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 June 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1981

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1981
1-Month
64.5°F
(18.1°C)
66.2°F
(19.0°C)
-1.7°F
(-0.9°C)
31st Coolest Coolest since: 1976 1918
96th Warmest Warmest since: 1980 1925, 1933
Ties: 1950
Aug–Sep 1981
2-Month
68.2°F
(20.1°C)
69.8°F
(21.0°C)
-1.6°F
(-0.9°C)
20th Coolest Coolest since: 1976 1967
107th Warmest Warmest since: 1980 1936
Ties: 1896, 1903, 1929, 1962, 1975, 1993
Jul–Sep 1981
3-Month
70.4°F
(21.3°C)
71.7°F
(22.1°C)
-1.3°F
(-0.8°C)
21st Coolest Coolest since: 1976 1967
106th Warmest Warmest since: 1980 1936
Ties: 1965, 1982
Jun–Sep 1981
4-Month
71.0°F
(21.7°C)
71.6°F
(22.0°C)
-0.6°F
(-0.3°C)
41st Coolest Coolest since: 1979 1915, 1924
86th Warmest Warmest since: 1980 1936
Ties: 1942, 1979
May–Sep 1981
5-Month
68.5°F
(20.3°C)
69.8°F
(21.0°C)
-1.3°F
(-0.7°C)
23rd Coolest Coolest since: 1976 1924
104th Warmest Warmest since: 1980 1936
Ties: 1902, 2009
Apr–Sep 1981
6-Month
66.6°F
(19.2°C)
66.7°F
(19.3°C)
-0.1°F
(-0.1°C)
51st Coolest Coolest since: 1979 1907
76th Warmest Warmest since: 1980 2010
Ties: 1905, 1916, 1943, 1971, 1973, 2020
Mar–Sep 1981
7-Month
62.9°F
(17.2°C)
62.8°F
(17.1°C)
0.1°F
(0.1°C)
57th Coolest Coolest since: 1979 1924
70th Warmest Warmest since: 1980 2012
Ties: 1918, 1949, 1956, 1957
Feb–Sep 1981
8-Month
59.0°F
(15.0°C)
58.7°F
(14.8°C)
0.3°F
(0.2°C)
74th Coolest Coolest since: 1980 1904
53rd Warmest Warmest since: 1977 2012
Ties: 1908, 1948
Jan–Sep 1981
9-Month
55.2°F
(12.9°C)
54.9°F
(12.7°C)
0.3°F
(0.2°C)
68th Coolest Coolest since: 1980 1904, 1912
59th Warmest Warmest since: 1977 2012
Ties: 1956
Dec 1980–Sep 1981
10-Month
52.8°F
(11.6°C)
52.4°F
(11.3°C)
0.4°F
(0.3°C)
73rd Coolest Coolest since: 1980 1904
53rd Warmest Warmest since: 1976 2012
Ties: 1898
Nov 1980–Sep 1981
11-Month
51.7°F
(10.9°C)
51.3°F
(10.7°C)
0.4°F
(0.2°C)
74th Coolest Coolest since: 1980 1904
52nd Warmest Warmest since: 1976 2012
Ties: 1935, 1992, 2011
Oct 1980–Sep 1981
12-Month
51.7°F
(10.9°C)
51.6°F
(10.9°C)
0.1°F
(0.0°C)
60th Coolest Coolest since: 1980 1904
66th Warmest Warmest since: 1980 2012
Ties: 1980
Apr 1980–Sep 1981
18-Month
57.1°F
(13.9°C)
56.6°F
(13.7°C)
0.5°F
(0.2°C)
77th Coolest Coolest since: 1980 1904, 1918
49th Warmest Warmest since: 1976 2012
Ties: 1900, 1923, 1972
Oct 1979–Sep 1981
24-Month
51.7°F
(10.9°C)
51.6°F
(10.9°C)
0.1°F
(0.0°C)
59th Coolest Coolest since: 1980 1979
66th Warmest Warmest since: 1976 2017
Ties: 1909, 1911, 1915, 1920, 1936, 1944
Oct 1978–Sep 1981
36-Month
50.8°F
(10.4°C)
51.6°F
(10.9°C)
-0.8°F
(-0.5°C)
14th Coolest Coolest since: 1980 1979
110th Warmest Warmest since: 1977 2018
Ties: 1920, 1960, 1963, 1970, 1971, 2015
Oct 1977–Sep 1981
48-Month
50.4°F
(10.2°C)
51.6°F
(10.9°C)
-1.2°F
(-0.7°C)
8th Coolest Coolest since: 1980 1905
115th Warmest Warmest since: 1978 2019
Oct 1976–Sep 1981
60-Month
50.4°F
(10.2°C)
51.6°F
(10.9°C)
-1.2°F
(-0.7°C)
4th Coolest Coolest since: 1908 1906
118th Warmest Warmest since: 1980 2020
Ties: 1907, 1908

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2021, retrieved on July 31, 2021 from https://www.ncdc.noaa.gov/cag/