Climate at a Glance

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 July 2020. For more information, please see Climatological Rankings.


Iowa

Average Temperature Rankings, May 1999

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
May 1999
1-Month
60.5°F
(15.8°C)
59.8°F
(15.4°C)
0.7°F
(0.4°C)
76th Coolest Coolest since: 1997 1907
51st Warmest Warmest since: 1998 1934
Apr–May 1999
2-Month
55.2°F
(12.9°C)
53.9°F
(12.2°C)
1.3°F
(0.7°C)
88th Coolest Coolest since: 1997 1907
39th Warmest Warmest since: 1998 1977
Ties: 1902, 1911, 1930, 1963, 1969, 1980
Mar–May 1999
3-Month
48.9°F
(9.4°C)
47.5°F
(8.6°C)
1.4°F
(0.8°C)
87th Coolest Coolest since: 1997 1960
40th Warmest Warmest since: 1998 2012
Ties: 1930, 1976
Feb–May 1999
4-Month
44.9°F
(7.2°C)
41.3°F
(5.2°C)
3.6°F
(2.0°C)
115th Coolest Coolest since: 1997 1899
12th Warmest Warmest since: 1998 2012
Jan–May 1999
5-Month
39.3°F
(4.1°C)
36.6°F
(2.6°C)
2.7°F
(1.5°C)
108th Coolest Coolest since: 1997 1979
19th Warmest Warmest since: 1998 2012
Ties: 1938, 1977
Dec 1998–May 1999
6-Month
37.7°F
(3.2°C)
34.3°F
(1.3°C)
3.4°F
(1.9°C)
116th Coolest Coolest since: 1997 1979
10th Warmest Warmest since: 1998 2012
Ties: 1931
Nov 1998–May 1999
7-Month
38.1°F
(3.4°C)
34.5°F
(1.4°C)
3.6°F
(2.0°C)
117th Coolest Coolest since: 1998 1979
9th Warmest Warmest since: 1987 2012
Oct 1998–May 1999
8-Month
40.0°F
(4.4°C)
36.6°F
(2.6°C)
3.4°F
(1.8°C)
118th Coolest Coolest since: 1998 1899, 1979
8th Warmest Warmest since: 1987 2012
Ties: 2006
Sep 1998–May 1999
9-Month
43.1°F
(6.2°C)
39.5°F
(4.2°C)
3.6°F
(2.0°C)
119th Coolest Coolest since: 1998 1899
7th Warmest Warmest since: 1987 2012
Ties: 2006
Aug 1998–May 1999
10-Month
46.1°F
(7.8°C)
42.7°F
(5.9°C)
3.4°F
(1.9°C)
121st Coolest Coolest since: 1998 1899
5th Warmest Warmest since: 1921 2012
Ties: 1921
Jul 1998–May 1999
11-Month
48.6°F
(9.2°C)
45.6°F
(7.6°C)
3.0°F
(1.6°C)
121st Coolest Coolest since: 1998 1899
5th Warmest Warmest to Date 2012
Jun 1998–May 1999
12-Month
50.2°F
(10.1°C)
47.6°F
(8.7°C)
2.6°F
(1.4°C)
118th Coolest Coolest since: 1998 1904
8th Warmest Warmest since: 1987 2012
Ties: 1921
Dec 1997–May 1999
18-Month
46.4°F
(8.0°C)
43.1°F
(6.2°C)
3.3°F
(1.8°C)
123rd Coolest Coolest since: 1998 1979
2nd Warmest Warmest since: 1932 2017
Ties: 1932, 2000
Jun 1997–May 1999
24-Month
49.9°F
(9.9°C)
47.5°F
(8.6°C)
2.4°F
(1.3°C)
119th Coolest Coolest since: 1998 1905
6th Warmest Warmest since: 1932 2017
Jun 1996–May 1999
36-Month
48.4°F
(9.1°C)
47.5°F
(8.6°C)
0.9°F
(0.5°C)
93rd Coolest Coolest since: 1998 1905, 1918
31st Warmest Warmest since: 1992 2000
Ties: 1987, 1988, 1990
Jun 1995–May 1999
48-Month
47.9°F
(8.8°C)
47.5°F
(8.6°C)
0.4°F
(0.2°C)
80th Coolest Coolest since: 1998 1907
43rd Warmest Warmest since: 1992 1934
Ties: 1903, 1925, 1939, 1945, 1977
Jun 1994–May 1999
60-Month
47.9°F
(8.8°C)
47.4°F
(8.6°C)
0.5°F
(0.2°C)
75th Coolest Coolest since: 1998 1907, 1997
47th Warmest Warmest since: 1993 1935

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2020, retrieved on August 6, 2020 from https://www.ncdc.noaa.gov/cag/