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 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1951

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
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: 1949 1918
115th Warmest Warmest since: 1950 1925, 1933
Aug–Sep 1951
2-Month
67.4°F
(19.7°C)
69.9°F
(21.1°C)
-2.5°F
(-1.4°C)
11th Coolest Coolest since: 1950 1967
115th Warmest Warmest since: 1948 1936
Jul–Sep 1951
3-Month
69.6°F
(20.9°C)
71.8°F
(22.1°C)
-2.2°F
(-1.2°C)
9th Coolest Coolest since: 1950 1967
117th Warmest Warmest since: 1949 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: 1950 1915, 1924
116th Warmest Warmest since: 1949 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: 1950 1924
109th Warmest Warmest since: 1949 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: 1950 1907
116th Warmest Warmest since: 1949 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: 1950 1924
121st Warmest Warmest since: 1949 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: 1950 1904
111th Warmest Warmest since: 1949 2012
Ties: 1947, 1989
Jan–Sep 1951
9-Month
53.5°F
(11.9°C)
55.0°F
(12.8°C)
-1.5°F
(-0.9°C)
19th Coolest Coolest since: 1940 1904, 1912
107th Warmest Warmest since: 1950 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: 1920 1904
115th Warmest Warmest since: 1950 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: 1912 1904
120th Warmest Warmest since: 1950 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: 1926 1904
115th Warmest Warmest since: 1950 2012
Ties: 1926, 1982
Apr 1950–Sep 1951
18-Month
54.5°F
(12.5°C)
56.6°F
(13.7°C)
-2.1°F
(-1.2°C)
3rd Coolest Coolest since: 1918 1904, 1918
122nd Warmest Warmest since: 1950 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: 1927 1979
114th Warmest Warmest since: 1950 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: 1929 1979
97th Warmest Warmest since: 1950 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: 1930 1905
88th Warmest Warmest since: 1950 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: 1930 1906
80th Warmest Warmest since: 1950 2002
Ties: 1901, 1915, 1917, 1921, 1926, 1968, 1984, 1985, 1996

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2020, retrieved on August 3, 2020 from https://www.ncdc.noaa.gov/cag/