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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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« April 1991

June 1991 »

California River Basin

Average Temperature Rankings, May 1991

View Period (Months):All1234567891011121824364860

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Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
May 1991 1-Month	57.9°F (14.4°C)	60.7°F (15.9°C)	-2.8°F (-1.5°C)	19th Coolest	Coolest since: 1977	1977
				110th Warmest	Warmest since: 1990	2001
	Ties: 1942
Apr–May 1991 2-Month	55.3°F (12.9°C)	57.4°F (14.1°C)	-2.1°F (-1.2°C)	18th Coolest	Coolest since: 1975	1967
				111th Warmest	Warmest since: 1990	1992
Mar–May 1991 3-Month	51.8°F (11.0°C)	54.5°F (12.5°C)	-2.7°F (-1.5°C)	6th Coolest	Coolest since: 1975	1917
				123rd Warmest	Warmest since: 1990	1934
Feb–May 1991 4-Month	51.7°F (10.9°C)	52.2°F (11.2°C)	-0.5°F (-0.3°C)	49th Coolest	Coolest since: 1983	1917
				80th Warmest	Warmest since: 1990	1934
	Ties: 1906, 1932
Jan–May 1991 5-Month	50.1°F (10.1°C)	50.2°F (10.1°C)	-0.1°F (0.0°C)	59th Coolest	Coolest since: 1982	1917
				70th Warmest	Warmest since: 1990	2015
	Ties: 1906, 1916
Dec 1990–May 1991 6-Month	48.2°F (9.0°C)	49.1°F (9.5°C)	-0.9°F (-0.5°C)	32nd Coolest	Coolest since: 1979	1917
				96th Warmest	Warmest since: 1990	2015
	Ties: 1921
Nov 1990–May 1991 7-Month	48.4°F (9.1°C)	49.1°F (9.5°C)	-0.7°F (-0.4°C)	33rd Coolest	Coolest since: 1979	1917
				95th Warmest	Warmest since: 1990	2015
	Ties: 1942, 1967, 1998
Oct 1990–May 1991 8-Month	50.1°F (10.1°C)	50.4°F (10.2°C)	-0.3°F (-0.1°C)	44th Coolest	Coolest since: 1985	1917
				84th Warmest	Warmest since: 1990	2015
	Ties: 1897, 1902, 1908, 1910, 1925, 1935, 1974
Sep 1990–May 1991 9-Month	52.3°F (11.3°C)	52.4°F (11.3°C)	-0.1°F (0.0°C)	51st Coolest	Coolest since: 1985	1917
				77th Warmest	Warmest since: 1990	2015
	Ties: 1927, 1935, 1957
Aug 1990–May 1991 10-Month	54.4°F (12.4°C)	54.5°F (12.5°C)	-0.1°F (-0.1°C)	48th Coolest	Coolest since: 1985	1917
				80th Warmest	Warmest since: 1990	2015
	Ties: 1950, 1958, 1967, 1972, 1985, 1999
Jul 1990–May 1991 11-Month	56.4°F (13.6°C)	56.3°F (13.5°C)	0.1°F (0.1°C)	54th Coolest	Coolest since: 1983	1917
				74th Warmest	Warmest since: 1990	2015
	Ties: 1907, 1927, 1935, 1965, 1966, 1999
Jun 1990–May 1991 12-Month	57.5°F (14.2°C)	57.4°F (14.1°C)	0.1°F (0.1°C)	61st Coolest	Coolest since: 1985	1917
				67th Warmest	Warmest since: 1990	2015
	Ties: 1900, 1958, 1985
Dec 1989–May 1991 18-Month	55.0°F (12.8°C)	54.6°F (12.6°C)	0.4°F (0.2°C)	78th Coolest	Coolest since: 1983	1917
				49th Warmest	Warmest since: 1990	2015
	Ties: 1951, 1968
Jun 1989–May 1991 24-Month	57.8°F (14.3°C)	57.4°F (14.1°C)	0.4°F (0.2°C)	79th Coolest	Coolest since: 1984	1913, 1917
				48th Warmest	Warmest since: 1990	2015
	Ties: 1951, 1968, 1995
Jun 1988–May 1991 36-Month	58.1°F (14.5°C)	57.4°F (14.1°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1987	1913, 1917
				38th Warmest	Warmest since: 1990	2016
	Ties: 1987
Jun 1987–May 1991 48-Month	58.1°F (14.5°C)	57.4°F (14.1°C)	0.7°F (0.4°C)	88th Coolest	Coolest since: 1988	1913
				37th Warmest	Warmest since: 1990	2016, 2017, 2018
	Ties: 1981, 1988
Jun 1986–May 1991 60-Month	58.1°F (14.5°C)	57.3°F (14.1°C)	0.8°F (0.4°C)	90th Coolest	Coolest since: 1987	1913, 1917
				34th Warmest	Warmest since: 1990	2018
	Ties: 1961, 1962, 1963, 1982, 2002

Citing This Page

• NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, Average Temperature, published September 2022, retrieved on September 29, 2022 from https://www.ncdc.noaa.gov/cag/