Statewide Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Colorado

Average Temperature Rankings, December 2009

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2021)	Warmest/Coolest Since	Record
December 2009 1-Month	20.4°F (-6.4°C)	25.2°F (-3.8°C)	-4.8°F (-2.6°C)	13th Coolest	Coolest since: 1990	1909
December 2009 1-Month	20.4°F (-6.4°C)	25.2°F (-3.8°C)	-4.8°F (-2.6°C)	115th Warmest	Warmest since: 2008	1980
Nov–Dec 2009 2-Month	29.1°F (-1.6°C)	29.4°F (-1.4°C)	-0.3°F (-0.2°C)	52nd Coolest	Coolest since: 2000	1972
Nov–Dec 2009 2-Month	29.1°F (-1.6°C)	29.4°F (-1.4°C)	-0.3°F (-0.2°C)	76th Warmest	Warmest since: 2008	2021
Oct–Dec 2009 3-Month	33.0°F (0.6°C)	35.1°F (1.7°C)	-2.1°F (-1.1°C)	14th Coolest	Coolest since: 1972	1898
Oct–Dec 2009 3-Month	33.0°F (0.6°C)	35.1°F (1.7°C)	-2.1°F (-1.1°C)	114th Warmest	Warmest since: 2008	2021
Sep–Dec 2009 4-Month	39.2°F (4.0°C)	40.7°F (4.8°C)	-1.5°F (-0.8°C)	22nd Coolest	Coolest since: 1993	1898
	39.2°F (4.0°C)	40.7°F (4.8°C)	-1.5°F (-0.8°C)	106th Warmest	Warmest since: 2008	2021
	Ties: 1920
Aug–Dec 2009 5-Month	44.3°F (6.8°C)	45.6°F (7.6°C)	-1.3°F (-0.8°C)	25th Coolest	Coolest since: 1993	1898
	44.3°F (6.8°C)	45.6°F (7.6°C)	-1.3°F (-0.8°C)	103rd Warmest	Warmest since: 2008	2021
	Ties: 1992
Jul–Dec 2009 6-Month	48.0°F (8.9°C)	49.1°F (9.5°C)	-1.1°F (-0.6°C)	21st Coolest	Coolest since: 1993	1912
	48.0°F (8.9°C)	49.1°F (9.5°C)	-1.1°F (-0.6°C)	107th Warmest	Warmest since: 2008	2021
	Ties: 1905, 1925, 1927, 1951, 1985
Jun–Dec 2009 7-Month	49.7°F (9.8°C)	50.8°F (10.4°C)	-1.1°F (-0.6°C)	17th Coolest	Coolest since: 1993	1912
	49.7°F (9.8°C)	50.8°F (10.4°C)	-1.1°F (-0.6°C)	111th Warmest	Warmest since: 2008	2021
	Ties: 1909, 1924, 1927, 1929, 1930
May–Dec 2009 8-Month	50.3°F (10.2°C)	51.0°F (10.6°C)	-0.7°F (-0.4°C)	31st Coolest	Coolest since: 1993	1912
	50.3°F (10.2°C)	51.0°F (10.6°C)	-0.7°F (-0.4°C)	97th Warmest	Warmest since: 2008	2021
	Ties: 1904, 1918, 1919, 1945, 1975, 1982
Apr–Dec 2009 9-Month	49.4°F (9.7°C)	50.0°F (10.0°C)	-0.6°F (-0.3°C)	33rd Coolest	Coolest since: 1993	1912
	49.4°F (9.7°C)	50.0°F (10.0°C)	-0.6°F (-0.3°C)	95th Warmest	Warmest since: 2008	2021
	Ties: 1906, 1930, 1970
Mar–Dec 2009 10-Month	48.2°F (9.0°C)	48.4°F (9.1°C)	-0.2°F (-0.1°C)	48th Coolest	Coolest since: 1993	1912
	48.2°F (9.0°C)	48.4°F (9.1°C)	-0.2°F (-0.1°C)	80th Warmest	Warmest since: 2008	2012
	Ties: 1897, 1902, 1967, 1979
Feb–Dec 2009 11-Month	46.7°F (8.2°C)	46.5°F (8.1°C)	0.2°F (0.1°C)	67th Coolest	Coolest since: 1997	1912
	46.7°F (8.2°C)	46.5°F (8.1°C)	0.2°F (0.1°C)	61st Warmest	Warmest since: 2008	2012, 2017
	Ties: 1907, 1926, 1974, 1997
Jan–Dec 2009 12-Month	45.2°F (7.3°C)	44.6°F (7.0°C)	0.6°F (0.3°C)	82nd Coolest	Coolest since: 2008	1912
	45.2°F (7.3°C)	44.6°F (7.0°C)	0.6°F (0.3°C)	46th Warmest	Warmest since: 2007	2012
	Ties: 1935, 1950, 1987
Jul 2008–Dec 2009 18-Month	47.0°F (8.3°C)	46.1°F (7.8°C)	0.9°F (0.5°C)	96th Coolest	Coolest since: 2008	1912
	47.0°F (8.3°C)	46.1°F (7.8°C)	0.9°F (0.5°C)	31st Warmest	Warmest since: 2008	1934
	Ties: 1938, 1989, 1990, 2008, 2019
Jan 2008–Dec 2009 24-Month	45.1°F (7.3°C)	44.6°F (7.0°C)	0.5°F (0.3°C)	78th Coolest	Coolest since: 1993	1913
	45.1°F (7.3°C)	44.6°F (7.0°C)	0.5°F (0.3°C)	49th Warmest	Warmest since: 2008	2017
	Ties: 1922, 1959
Jan 2007–Dec 2009 36-Month	45.4°F (7.4°C)	44.5°F (6.9°C)	0.9°F (0.5°C)	94th Coolest	Coolest since: 1997	1913, 1914
	45.4°F (7.4°C)	44.5°F (6.9°C)	0.9°F (0.5°C)	32nd Warmest	Warmest since: 2008	2017
	Ties: 1981, 1990, 1997, 2010
Jan 2006–Dec 2009 48-Month	45.7°F (7.6°C)	44.6°F (7.0°C)	1.1°F (0.6°C)	103rd Coolest	Coolest since: 1998	1915
	45.7°F (7.6°C)	44.6°F (7.0°C)	1.1°F (0.6°C)	22nd Warmest	Warmest since: 2008	2018
	Ties: 1937, 1997
Jan 2005–Dec 2009 60-Month	45.9°F (7.7°C)	44.5°F (6.9°C)	1.4°F (0.8°C)	104th Coolest	Coolest since: 1999	1916
Jan 2005–Dec 2009 60-Month	45.9°F (7.7°C)	44.5°F (6.9°C)	1.4°F (0.8°C)	20th Warmest	Warmest since: 2008	2018

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published November 2022, retrieved on December 4, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings