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


Iowa

Average Temperature Rankings, September 1930

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1930
1-Month
65.2°F
(18.4°C)
63.0°F
(17.2°C)
2.2°F
(1.2°C)
94th Coolest Coolest since: 1929 1896, 1993
32nd Warmest Warmest since: 1927 1897, 1931
Ties: 1954
Aug–Sep 1930
2-Month
69.4°F
(20.8°C)
67.2°F
(19.6°C)
2.2°F
(1.2°C)
108th Coolest Coolest since: 1929 1974, 1992
18th Warmest Warmest since: 1925 1947
Ties: 1905, 1922, 1978, 2007, 2013
Jul–Sep 1930
3-Month
72.0°F
(22.2°C)
69.4°F
(20.8°C)
2.6°F
(1.4°C)
117th Coolest Coolest since: 1929 1992
9th Warmest Warmest since: 1901 1936
Ties: 1988
Jun–Sep 1930
4-Month
71.1°F
(21.7°C)
69.3°F
(20.7°C)
1.8°F
(1.0°C)
107th Coolest Coolest since: 1929 1915
19th Warmest Warmest since: 1921 1936
Ties: 1914, 1939
May–Sep 1930
5-Month
68.8°F
(20.4°C)
67.5°F
(19.7°C)
1.3°F
(0.7°C)
100th Coolest Coolest since: 1929 1915
26th Warmest Warmest since: 1922 1936
Ties: 1922, 1938, 2005
Apr–Sep 1930
6-Month
65.8°F
(18.8°C)
64.2°F
(17.9°C)
1.6°F
(0.9°C)
106th Coolest Coolest since: 1929 1907
20th Warmest Warmest since: 1925 1936
Ties: 1925, 2016
Mar–Sep 1930
7-Month
61.6°F
(16.4°C)
60.0°F
(15.6°C)
1.6°F
(0.8°C)
103rd Coolest Coolest since: 1929 1951
23rd Warmest Warmest since: 1925 2012
Ties: 1910, 1986
Feb–Sep 1930
8-Month
58.1°F
(14.5°C)
55.3°F
(12.9°C)
2.8°F
(1.6°C)
119th Coolest Coolest since: 1929 1950
7th Warmest Warmest since: 1921 2012
Ties: 1991, 2000, 2005
Jan–Sep 1930
9-Month
52.6°F
(11.4°C)
51.1°F
(10.6°C)
1.5°F
(0.8°C)
95th Coolest Coolest since: 1929 1912
31st Warmest Warmest since: 1925 2012
Ties: 1964, 1999, 2007
Dec 1929–Sep 1930
10-Month
49.7°F
(9.8°C)
48.4°F
(9.1°C)
1.3°F
(0.7°C)
96th Coolest Coolest since: 1929 1979
29th Warmest Warmest since: 1921 2012
Ties: 1932
Nov 1929–Sep 1930
11-Month
47.9°F
(8.8°C)
47.1°F
(8.4°C)
0.8°F
(0.4°C)
85th Coolest Coolest since: 1929 1912
40th Warmest Warmest since: 1925 2012
Ties: 1901, 1953, 1964, 2004
Oct 1929–Sep 1930
12-Month
48.2°F
(9.0°C)
47.6°F
(8.7°C)
0.6°F
(0.3°C)
83rd Coolest Coolest since: 1929 1912
42nd Warmest Warmest since: 1925 2012
Ties: 1908, 1957
Apr 1929–Sep 1930
18-Month
53.2°F
(11.8°C)
53.1°F
(11.7°C)
0.1°F
(0.1°C)
69th Coolest Coolest since: 1929 1951
56th Warmest Warmest since: 1923 2012
Oct 1928–Sep 1930
24-Month
47.2°F
(8.4°C)
47.5°F
(8.6°C)
-0.3°F
(-0.2°C)
44th Coolest Coolest since: 1929 1979
80th Warmest Warmest since: 1928 2017
Ties: 1908, 1910, 1928, 1944, 1968, 1975, 2010
Oct 1927–Sep 1930
36-Month
47.3°F
(8.5°C)
47.5°F
(8.6°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1929 1979
76th Warmest Warmest since: 1927 2000
Ties: 1901, 1903, 1908, 1937, 1968, 1975, 2011
Oct 1926–Sep 1930
48-Month
47.2°F
(8.4°C)
47.5°F
(8.6°C)
-0.3°F
(-0.2°C)
40th Coolest Coolest since: 1929 1905, 1918
82nd Warmest Warmest since: 1928 1934
Ties: 1910, 1926, 1959, 1967, 1974, 1994
Oct 1925–Sep 1930
60-Month
47.0°F
(8.3°C)
47.4°F
(8.6°C)
-0.4°F
(-0.3°C)
25th Coolest Coolest since: 1920 1906, 1907
96th Warmest Warmest since: 1929 2002
Ties: 1903, 1904, 1916, 1961, 1964, 1980

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2019, retrieved on December 15, 2019 from https://www.ncdc.noaa.gov/cag/