Hawaii

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Climate Stripes

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Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Hawaii	-	-	-	1.00 ± 0.17	1.21 ± 0.60	-1.02 ± 0.86
United States	-	0.69 ± 0.24	0.80 ± 0.16	0.89 ± 0.08	2.36 ± 0.13	2.42 ± 0.39
North America	-	0.82 ± 0.23	1.02 ± 0.18	1.11 ± 0.11	2.90 ± 0.19	4.72 ± 0.28
Northern Hemisphere	-	0.79 ± 0.16	0.96 ± 0.10	1.19 ± 0.05	2.56 ± 0.20	3.56 ± 0.20
Global Land	0.43 ± 0.18	0.79 ± 0.13	0.91 ± 0.08	1.11 ± 0.03	2.16 ± 0.11	2.78 ± 0.13

Temperature Record Months and Years

Hottest Monthly and Annual Averages

Rank	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
1	2020	2004	2017	2016	2005	2019	2015	2015	2019	2019	2015	2019	2015
2	1996	2014	1986	2018	2004	1996	2019	2019	2015	2015	2019	1995	2019
3	2006	2015	1984	2017	1996	2017	2018	2018	1987	1996	2020	2020	2020
4	2001	2011	2003	1996	2019	2020	2016	1986	2018	2009	2006	2015	2018
5	2010	1938	2011	2015	2020	1997	2017	2016	1986	2014	1991	1987	2004
6	2005	1988	2008	2019	2017	2004	1996	2004	2014	2003	1988	1992	2016
7	2007	1991	1988	2020	2016	2016	2003	2017	2004	2020	1968	2005	1986
8	1974	1997	2006	2002	2002	2002	1994	2003	2005	1984	1986	1942	1996
9	2016	2016	2007	1986	2018	2018	2020	1987	2016	2018	1995	1988	2017
10	2012	2018	1995	2011	2003	2009	2005	2020	1997	2004	1996	2013	2005

Months and years with an estimated uncertainty greater than 1 °C are omitted.

Coldest Monthly and Annual Averages

Rank	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
1	1905	1965	1903	1934	1952	1955	1955	1955	1955	1955	1949	1902	1955
2	1885	1891	1942	1884	1884	1933	1933	1933	1933	1933	1883	1908	1933
3	1886	1901	1912	1907	1955	1910	1909	1916	1909	1911	1890	1931	1903
4	1910	1915	1898	1942	1936	1976	1975	1909	1916	1902	1933	1892	1910
5	1914	1957	1909	1918	1885	1939	1910	1949	1952	1908	1887	1936	1909
6	1895	1898	1896	1925	1933	1975	1976	1887	1908	1910	1902	1914	1894
7	1903	1910	1888	1933	1910	1952	1939	1910	1921	1949	1939	1965	1898
8	1924	1922	1955	1949	1887	1956	1908	1924	1939	1924	1884	1910	1887
9	1911	1973	1957	1952	1958	1908	1916	1890	1949	1887	1894	1948	1949
10	1972	1911	1895	1926	1925	1916	1949	1908	1911	1901	1920	1950	1884

Months and years with an estimated uncertainty greater than 1 °C are omitted.

Seasonal Changes

Regional Climate Variability

Difference from Global Land Average ( °C, 95% range )

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	± 1.06	± 0.58	± 0.35	± 0.25	± 0.17

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.52	0.78	0.90	0.94	0.97

Variability in Monthly Means ( °C, 95% range )

Jan	Feb	Mar	Apr	May	Jun
± 0.94	± 1.05	± 0.96	± 0.83	± 0.81	± 0.71
Jul	Aug	Sep	Oct	Nov	Dec
± 0.69	± 0.70	± 0.70	± 0.67	± 0.72	± 0.82

History of Temperature Stations

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Evolution of Climate Extremes

Mean of Daily High Temperature

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Mean of Daily Low Temperature

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Change in Diurnal Range

Hawaii Global Context Map

Hawaii Local Context Map

Land Area:	15,000 km²
Percent of Global Land Area:	0.01%

Active Stations:	65
Former Stations:	164
Monthly Mean Observations:	63,125
Earliest Observation:	January 1883

Active Stations:	74
Former Stations:	191
Monthly Mean Observations:	73,917
Earliest Observation:	January 1883

Dataset Updated:	15-Nov-2013 16:20:30
Temperature Sites:	40,747
Monthly Mean Observations:	15,717,007
Most Recent Month:	October 2013
Earliest Month:	January 1701