Statewide Rankings

Statewide Data Info
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Illinois

Average Temperature Rankings, September 1951

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Warmest/Coolest
Since
Record
September 1951
1-Month
62.8°F
(17.1°C)
66.2°F
(19.0°C)
-3.4°F
(-1.9°C)
11th Coolest
Coolest since:
1918
118th Warmest
Warmest since:
1925, 1933
Aug–Sep 1951
2-Month
67.4°F
(19.7°C)
69.8°F
(21.0°C)
-2.4°F
(-1.3°C)
11th Coolest
Coolest since:
1967
118th Warmest
Warmest since:
1936
Jul–Sep 1951
3-Month
69.6°F
(20.9°C)
71.7°F
(22.1°C)
-2.1°F
(-1.2°C)
9th Coolest
Coolest since:
1967
120th Warmest
Warmest since:
1936
Ties: 2014
Jun–Sep 1951
4-Month
69.4°F
(20.8°C)
71.7°F
(22.1°C)
-2.3°F
(-1.3°C)
10th Coolest
Coolest since:
1915, 1924
119th Warmest
Warmest since:
1936
Ties: 1917, 1928
May–Sep 1951
5-Month
68.2°F
(20.1°C)
69.7°F
(20.9°C)
-1.5°F
(-0.8°C)
17th Coolest
Coolest since:
1924
112th Warmest
Warmest since:
1936
Ties: 1946
Apr–Sep 1951
6-Month
64.9°F
(18.3°C)
66.7°F
(19.3°C)
-1.8°F
(-1.0°C)
10th Coolest
Coolest since:
1907
119th Warmest
Warmest since:
2010
Ties: 1945, 1961
Mar–Sep 1951
7-Month
60.8°F
(16.0°C)
62.9°F
(17.2°C)
-2.1°F
(-1.2°C)
5th Coolest
Coolest since:
1924
124th Warmest
Warmest since:
2012
Ties: 1907, 1915
Feb–Sep 1951
8-Month
56.9°F
(13.8°C)
58.7°F
(14.8°C)
-1.8°F
(-1.0°C)
15th Coolest
Coolest since:
1904
114th Warmest
Warmest since:
2012
Ties: 1947, 1989
Jan–Sep 1951
9-Month
53.5°F
(11.9°C)
54.9°F
(12.7°C)
-1.4°F
(-0.8°C)
19th Coolest
Coolest since:
1904, 1912
110th Warmest
Warmest since:
2012
Ties: 1966, 1996
Dec 1950–Sep 1951
10-Month
50.3°F
(10.2°C)
52.4°F
(11.3°C)
-2.1°F
(-1.1°C)
10th Coolest
Coolest since:
1904
118th Warmest
Warmest since:
2012
Ties: 1920
Nov 1950–Sep 1951
11-Month
48.9°F
(9.4°C)
51.4°F
(10.8°C)
-2.5°F
(-1.4°C)
5th Coolest
Coolest since:
1904
123rd Warmest
Warmest since:
2012
Ties: 1978
Oct 1950–Sep 1951
12-Month
49.7°F
(9.8°C)
51.6°F
(10.9°C)
-1.9°F
(-1.1°C)
10th Coolest
Coolest since:
1904
118th Warmest
Warmest since:
2012
Ties: 1926, 1982
Apr 1950–Sep 1951
18-Month
54.5°F
(12.5°C)
56.7°F
(13.7°C)
-2.2°F
(-1.2°C)
3rd Coolest
Coolest since:
1904, 1918
125th Warmest
Warmest since:
2012
Oct 1949–Sep 1951
24-Month
50.5°F
(10.3°C)
51.6°F
(10.9°C)
-1.1°F
(-0.6°C)
10th Coolest
Coolest since:
1979
117th Warmest
Warmest since:
2017
Ties: 1903, 1913
Oct 1948–Sep 1951
36-Month
51.1°F
(10.6°C)
51.6°F
(10.9°C)
-0.5°F
(-0.3°C)
26th Coolest
Coolest since:
1979
100th Warmest
Warmest since:
2018
Ties: 1901, 1952, 1961, 1967, 1968, 1982
Oct 1947–Sep 1951
48-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
34th Coolest
Coolest since:
1905
91st Warmest
Warmest since:
2019
Ties: 1900, 1903, 1909, 1928, 1930, 1960, 1964, 1965, 1984
Oct 1946–Sep 1951
60-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
41st Coolest
Coolest since:
1906
83rd Warmest
Warmest since:
2020
Ties: 1901, 1915, 1917, 1921, 1926, 1968, 1984, 1985, 1996

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