Climate at a Glance

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Regional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2022. For more information, please see Climatological Rankings.

Parameter: Average Temperature Maximum Temperature Minimum Temperature Precipitation Cooling Degree Days Heating Degree Days Palmer Drought Severity Index (PDSI) Palmer Hydrological Drought Index (PHDI) Palmer Modified Drought Index (PMDI) Palmer Z-Index

Year: 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

Month: January February March April May June July August September October November December

Region: Ohio Valley Climate Region Upper Midwest Climate Region Northeast Climate Region Northwest Climate Region South Climate Region Southeast Climate Region Southwest Climate Region West Climate Region Northern Rockies and Plains Climate Region Great Plains Southern Plains and Gulf Coast Rockies and Westward Eastern NWS Region Southern NWS Region Central NWS Region Western NWS Region Arkansas-White-Red Basin California River Basin Great Basin Great Lakes Basin Lower Colorado River Basin Lower Mississippi River Basin Mid-Atlantic Basin Missouri River Basin New England Basin Ohio River Basin Pacific Northwest Basin Rio Grande River Basin Souris-Red-Rainy Basin South Atlantic-Gulf Basin Tennessee River Basin Texas Gulf Coast River Basin Upper Colorado River Basin Upper Mississippi River Basin Corn Belt Cotton Belt Primary Hard Red Winter Wheat Belt Primary Corn and Soybean Belt Soybean Belt Spring Wheat Belt Winter Wheat Belt Corn Belt Cotton Belt Soybean Belt Spring Wheat Belt Winter Wheat Belt

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« November 2009

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Ohio River Basin

Average Temperature Rankings, December 2009

View Period (Months):All1234567891011121824364860

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• Record Warmest

Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2021)	Warmest/Coolest Since	Record
December 2009 1-Month	32.1°F (0.1°C)	32.4°F (0.2°C)	-0.3°F (-0.1°C)	46th Coolest	Coolest since: 2005	1989
				82nd Warmest	Warmest since: 2008	2015
Nov–Dec 2009 2-Month	39.6°F (4.2°C)	37.3°F (2.9°C)	2.3°F (1.3°C)	96th Coolest	Coolest since: 2008	1976
				32nd Warmest	Warmest since: 2006	2015
	Ties: 1964, 1978
Oct–Dec 2009 3-Month	43.5°F (6.4°C)	42.9°F (6.1°C)	0.6°F (0.3°C)	71st Coolest	Coolest since: 2008	1917
				57th Warmest	Warmest since: 2007	2015
	Ties: 1912, 1978, 2005
Sep–Dec 2009 4-Month	49.1°F (9.5°C)	48.7°F (9.3°C)	0.4°F (0.2°C)	61st Coolest	Coolest since: 2008	1976
				67th Warmest	Warmest since: 2007	1931
Aug–Dec 2009 5-Month	53.6°F (12.0°C)	53.4°F (11.9°C)	0.2°F (0.1°C)	60th Coolest	Coolest since: 2008	1976
				68th Warmest	Warmest since: 2007	1931
	Ties: 1919, 2010
Jul–Dec 2009 6-Month	56.2°F (13.4°C)	56.8°F (13.8°C)	-0.6°F (-0.4°C)	33rd Coolest	Coolest since: 2000	1976
				95th Warmest	Warmest since: 2008	1931
	Ties: 1895, 1901, 1935
Jun–Dec 2009 7-Month	58.3°F (14.6°C)	58.7°F (14.8°C)	-0.4°F (-0.2°C)	35th Coolest	Coolest since: 2000	1976
				93rd Warmest	Warmest since: 2008	1931
	Ties: 1943, 2014
May–Dec 2009 8-Month	58.8°F (14.9°C)	59.1°F (15.1°C)	-0.3°F (-0.2°C)	41st Coolest	Coolest since: 2008	1917
				87th Warmest	Warmest since: 2007	1931
	Ties: 1927, 1943, 1983
Apr–Dec 2009 9-Month	58.1°F (14.5°C)	58.2°F (14.6°C)	-0.1°F (-0.1°C)	44th Coolest	Coolest since: 2008	1917
				84th Warmest	Warmest since: 2008	2015
	Ties: 1898, 1932, 1940, 1980, 2008
Mar–Dec 2009 10-Month	56.8°F (13.8°C)	56.5°F (13.6°C)	0.3°F (0.2°C)	65th Coolest	Coolest since: 2008	1917
				63rd Warmest	Warmest since: 2007	2016
	Ties: 1952
Feb–Dec 2009 11-Month	54.7°F (12.6°C)	54.3°F (12.4°C)	0.4°F (0.2°C)	74th Coolest	Coolest since: 2008	1917
				54th Warmest	Warmest since: 2007	2012
	Ties: 1925, 1944, 1970, 1971, 1984
Jan–Dec 2009 12-Month	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	58th Coolest	Coolest since: 2008	1917
				70th Warmest	Warmest since: 2007	2012
	Ties: 1899, 1974, 1983, 1995, 2013
Jul 2008–Dec 2009 18-Month	53.6°F (12.0°C)	53.7°F (12.1°C)	-0.1°F (-0.1°C)	46th Coolest	Coolest since: 1997	1904, 1917
				81st Warmest	Warmest since: 2008	2012, 2016
	Ties: 1899
Jan 2008–Dec 2009 24-Month	52.2°F (11.2°C)	52.2°F (11.2°C)	0.0°F (0.0°C)	59th Coolest	Coolest since: 1997	1979
				68th Warmest	Warmest since: 2008	2017
	Ties: 1901, 1928, 1984, 1995
Jan 2007–Dec 2009 36-Month	52.8°F (11.6°C)	52.1°F (11.2°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1998	1980
				38th Warmest	Warmest since: 2008	2018
	Ties: 1900, 1940, 1957, 1975, 1993, 2014
Jan 2006–Dec 2009 48-Month	53.1°F (11.7°C)	52.2°F (11.2°C)	0.9°F (0.5°C)	103rd Coolest	Coolest since: 2003	1979
				22nd Warmest	Warmest since: 2008	2019
	Ties: 1923, 1954, 2014
Jan 2005–Dec 2009 60-Month	53.2°F (11.8°C)	52.2°F (11.2°C)	1.0°F (0.6°C)	107th Coolest	Coolest since: 2004	1980
				17th Warmest	Warmest since: 2008	2020
	Ties: 1933, 1957, 2003, 2015, 2017

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, Average Temperature, published September 2022, retrieved on October 2, 2022 from https://www.ncdc.noaa.gov/cag/