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


Iowa

Average Temperature Rankings, September 1991

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1991
1-Month
62.4°F
(16.9°C)
63.0°F
(17.2°C)
-0.6°F
(-0.3°C)
50th Coolest Coolest since: 1989 1896, 1993
76th Warmest Warmest since: 1990 1897, 1931
Ties: 1901, 1910, 1976
Aug–Sep 1991
2-Month
67.0°F
(19.4°C)
67.2°F
(19.6°C)
-0.2°F
(-0.2°C)
59th Coolest Coolest since: 1989 1974, 1992
67th Warmest Warmest since: 1990 1947
Ties: 1944, 1972
Jul–Sep 1991
3-Month
69.2°F
(20.7°C)
69.4°F
(20.8°C)
-0.2°F
(-0.1°C)
53rd Coolest Coolest since: 1989 1992
73rd Warmest Warmest since: 1990 1936
Ties: 1899, 1932
Jun–Sep 1991
4-Month
70.2°F
(21.2°C)
69.4°F
(20.8°C)
0.8°F
(0.4°C)
86th Coolest Coolest since: 1990 1915
40th Warmest Warmest since: 1988 1936
Ties: 1935, 1963
May–Sep 1991
5-Month
69.0°F
(20.6°C)
67.5°F
(19.7°C)
1.5°F
(0.9°C)
105th Coolest Coolest since: 1990 1915
21st Warmest Warmest since: 1988 1936
Ties: 1913, 1980, 1983
Apr–Sep 1991
6-Month
66.0°F
(18.9°C)
64.2°F
(17.9°C)
1.8°F
(1.0°C)
108th Coolest Coolest since: 1990 1907
18th Warmest Warmest since: 1988 1936
Ties: 1911
Mar–Sep 1991
7-Month
62.2°F
(16.8°C)
60.0°F
(15.6°C)
2.2°F
(1.2°C)
114th Coolest Coolest since: 1990 1951
12th Warmest Warmest since: 1988 2012
Ties: 1938
Feb–Sep 1991
8-Month
58.1°F
(14.5°C)
55.4°F
(13.0°C)
2.7°F
(1.5°C)
119th Coolest Coolest since: 1990 1950
7th Warmest Warmest since: 1987 2012
Ties: 1930, 2000, 2005
Jan–Sep 1991
9-Month
53.1°F
(11.7°C)
51.1°F
(10.6°C)
2.0°F
(1.1°C)
109th Coolest Coolest since: 1989 1912
17th Warmest Warmest since: 1990 2012
Ties: 1925, 1939
Dec 1990–Sep 1991
10-Month
49.8°F
(9.9°C)
48.3°F
(9.1°C)
1.5°F
(0.8°C)
97th Coolest Coolest since: 1990 1979
28th Warmest Warmest since: 1988 2012
Nov 1990–Sep 1991
11-Month
49.0°F
(9.4°C)
47.2°F
(8.4°C)
1.8°F
(1.0°C)
103rd Coolest Coolest since: 1990 1912
22nd Warmest Warmest since: 1988 2012
Ties: 1932, 1983
Oct 1990–Sep 1991
12-Month
49.1°F
(9.5°C)
47.5°F
(8.6°C)
1.6°F
(0.9°C)
100th Coolest Coolest since: 1990 1912
25th Warmest Warmest since: 1988 2012
Apr 1990–Sep 1991
18-Month
54.1°F
(12.3°C)
53.1°F
(11.7°C)
1.0°F
(0.6°C)
93rd Coolest Coolest since: 1990 1951
32nd Warmest Warmest since: 1988 2012
Ties: 1933
Oct 1989–Sep 1991
24-Month
48.8°F
(9.3°C)
47.5°F
(8.6°C)
1.3°F
(0.7°C)
102nd Coolest Coolest since: 1990 1979
22nd Warmest Warmest since: 1988 2017
Ties: 1901, 1914, 1954, 1987
Oct 1988–Sep 1991
36-Month
48.3°F
(9.1°C)
47.5°F
(8.6°C)
0.8°F
(0.5°C)
88th Coolest Coolest since: 1986 1979
35th Warmest Warmest since: 1990 2000
Ties: 1936
Oct 1987–Sep 1991
48-Month
48.6°F
(9.2°C)
47.5°F
(8.6°C)
1.1°F
(0.6°C)
101st Coolest Coolest since: 1989 1905, 1918
21st Warmest Warmest since: 1990 1934
Ties: 1989, 2012, 2017
Oct 1986–Sep 1991
60-Month
49.0°F
(9.4°C)
47.5°F
(8.6°C)
1.5°F
(0.8°C)
116th Coolest Coolest since: 1990 1906, 1907
5th Warmest Warmest since: 1935 2002
Ties: 2003, 2007

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on December 5, 2019 from https://www.ncdc.noaa.gov/cag/