Climate at a Glance

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Statewide 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

State: Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

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« December 1998

February 1999 »

Iowa

Average Temperature Rankings, January 1999

View Period (Months):All1234567891011121824364860

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• Record Coolest
• Bottom 1/10
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• Record Warmest

Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
January 1999 1-Month	17.0°F (-8.3°C)	17.7°F (-7.9°C)	-0.7°F (-0.4°C)	50th Coolest	Coolest since: 1997	1912
				79th Warmest	Warmest since: 1998	2006
Dec 1998–Jan 1999 2-Month	23.2°F (-4.9°C)	20.3°F (-6.5°C)	2.9°F (1.6°C)	87th Coolest	Coolest since: 1997	1918
				41st Warmest	Warmest since: 1998	2002
Nov 1998–Jan 1999 3-Month	29.0°F (-1.7°C)	25.4°F (-3.7°C)	3.6°F (2.0°C)	109th Coolest	Coolest since: 1998	1977
				19th Warmest	Warmest since: 1989	2002
	Ties: 1939, 1983
Oct 1998–Jan 1999 4-Month	35.0°F (1.7°C)	31.9°F (-0.1°C)	3.1°F (1.8°C)	109th Coolest	Coolest since: 1998	1977
				19th Warmest	Warmest since: 1964	2002
	Ties: 1954, 2007
Sep 1998–Jan 1999 5-Month	41.7°F (5.4°C)	38.2°F (3.4°C)	3.5°F (2.0°C)	120th Coolest	Coolest since: 1998	1977
				8th Warmest	Warmest since: 1939	1932
	Ties: 1923, 2012
Aug 1998–Jan 1999 6-Month	46.9°F (8.3°C)	43.7°F (6.5°C)	3.2°F (1.8°C)	120th Coolest	Coolest since: 1998	1918, 1977
				8th Warmest	Warmest since: 1939	1932
	Ties: 1923
Jul 1998–Jan 1999 7-Month	50.7°F (10.4°C)	48.0°F (8.9°C)	2.7°F (1.5°C)	117th Coolest	Coolest since: 1998	1918
				11th Warmest	Warmest since: 1942	1932
Jun 1998–Jan 1999 8-Month	52.8°F (11.6°C)	50.7°F (10.4°C)	2.1°F (1.2°C)	112th Coolest	Coolest since: 1998	1918
				16th Warmest	Warmest since: 1989	1932
	Ties: 1954
May 1998–Jan 1999 9-Month	54.1°F (12.3°C)	51.6°F (10.9°C)	2.5°F (1.4°C)	117th Coolest	Coolest since: 1998	1918
				11th Warmest	Warmest since: 1989	1932
	Ties: 2012, 2013, 2022
Apr 1998–Jan 1999 10-Month	53.7°F (12.1°C)	51.3°F (10.7°C)	2.4°F (1.4°C)	117th Coolest	Coolest since: 1998	1918
				11th Warmest	Warmest since: 1989	1932
	Ties: 2016
Mar 1998–Jan 1999 11-Month	51.8°F (11.0°C)	49.8°F (9.9°C)	2.0°F (1.1°C)	109th Coolest	Coolest since: 1998	1918
				19th Warmest	Warmest since: 1989	2013
	Ties: 2012
Feb 1998–Jan 1999 12-Month	50.4°F (10.2°C)	47.5°F (8.6°C)	2.9°F (1.6°C)	121st Coolest	Coolest since: 1998	1918
				7th Warmest	Warmest since: 1988	2013
	Ties: 1988
Aug 1997–Jan 1999 18-Month	48.6°F (9.2°C)	46.3°F (7.9°C)	2.3°F (1.3°C)	118th Coolest	Coolest since: 1998	1918
				9th Warmest	Warmest since: 1932	2013
Feb 1997–Jan 1999 24-Month	49.1°F (9.5°C)	47.5°F (8.6°C)	1.6°F (0.9°C)	110th Coolest	Coolest since: 1998	1952
				17th Warmest	Warmest since: 1989	1932
	Ties: 1955, 2002
Feb 1996–Jan 1999 36-Month	47.8°F (8.8°C)	47.5°F (8.6°C)	0.3°F (0.2°C)	77th Coolest	Coolest since: 1998	1918
				49th Warmest	Warmest since: 1993	1933, 2018
	Ties: 1916, 1947, 1983
Feb 1995–Jan 1999 48-Month	47.6°F (8.7°C)	47.5°F (8.6°C)	0.1°F (0.1°C)	72nd Coolest	Coolest since: 1998	1918
				53rd Warmest	Warmest since: 1993	1934, 2002
	Ties: 1915, 1931, 1967, 1984, 2010
Feb 1994–Jan 1999 60-Month	47.7°F (8.7°C)	47.5°F (8.6°C)	0.2°F (0.1°C)	74th Coolest	Coolest since: 1998	1907
				50th Warmest	Warmest since: 1993	1935
	Ties: 1946, 1947, 1956, 1978, 2011, 2012

Citing This Page

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