F72.5°F-2.6°USC00512751
1953Dec68.5°F70.4°F-1.9°USC00512751
1954Jan68.2°F68.8°F-0.6°USC00512751
1954Feb69.9°F69.0°F+0.9°USC00512751
1954Mar68.8°F69.5°F-0.8°USC00512751
1954Apr74.3°F69.8°F+4.5°USC00514764
1954May75.0°F71.0°F+4.0°USC00514764
1954Jun77.1°F71.9°F+5.2°USC00514764
1954Jul72.9°F73.0°F-0.1°USC00512751
1954Aug73.5°F73.7°F-0.2°USC00512751
1954Sep72.8°F73.6°F-0.8°USC00512751
1954Oct71.5°F73.7°F-2.2°USC00512751
1954Nov70.7°F72.5°F-1.7°USC00512751
1954Dec68.9°F70.4°F-1.5°USC00512751
1955Jan67.2°F68.8°F-1.5°USC00512751
1955Feb66.7°F69.0°F-2.3°USC00512751
1955Mar67.1°F69.5°F-2.5°USC00512751
1955Apr68.5°F69.8°F-1.3°USC00512751
1955May68.2°F71.0°F-2.9°USC00512751
1955Jun67.5°F71.9°F-4.5°USC00512751
1955Jul68.6°F73.0°F-4.4°USC00512751
1955Aug68.9°F73.7°F-4.8°USC00512751
1955Sep69.0°F73.6°F-4.5°USC00512751
1955Oct68.9°F73.7°F-4.8°USC00512751
1955Nov68.5°F72.5°F-3.9°USC00512751
1955Dec67.1°F70.4°F-3.3°USC00512751
1956Jan68.0°F68.8°F-0.8°USC00512751
1956Feb67.2°F69.0°F-1.8°USC00512751
1956Mar67.4°F69.5°F-2.2°USC00512751
1956Apr67.7°F69.8°F-2.1°USC00512751
1956May69.0°F71.0°F-2.0°USC00512751
1956Jun69.6°F71.9°F-2.3°USC00512751
1956Jul70.0°F73.0°F-3.0°USC00512751
1956Aug72.1°F73.7°F-1.6°USC00512751
1956Sep71.2°F73.6°F-2.3°USC00512751
1956Oct71.2°F73.7°F-2.5°USC00512751
1956Nov69.3°F72.5°F-3.2°USC00512751
1956Dec68.2°F70.4°F-2.2°USC00512751
1957Jan66.8°F68.8°F-2.0°USC00512751
1957Feb64.7°F69.0°F-4.3°USC00512751
1957Mar65.4°F69.5°F-4.2°USC00512751
1957Apr68.3°F69.8°F-1.5°USC00512751
1957May68.1°F71.0°F-3.0°USC00512751
1957Jun69.9°F71.9°F-2.0°USC00512751
1957Jul70.7°F73.0°F-2.3°USC00512751
1957Aug72.0°F73.7°F-1.7°USC00512751
1957Sep72.8°F73.6°F-0.7°USC00512751
1957Oct71.8°F73.7°F-1.8°USC00512751
1957Nov70.7°F72.5°F-1.7°USC00512751
1957Dec68.7°F70.4°F-1.7°USC00512751
1958Jan66.2°F68.8°F-2.5°USC00512751
1958Feb67.7°F69.0°F-1.3°USC00512751
1958Mar67.1°F69.5°F-2.4°USC00512751
1958Apr68.4°F69.8°F-1.5°USC00512751
1958May68.6°F71.0°F-2.4°USC00512751
1958Jun70.1°F71.9°F-1.8°USC00512751
1958Jul71.9°F73.0°F-1.1°USC00512751
1958Aug73.2°F73.7°F-0.5°USC00512751
1958Sep72.8°F73.6°F-0.7°USC00512751
1958Oct71.4°F73.7°F-2.3°USC00512751
1958Nov70.7°F72.5°F-1.8°USC00512751
1958Dec68.4°F70.4°F-2.0°USC00512751
1959Jan69.1°F68.8°F+0.3°USC00512751
1959Feb67.7°F69.0°F-1.2°USC00512751
1959Mar68.9°F69.5°F-0.7°USC00512751
1959Apr69.4°F69.8°F-0.4°USC00512751
1959May69.6°F71.0°F-1.4°USC00512751
1959Jun70.3°F71.9°F-1.6°USC00512751
1959Jul71.1°F73.0°F-2.0°USC00512751
1959Aug72.1°F73.7°F-1.6°USC00512751
1959Sep73.2°F73.6°F-0.4°USC00512751
1959Oct71.3°F73.7°F-2.3°USC00512751
1959Nov70.4°F72.5°F-2.0°USC00512751
1959Dec67.9°F70.4°F-2.4°USC00512751
1960Jan66.5°F68.8°F-2.3°USC00512751
1960Feb66.7°F69.0°F-2.2°USC00512751
1960Mar68.0°F69.5°F-1.6°USC00512751
1960Apr68.5°F69.8°F-1.4°USC00512751
1960May69.3°F71.0°F-1.7°USC00512751
1960Jun70.0°F71.9°F-1.9°USC00512751
1960Jul70.7°F73.0°F-2.3°USC00512751
1960Aug71.3°F73.7°F-2.4°USC00512751
1960Sep71.4°F73.6°F-2.2°USC00512751
1960Oct71.4°F73.7°F-2.3°USC00512751
1960Nov69.4°F72.5°F-3.0°USC00512751
1960Dec67.7°F70.4°F-2.6°USC00512751
1961Jan67.4°F68.8°F-1.4°USC00512751
1961Feb68.7°F69.0°F-0.3°USC00512751
1961Mar67.6°F69.5°F-2.0°USC00512751
1961Apr67.7°F69.8°F-2.2°USC00512751
1961May68.8°F71.0°F-2.3°USC00512751
1961Jun68.9°F71.9°F-3.0°USC00512751
1961Jul70.2°F73.0°F-2.9°USC00512751
1961Aug71.3°F73.7°F-2.4°USC00512751
1961Sep70.6°F73.6°F-3.0°USC00512751
1961Oct71.6°F73.7°F-2.1°USC00512751
1961Nov69.5°F72.5°F-3.0°USC00512751
1961Dec67.5°F70.4°F-2.9°USC00512751
1962Jan67.6°F68.8°F-1.2°USC00512751
1962Feb66.6°F69.0°F-2.4°USC00512751
1962Mar67.3°F69.5°F-2.2°USC00512751
1962Apr68.1°F69.8°F-1.7°USC00512751
1962May68.5°F71.0°F-2.5°USC00512751
1962Jun68.9°F71.9°F-3.0°USC00512751
1962Jul69.5°F73.0°F-3.6°USC00512751
1962Aug70.2°F73.7°F-3.5°USC00512751
1962Sep69.9°F73.6°F-3.6°USC00512751
1962Oct69.7°F73.7°F-4.0°USC00512751
1962Nov68.5°F72.5°F-3.9°USC00512751
1962Dec66.3°F70.4°F-4.1°USC00512751
1963Jan66.2°F68.8°F-2.6°USC00512751
1963Feb67.9°F69.0°F-1.1°USC00512751
1963Mar68.3°F69.5°F-1.3°USC00512751
1963Apr68.7°F69.8°F-1.1°USC00512751
1963May68.6°F71.0°F-2.5°USC00512751
1963Jun69.1°F71.9°F-2.8°USC00512751
1963Jul69.9°F73.0°F-3.1°USC00512751
1963Aug70.3°F73.7°F-3.4°USC00512751
1963Sep71.7°F73.6°F-1.9°USC00512751
1963Oct71.5°F73.7°F-2.1°USC00512751
1963Nov69.7°F72.5°F-2.7°USC00512751
1963Dec68.9°F70.4°F-1.5°USC00512751
1964Jan68.4°F68.8°F-0.4°USC00512751
1964Feb66.8°F69.0°F-2.1°USC00512751
1964Mar66.8°F69.5°F-2.7°USC00512751
1964Apr67.7°F69.8°F-2.2°USC00512751
1964May68.0°F71.0°F-3.0°USC00512751
1964Jun70.3°F71.9°F-1.6°USC00512751
1964Jul70.2°F73.0°F-2.8°USC00512751
1964Aug70.9°F73.7°F-2.8°USC00512751
1964Sep70.6°F73.6°F-3.0°USC00512751
1964Oct70.4°F73.7°F-3.3°USC00512751
1964Nov69.3°F72.5°F-3.2°USC00512751
1964Dec68.7°F70.4°F-1.7°USC00512751
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1993Apr76.4°F69.8°F+6.6°USC00513911
1993May76.3°F71.0°F+5.2°USC00513911
1993Jun78.2°F71.9°F+6.3°USC00513911
1993Jul78.6°F73.0°F+5.6°USC00513911
1993Aug79.7°F73.7°F+6.0°USC00513911
1993Sep79.7°F73.6°F+6.2°USC00513911
1993Oct78.6°F73.7°F+5.0°USC00513911
1993Nov75.9°F72.5°F+3.4°USC00513911
1993Dec73.8°F70.4°F+3.4°USC00513911
1994Jan72.1°F68.8°F+3.4°USC00513911
1994Feb73.0°F69.0°F+4.0°USC00513911
1994Mar74.1°F69.5°F+4.6°USC00513911
1994Apr75.2°F69.8°F+5.4°USC00513911
1994May76.8°F71.0°F+5.8°USC00513911
1994Jun77.6°F71.9°F+5.7°USC00513911
1994Jul79.3°F73.0°F+6.3°USC00513911
1994Aug80.2°F73.7°F+6.5°USC00513911
1994Sep80.1°F73.6°F+6.5°USC00513911
1994Oct78.6°F73.7°F+5.0°USC00513911
1994Nov77.6°F72.5°F+5.2°USC00513911
1994Dec73.8°F70.4°F+3.4°USC00513911
1995Jan72.2°F68.8°F+3.4°USC00513911
1995Feb71.9°F69.0°F+3.0°USC00513911
1995Mar74.8°F69.5°F+5.3°USC00513911
1995Apr75.6°F69.8°F+5.8°USC00513911
1995May76.7°F71.0°F+5.7°USC00513911
1995Jun77.8°F71.9°F+5.9°USC00513911
1995Jul79.3°F73.0°F+6.3°USC00513911
1995Aug79.3°F73.7°F+5.6°USC00513911
1995Sep79.0°F73.6°F+5.5°USC00513911
1995Oct78.5°F73.7°F+4.8°USC00513911
1995Nov77.4°F72.5°F+5.0°USC00513911
1995Dec75.1°F70.4°F+4.7°USC00513911
1996Jan74.4°F68.8°F+5.7°USC00513911
1996Feb73.2°F69.0°F+4.2°USC00513911
1996Mar74.2°F69.5°F+4.6°USC00513911
1996Apr76.7°F69.8°F+6.9°USC00513911
1996May78.3°F71.0°F+7.2°USC00513911
1996Jun79.3°F71.9°F+7.3°USC00513911
1996Jul80.1°F73.0°F+7.1°USC00513911
1996Aug79.6°F73.7°F+5.9°USC00513911
1996Sep79.2°F73.6°F+5.6°USC00513911
1996Oct79.1°F73.7°F+5.4°USC00513911
1996Nov77.2°F72.5°F+4.7°USC00513911
1996Dec73.5°F70.4°F+3.1°USC00513911
1997Jan72.1°F68.8°F+3.4°USC00513911
1997Feb73.5°F69.0°F+4.5°USC00513911
1997Mar73.8°F69.5°F+4.3°USC00513911
1997Apr76.7°F69.8°F+6.8°USC00513911
1997May76.7°F71.0°F+5.7°USC00513911
1997Jun78.8°F71.9°F+6.9°USC00513911
1997Jul79.1°F73.0°F+6.1°USC00513911
1997Aug79.3°F73.7°F+5.6°USC00513911
1997Sep79.7°F73.6°F+6.2°USC00513911
1997Oct78.3°F73.7°F+4.6°USC00513911
1997Nov77.0°F72.5°F+4.5°USC00513911
1997Dec73.2°F70.4°F+2.9°USC00513911
1998Jan72.8°F68.8°F+4.0°USW00021510
1998Feb73.0°F69.0°F+4.1°USW00021510
1998Mar74.5°F69.5°F+5.0°USW00021510
1998Apr75.3°F69.8°F+5.5°USW00021510
1998May75.1°F71.0°F+4.1°USW00021510
1998Jun76.5°F71.9°F+4.6°USW00021510
1998Jul78.1°F73.0°F+5.1°USW00021510
1998Aug79.2°F73.7°F+5.5°USW00021510
1998Sep78.7°F73.6°F+5.1°USW00021510
1998Oct78.0°F73.7°F+4.4°USW00021510
1998Nov76.6°F72.5°F+4.1°USW00021510
1998Dec74.2°F70.4°F+3.8°USW00021510
1999Jan73.3°F68.8°F+4.5°USW00021510
1999Feb72.9°F69.0°F+3.9°USW00021510
1999Mar74.2°F69.5°F+4.6°USW00021510
1999Apr74.6°F69.8°F+4.8°USW00021510
1999May76.6°F71.0°F+5.6°USW00021510
1999Jun77.0°F71.9°F+5.1°USW00021510
1999Jul77.8°F73.0°F+4.8°USW00021510
1999Aug72.2°F73.7°F-1.5°USW00021510
1999Sep71.5°F73.6°F-2.0°USW00021510
1999Oct70.4°F73.7°F-3.3°USW00021510
1999Nov69.5°F72.5°F-2.9°USW00021510
1999Dec67.9°F70.4°F-2.5°USW00021510
2000Jan65.7°F68.8°F-3.0°USW00021510
2000Feb66.5°F69.0°F-2.5°USW00021510
2000Mar67.4°F69.5°F-2.1°USW00021510
2000Apr68.0°F69.8°F-1.8°USW00021510
2000May69.8°F71.0°F-1.2°USW00021510
2000Jun69.8°F71.9°F-2.1°USW00021510
2000Jul72.0°F73.0°F-1.0°USW00021510
2000Aug72.3°F73.7°F-1.4°USW00021510
2000Sep71.6°F73.6°F-2.0°USW00021510
2000Oct71.4°F73.7°F-2.2°USW00021510
2000Nov68.4°F72.5°F-4.1°USW00021510
2000Dec65.7°F70.4°F-4.7°USW00021510
2001Jan66.1°F68.8°F-2.7°USW00021510
2001Feb65.5°F69.0°F-3.5°USW00021510
2001Mar67.3°F69.5°F-2.3°USW00021510
2001Apr67.0°F69.8°F-2.9°USW00021510
2001May67.7°F71.0°F-3.3°USW00021510
2001Jun69.8°F71.9°F-2.1°USW00021510
2001Jul71.3°F73.0°F-1.8°USW00021510
2001Aug72.9°F73.7°F-0.8°USW00021510
2001Sep71.5°F73.6°F-2.1°USW00021510
2001Oct70.8°F73.7°F-2.8°USW00021510
2001Nov69.8°F72.5°F-2.7°USW00021510
2001Dec67.6°F70.4°F-2.8°USW00021510
2002Jan66.2°F68.8°F-2.5°USW00021510
2002Feb64.6°F69.0°F-4.3°USW00021510
2002Mar66.7°F69.5°F-2.9°USW00021510
2002Apr68.9°F69.8°F-0.9°USW00021510
2002May69.8°F71.0°F-1.2°USW00021510
2002Jun70.7°F71.9°F-1.2°USW00021510
2002Jul71.8°F73.0°F-1.3°USW00021510
2002Aug71.6°F73.7°F-2.1°USC00512751
2002Sep70.7°F73.6°F-2.8°USC00512751
2002Oct71.5°F73.7°F-2.1°USC00512751
2002Nov70.0°F72.5°F-2.5°USC00512751
2002Dec69.0°F70.4°F-1.4°USC00512751
2003Jan67.3°F68.8°F-1.5°USC00512751
2003Feb67.0°F69.0°F-2.0°USC00512751
2003Mar67.0°F69.5°F-2.5°USW00021510
2003Apr67.7°F69.8°F-2.1°USW00021510
2003May69.4°F71.0°F-1.7°USR0000HPUW
2003Jun69.8°F71.9°F-2.2°USR0000HPUW
2003Jul70.5°F73.0°F-2.6°USR0000HPUW
2003Aug71.4°F73.7°F-2.3°USR0000HPUW
2003Sep70.0°F73.6°F-3.5°USR0000HPUW
2003Oct69.3°F73.7°F-4.4°USR0000HPUW
2003Nov67.5°F72.5°F-4.9°USR0000HPUW
2003Dec65.6°F70.4°F-4.7°USR0000HPUW
2004Jan64.7°F68.8°F-4.0°USR0000HPUW
2004Feb65.6°F69.0°F-3.4°USR0000HPUW
2004Mar65.5°F69.5°F-4.0°USR0000HPUW
2004Apr67.1°F69.8°F-2.8°USR0000HPUW
2004May69.6°F71.0°F-1.4°USR0000HPUW
2004Jun70.3°F71.9°F-1.6°USR0000HPUW
2004Jul70.5°F73.0°F-2.6°USR0000HPUW
2004Aug71.6°F73.7°F-2.1°USR0000HPUW
2004Sep70.9°F73.6°F-2.6°USR0000HPUW
2004Oct70.6°F73.7°F-3.0°USR0000HPUW
2004Nov68.9°F72.5°F-3.6°USR0000HPUW
2004Dec66.5°F70.4°F-3.9°USR0000HPUW
2005Jan65.5°F68.8°F-3.2°USR0000HPUW
2005Feb65.0°F69.0°F-3.9°USR0000HPUW
2005Mar65.7°F69.5°F-3.8°USR0000HPUW
2005Apr66.4°F69.8°F-3.5°USR0000HPUW
2005May67.8°F71.0°F-3.3°USR0000HPUW
2005Jun69.0°F71.9°F-2.9°USR0000HPUW
2005Jul71.0°F73.0°F-2.0°USR0000HPUW
2005Aug71.0°F73.7°F-2.6°USR0000HPUW
2005Sep72.1°F73.6°F-1.5°USR0000HPUW
2005Oct70.0°F73.7°F-3.7°USR0000HPUW
2005Nov68.4°F72.5°F-4.0°USR0000HPUW
2005Dec66.4°F70.4°F-4.0°USR0000HPUW
2006Jan65.9°F68.8°F-2.8°USR0000HPUW
2006Feb63.3°F69.0°F-5.6°USR0000HPUW
2006Mar65.8°F69.5°F-3.8°USR0000HPUW
2006Apr65.2°F69.8°F-4.7°USR0000HPUW
2006May63.9°F71.0°F-7.1°USR0000HPUW
2006Jun67.3°F71.9°F-4.6°USR0000HPUW
2006Jul68.9°F73.0°F-4.1°USR0000HPUW
2006Aug69.7°F73.7°F-4.0°USR0000HPUW
2006Sep68.6°F73.6°F-5.0°USR0000HPUW
2006Oct68.9°F73.7°F-4.8°USR0000HPUW
2006Nov67.2°F72.5°F-5.2°USR0000HPUW
2006Dec64.7°F70.4°F-5.7°USR0000HPUW
2007Jan64.1°F68.8°F-4.7°USR0000HPUW
2007Feb61.9°F69.0°F-7.1°USR0000HPUW
2007Mar64.0°F69.5°F-5.5°USR0000HPUW
2007Apr63.1°F69.8°F-6.7°USR0000HPUW
2007May65.1°F71.0°F-5.9°USR0000HPUW
2007Jun66.8°F71.9°F-5.1°USR0000HPUW
2007Jul68.1°F73.0°F-4.9°USR0000HPUW
2007Aug68.6°F73.7°F-5.1°USR0000HPUW
2007Sep68.6°F73.6°F-5.0°USR0000HPUW
2007Oct67.0°F73.7°F-6.6°USR0000HPUW
2007Nov65.9°F72.5°F-6.5°USR0000HPUW
2007Dec64.8°F70.4°F-5.5°USR0000HPUW
2008Jan61.8°F68.8°F-6.9°USR0000HPUW
2008Feb65.8°F69.0°F-3.1°USC00512751
2008Mar64.9°F69.5°F-4.6°USR0000HPUW
2008Apr65.6°F69.8°F-4.2°USR0000HPUW
2008May66.1°F71.0°F-5.0°USR0000HPUW
2008Jun67.6°F71.9°F-4.3°USR0000HPUW
2008Jul69.5°F73.0°F-3.5°USC00512751
2008Aug69.9°F73.7°F-3.8°USC00512751
2008Sep69.1°F73.6°F-4.5°USC00512751
2008Oct70.0°F73.7°F-3.7°USC00512751
2008Nov70.0°F72.5°F-2.5°USC00512751
2008Dec68.1°F70.4°F-2.3°USC00512751
2009Jan66.6°F68.8°F-2.1°USC00512751
2009Feb65.8°F69.0°F-3.1°USC00512751
2009Mar65.6°F69.5°F-3.9°USC00512751
2009Apr66.1°F69.8°F-3.7°USC00512751
2009May69.3°F71.0°F-1.7°USC00512751
2009Jun70.0°F71.9°F-1.9°USC00512751
2009Jul69.2°F73.0°F-3.8°USW00021510
2009Aug71.5°F73.7°F-2.2°USC00512751
2009Sep71.3°F73.6°F-2.2°USC00512751
2009Oct72.3°F73.7°F-1.4°USC00512751
2009Nov66.9°F72.5°F-5.5°USW00021510
2009Dec64.3°F70.4°F-6.1°USW00021510
2010Jan64.9°F68.8°F-3.9°USR0000HPUW
2010Feb63.3°F69.0°F-5.7°USR0000HPUW
2010Mar64.1°F69.5°F-5.4°USR0000HPUW
2010Apr64.4°F69.8°F-5.5°USR0000HPUW
2010May66.5°F71.0°F-4.6°USR0000HPUW
2010Jun67.6°F71.9°F-4.3°USR0000HPUW
2010Jul67.8°F73.0°F-5.2°USR0000HPUW
2010Aug66.0°F73.7°F-7.7°USR0000HPUW
2010Sep67.9°F73.6°F-5.6°USR0000HPUW
2010Oct68.0°F73.7°F-5.6°USR0000HPUW
2010Nov66.3°F72.5°F-6.2°USR0000HPUW
2010Dec68.4°F70.4°F-2.0°USC00512751
2011Jan67.0°F68.8°F-1.8°USC00512751
2011Feb67.4°F69.0°F-1.5°USC00512751
2011Mar67.7°F69.5°F-1.8°USC00512751
2011Apr67.3°F69.8°F-2.6°USC00512751
2011May68.2°F71.0°F-2.8°USC00512751
2011Jun68.9°F71.9°F-3.0°USC00512751
2011Jul69.0°F73.0°F-4.0°USC00512751
2011Aug70.5°F73.7°F-3.2°USC00512751
2011Sep69.4°F73.6°F-4.1°USC00512751
2011Oct67.9°F73.7°F-5.7°USR0000HPUW
2011Nov69.1°F72.5°F-3.4°USC00512751
2011Dec65.3°F70.4°F-5.1°USR0000HPUW
2012Jan68.8°F68.8°F+0.0°USC00512751
2012Feb67.0°F69.0°F-1.9°USC00512751
2012Mar67.1°F69.5°F-2.4°USC00512751
2012Apr65.3°F69.8°F-4.5°USR0000HPUW
2012May67.7°F71.0°F-3.3°USC00512751
2012Jun69.2°F71.9°F-2.7°USC00512751
2012Jul70.4°F73.0°F-2.7°USC00512751
2012Aug71.2°F73.7°F-2.5°USC00512751
2012Sep71.0°F73.6°F-2.6°USC00512751
2012Oct71.6°F73.7°F-2.0°USC00512751
2012Nov66.8°F72.5°F-5.7°USR0000HPUW
2012Dec65.8°F70.4°F-4.6°USR0000HPUW
2013Jan68.5°F68.8°F-0.2°USC00512751
2013Feb66.4°F69.0°F-2.5°USC00512751
2013Mar67.5°F69.5°F-2.0°USC00512751
2013Apr68.1°F69.8°F-1.8°USC00512751
2013May69.6°F71.0°F-1.4°USC00512751
2013Jun69.7°F71.9°F-2.2°USC00512751
2013Jul69.9°F73.0°F-3.2°USC00512751
2013Aug71.0°F73.7°F-2.7°USC00512751
2013Sep71.3°F73.6°F-2.3°USC00512751
2013Oct69.3°F73.7°F-4.3°USR0000HPUW
2013Nov69.0°F72.5°F-3.5°USR0000HPUW
2013Dec67.6°F70.4°F-2.7°USR0000HPUW

Showing 896 of 896 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).

315

Initial gaps

311

Filled

4

Unfillable

Fill stations: KE AHOLE PT. 68.13, HI US, PUU WAAWAA HAWAII, HI US, KAILUA KONA KE AHOLE AIRPORT, HI US, PUUKOHOLA HEIAU 98.1, HI US, NAPOOPOO 28, HI US, KONA AIRPORT 68.3, 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: 1964 – 1989 (99.4% coverage)

MonthBaselineYears
January68.8°F26/26
February69.0°F26/26
March69.5°F26/26
April69.8°F25/26
May71.0°F26/26
June71.9°F26/26
July73.0°F26/26
August73.7°F25/26
September73.6°F26/26
October73.7°F26/26
November72.5°F26/26
December70.4°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 Kailua Kona, Hawaii getting warmer?

Based on 75+ years of NOAA temperature records, Kailua Kona has warmed at a rate of approximately 0.29°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 Kailua Kona?

The warmest year on record in Kailua Kona was 1986, based on average annual temperature anomaly from NOAA station data.

Where does the temperature data for Kailua Kona come from?

Data comes from the KAINALIU 73.2, HI US weather station, part of NOAA's Global Historical Climatology Network. This station has recorded 75+ years of temperature observations used to build Kailua Kona's climate profile.

How are the climate visualizations for Kailua Kona created?

Three visualizations are generated from Kailua Kona'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 Kailua Kona's temperature data?

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

Wear Kailua Kona's Climate Story

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

Shop Kailua Kona Climate Apparel →

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