Wyoming

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Climate Stripes

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Mean Rate of Change ( °C / Century )

Since:	1760	1810	1860	1910	1960	1990
Wyoming	-	0.64 ± 0.26	0.72 ± 0.18	1.03 ± 0.10	1.88 ± 0.29	2.76 ± 0.34
Contiguous United States	-	0.66 ± 0.25	0.76 ± 0.18	0.87 ± 0.08	2.16 ± 0.16	2.76 ± 0.36
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	1953	1954	1910	1915	1934	1988	2007	2003	1998	1963	1999	1980	2012
2	1981	1991	2012	1930	1865	2016	2003	2020	2015	2015	1949	1939	1934
3	2003	1992	2017	1943	1958	1933	2006	1983	1990	1950	2016	1933	2015
4	2006	1963	1986	1946	1936	2012	2012	2001	1963	1988	1917	1896	2016
5	1983	2016	2007	1910	1886	2015	1936	2000	1979	1947	1954	1906	1981
6	1934	1930	2015	1987	1994	1918	2002	2013	2001	2003	2008	1957	2007
7	1986	2000	2004	1888	1901	1977	2017	2011	2012	2010	1965	1890	2017
8	2015	1970	1992	2012	1897	1900	1954	1969	2009	1965	1904	1875	2006
9	1965	1934	1972	1992	2018	2006	1966	2012	1940	1934	2012	1950	1999
10	2018	1907	1878	1981	1939	1931	1886	1971	1938	2014	1953	1946	2001

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	1937	1899	1965	1920	1917	1951	1993	1927	1965	1919	1880	1983	1880
2	1930	1936	1912	1945	1950	1945	1915	1968	1912	2019	1985	1909	1843
3	1949	1883	1917	1970	1935	1998	1992	1908	1961	1925	2000	1932	1912
4	1979	1903	1906	1975	1907	1915	1950	1993	1985	1969	1896	1978	1875
5	1916	1929	1875	1909	1892	1928	1902	1870	1903	2009	1872	1884	1899
6	1963	1939	1924	1973	1953	1947	1958	1974	1926	1883	1886	1990	1884
7	1957	1894	1899	1997	2010	1908	1895	1912	1929	1873	1929	1927	1916
8	1890	1933	1891	1918	1995	1907	1904	1911	1868	1898	1947	1916	1849
9	1922	1989	1964	1983	1873	1969	1912	1907	1986	1905	1955	1924	1929
10	1929	1913	1897	1917	1909	1895	1911	1899	1941	1923	1938	1914	1848

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
	± 3.23	± 1.11	± 0.47	± 0.32	± 0.21

Correlation to Global Land Average (R value)

Smoothing	Monthly	Annual	Five-year	Ten-year	Twenty-year
	0.42	0.63	0.86	0.92	0.96

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

Jan	Feb	Mar	Apr	May	Jun
± 4.60	± 4.69	± 4.07	± 3.07	± 2.70	± 2.69
Jul	Aug	Sep	Oct	Nov	Dec
± 2.05	± 1.98	± 2.56	± 2.90	± 3.87	± 4.32

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

Wyoming Global Context Map

Wyoming Local Context Map

Land Area:	247,000 km²
Percent of Global Land Area:	0.17%

Active Stations:	230
Former Stations:	201
Monthly Mean Observations:	181,721
Earliest Observation:	September 1866

Active Stations:	2,060
Former Stations:	1,706
Monthly Mean Observations:	1,619,828
Earliest Observation:	February 1864

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