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 December 2019. For more information, please see Climatological Rankings.


Iowa

Average Temperature Rankings, September 1998

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1998
1-Month
68.2°F
(20.1°C)
63.0°F
(17.2°C)
5.2°F
(2.9°C)
121st Coolest Coolest since: 1997 1896, 1993
5th Warmest Warmest since: 1939 1897, 1931
Ties: 1939, 2019
Aug–Sep 1998
2-Month
70.6°F
(21.4°C)
67.2°F
(19.6°C)
3.4°F
(1.8°C)
119th Coolest Coolest since: 1997 1974, 1992
7th Warmest Warmest since: 1983 1947
Jul–Sep 1998
3-Month
71.6°F
(22.0°C)
69.4°F
(20.8°C)
2.2°F
(1.2°C)
113th Coolest Coolest since: 1997 1992
13th Warmest Warmest since: 1988 1936
Ties: 1921
Jun–Sep 1998
4-Month
70.5°F
(21.4°C)
69.3°F
(20.7°C)
1.2°F
(0.7°C)
94th Coolest Coolest since: 1997 1915
32nd Warmest Warmest since: 1988 1936
Ties: 1948, 1953, 1987
May–Sep 1998
5-Month
69.4°F
(20.8°C)
67.4°F
(19.7°C)
2.0°F
(1.1°C)
110th Coolest Coolest since: 1997 1915
16th Warmest Warmest since: 1988 1936
Apr–Sep 1998
6-Month
66.1°F
(18.9°C)
64.2°F
(17.9°C)
1.9°F
(1.0°C)
110th Coolest Coolest since: 1997 1907
16th Warmest Warmest since: 1988 1936
Ties: 1939
Mar–Sep 1998
7-Month
61.4°F
(16.3°C)
60.0°F
(15.6°C)
1.4°F
(0.7°C)
100th Coolest Coolest since: 1997 1951
26th Warmest Warmest since: 1991 2012
Ties: 1922, 1963
Feb–Sep 1998
8-Month
58.0°F
(14.4°C)
55.3°F
(12.9°C)
2.7°F
(1.5°C)
115th Coolest Coolest since: 1997 1950
11th Warmest Warmest since: 1991 2012
Jan–Sep 1998
9-Month
54.2°F
(12.3°C)
51.2°F
(10.7°C)
3.0°F
(1.6°C)
121st Coolest Coolest since: 1997 1912
5th Warmest Warmest since: 1987 2012
Dec 1997–Sep 1998
10-Month
51.5°F
(10.8°C)
48.3°F
(9.1°C)
3.2°F
(1.7°C)
119th Coolest Coolest since: 1997 1979
6th Warmest Warmest since: 1987 2012
Nov 1997–Sep 1998
11-Month
49.8°F
(9.9°C)
47.1°F
(8.4°C)
2.7°F
(1.5°C)
114th Coolest Coolest since: 1997 1912
11th Warmest Warmest since: 1987 2012
Oct 1997–Sep 1998
12-Month
50.0°F
(10.0°C)
47.5°F
(8.6°C)
2.5°F
(1.4°C)
115th Coolest Coolest since: 1997 1912
10th Warmest Warmest since: 1987 2012
Apr 1997–Sep 1998
18-Month
54.2°F
(12.3°C)
53.1°F
(11.7°C)
1.1°F
(0.6°C)
96th Coolest Coolest since: 1997 1951
29th Warmest Warmest since: 1988 2012
Ties: 1941, 2013
Oct 1996–Sep 1998
24-Month
48.1°F
(8.9°C)
47.6°F
(8.7°C)
0.5°F
(0.2°C)
85th Coolest Coolest since: 1997 1979
39th Warmest Warmest since: 1992 2017
Oct 1995–Sep 1998
36-Month
47.2°F
(8.4°C)
47.5°F
(8.6°C)
-0.3°F
(-0.2°C)
41st Coolest Coolest since: 1997 1979
82nd Warmest Warmest since: 1993 2000
Ties: 1909, 1914, 1950, 1958, 1981
Oct 1994–Sep 1998
48-Month
47.5°F
(8.6°C)
47.4°F
(8.6°C)
0.1°F
(0.0°C)
58th Coolest Coolest since: 1997 1905, 1918
64th Warmest Warmest since: 1993 1934
Ties: 1984
Oct 1993–Sep 1998
60-Month
47.3°F
(8.5°C)
47.4°F
(8.6°C)
-0.1°F
(-0.1°C)
47th Coolest Coolest since: 1997 1906, 1907
74th Warmest Warmest since: 1995 2002
Ties: 1910, 1915, 1967, 1968, 1983

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 25, 2020 from https://www.ncdc.noaa.gov/cag/