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 1990

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1990
1-Month
66.2°F
(19.0°C)
63.0°F
(17.2°C)
3.2°F
(1.8°C)
103rd Coolest Coolest since: 1989 1896, 1993
23rd Warmest Warmest since: 1978 1897, 1931
Ties: 1921
Aug–Sep 1990
2-Month
68.9°F
(20.5°C)
67.1°F
(19.5°C)
1.8°F
(1.0°C)
97th Coolest Coolest since: 1989 1974, 1992
29th Warmest Warmest since: 1988 1947
Ties: 2018, 2019
Jul–Sep 1990
3-Month
70.1°F
(21.2°C)
69.5°F
(20.8°C)
0.6°F
(0.4°C)
86th Coolest Coolest since: 1989 1992
40th Warmest Warmest since: 1988 1936
Ties: 1895, 1906, 1995, 2011
Jun–Sep 1990
4-Month
70.1°F
(21.2°C)
69.3°F
(20.7°C)
0.8°F
(0.5°C)
83rd Coolest Coolest since: 1989 1915
43rd Warmest Warmest since: 1988 1936
Ties: 1959, 2017
May–Sep 1990
5-Month
67.4°F
(19.7°C)
67.5°F
(19.7°C)
-0.1°F
(0.0°C)
57th Coolest Coolest since: 1989 1915
69th Warmest Warmest since: 1988 1936
Apr–Sep 1990
6-Month
64.2°F
(17.9°C)
64.2°F
(17.9°C)
0.0°F
(0.0°C)
59th Coolest Coolest since: 1989 1907
67th Warmest Warmest since: 1988 1936
Ties: 1899, 1923, 1940, 1971
Mar–Sep 1990
7-Month
60.7°F
(15.9°C)
60.0°F
(15.6°C)
0.7°F
(0.3°C)
84th Coolest Coolest since: 1989 1951
42nd Warmest Warmest since: 1988 2012
Ties: 1913, 1937, 1948, 1973
Feb–Sep 1990
8-Month
56.6°F
(13.7°C)
55.4°F
(13.0°C)
1.2°F
(0.7°C)
99th Coolest Coolest since: 1989 1950
27th Warmest Warmest since: 1988 2012
Ties: 1946
Jan–Sep 1990
9-Month
53.6°F
(12.0°C)
51.2°F
(10.7°C)
2.4°F
(1.3°C)
113th Coolest Coolest since: 1989 1912
13th Warmest Warmest since: 1987 2012
Dec 1989–Sep 1990
10-Month
49.6°F
(9.8°C)
48.3°F
(9.1°C)
1.3°F
(0.7°C)
94th Coolest Coolest since: 1989 1979
31st Warmest Warmest since: 1988 2012
Ties: 1922
Nov 1989–Sep 1990
11-Month
48.1°F
(8.9°C)
47.1°F
(8.4°C)
1.0°F
(0.5°C)
93rd Coolest Coolest since: 1989 1912
32nd Warmest Warmest since: 1988 2012
Ties: 1900, 1908, 1913, 1980, 1995
Oct 1989–Sep 1990
12-Month
48.5°F
(9.2°C)
47.6°F
(8.7°C)
0.9°F
(0.5°C)
90th Coolest Coolest since: 1989 1912
35th Warmest Warmest since: 1988 2012
Ties: 1922, 1995
Apr 1989–Sep 1990
18-Month
53.6°F
(12.0°C)
53.1°F
(11.7°C)
0.5°F
(0.3°C)
81st Coolest Coolest since: 1986 1951
44th Warmest Warmest since: 1989 2012
Ties: 1957
Oct 1988–Sep 1990
24-Month
47.9°F
(8.8°C)
47.5°F
(8.6°C)
0.4°F
(0.2°C)
83rd Coolest Coolest since: 1986 1979
41st Warmest Warmest since: 1989 2017
Ties: 1948, 1956, 2008
Oct 1987–Sep 1990
36-Month
48.4°F
(9.1°C)
47.5°F
(8.6°C)
0.9°F
(0.5°C)
95th Coolest Coolest since: 1986 1979
28th Warmest Warmest since: 1989 2000
Ties: 1922, 1931, 1939, 1942, 1992, 2014
Oct 1986–Sep 1990
48-Month
48.9°F
(9.4°C)
47.5°F
(8.6°C)
1.4°F
(0.8°C)
109th Coolest Coolest since: 1989 1905, 1918
13th Warmest Warmest since: 1935 1934
Ties: 2006
Oct 1985–Sep 1990
60-Month
48.6°F
(9.2°C)
47.5°F
(8.6°C)
1.1°F
(0.6°C)
107th Coolest Coolest since: 1989 1906, 1907
14th Warmest Warmest since: 1942 2002
Ties: 1923, 1936, 2001, 2005

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2019, retrieved on December 10, 2019 from https://www.ncdc.noaa.gov/cag/