Climate at a Glance

Divisional 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, Climate Division 8. Southwest

Average Temperature Rankings, April 1977

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
April 1977
1-Month
60.3°F
(15.7°C)
55.3°F
(12.9°C)
5.0°F
(2.8°C)
117th Coolest Coolest since: 1976 1907
11th Warmest Warmest since: 1955 1896
Mar–Apr 1977
2-Month
55.2°F
(12.9°C)
50.0°F
(10.0°C)
5.2°F
(2.9°C)
125th Coolest Coolest since: 1976 1926, 1960
3rd Warmest Warmest since: 1946 2012
Feb–Apr 1977
3-Month
48.1°F
(8.9°C)
44.9°F
(7.2°C)
3.2°F
(1.7°C)
112th Coolest Coolest since: 1975 1899
16th Warmest Warmest since: 1976 2012
Jan–Apr 1977
4-Month
40.0°F
(4.4°C)
41.5°F
(5.3°C)
-1.5°F
(-0.9°C)
30th Coolest Coolest since: 1971 1978
98th Warmest Warmest since: 1976 2012
Ties: 1900, 1968, 2015
Dec 1976–Apr 1977
5-Month
38.1°F
(3.4°C)
40.1°F
(4.5°C)
-2.0°F
(-1.1°C)
17th Coolest Coolest since: 1970 1978
110th Warmest Warmest since: 1976 2012
Ties: 1958, 1962, 1980
Nov 1976–Apr 1977
6-Month
37.9°F
(3.3°C)
40.9°F
(4.9°C)
-3.0°F
(-1.6°C)
11th Coolest Coolest since: 1940 1912
116th Warmest Warmest since: 1976 2012
Oct 1976–Apr 1977
7-Month
39.8°F
(4.3°C)
43.3°F
(6.3°C)
-3.5°F
(-2.0°C)
7th Coolest Coolest since: 1918 1899, 1978
120th Warmest Warmest since: 1976 2012
Sep 1976–Apr 1977
8-Month
43.1°F
(6.2°C)
46.5°F
(8.1°C)
-3.4°F
(-1.9°C)
4th Coolest Coolest since: 1918 1918
123rd Warmest Warmest since: 1976 2017
Aug 1976–Apr 1977
9-Month
46.4°F
(8.0°C)
49.8°F
(9.9°C)
-3.4°F
(-1.9°C)
2nd Coolest Coolest since: 1918 1918
125th Warmest Warmest since: 1976 2017
Ties: 1978
Jul 1976–Apr 1977
10-Month
49.4°F
(9.7°C)
52.5°F
(11.4°C)
-3.1°F
(-1.7°C)
2nd Coolest Coolest since: 1918 1918
125th Warmest Warmest since: 1976 2012
Jun 1976–Apr 1977
11-Month
51.4°F
(10.8°C)
54.5°F
(12.5°C)
-3.1°F
(-1.7°C)
2nd Coolest Coolest since: 1918 1918
125th Warmest Warmest since: 1976 2012, 2017
May 1976–Apr 1977
12-Month
52.2°F
(11.2°C)
55.4°F
(13.0°C)
-3.2°F
(-1.8°C)
2nd Coolest Coolest since: 1918 1918
125th Warmest Warmest since: 1976 2012, 2017
Nov 1975–Apr 1977
18-Month
49.5°F
(9.7°C)
50.5°F
(10.3°C)
-1.0°F
(-0.6°C)
17th Coolest Coolest since: 1971 1979
109th Warmest Warmest since: 1976 2017
Ties: 1902, 1912, 1971, 1997
May 1975–Apr 1977
24-Month
54.6°F
(12.6°C)
55.4°F
(13.0°C)
-0.8°F
(-0.4°C)
24th Coolest Coolest since: 1971 1978
102nd Warmest Warmest since: 1976 2017
Ties: 1930, 1951, 1997
May 1974–Apr 1977
36-Month
54.5°F
(12.5°C)
55.4°F
(13.0°C)
-0.9°F
(-0.5°C)
13th Coolest Coolest since: 1971 1979
112th Warmest Warmest since: 1976 2018
Ties: 1907, 1962, 1984
May 1973–Apr 1977
48-Month
55.0°F
(12.8°C)
55.3°F
(12.9°C)
-0.3°F
(-0.1°C)
31st Coolest Coolest since: 1972 1980
93rd Warmest Warmest since: 1976 2019
Ties: 1901, 1912, 1921, 1930, 1952, 1968, 1983
May 1972–Apr 1977
60-Month
55.0°F
(12.8°C)
55.3°F
(12.9°C)
-0.3°F
(-0.1°C)
31st Coolest Coolest since: 1973 1980, 1981
92nd Warmest Warmest since: 1976 2020
Ties: 1900, 1913, 1914, 1921, 1929, 1961, 1986

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published July 2021, retrieved on July 29, 2021 from https://www.ncdc.noaa.gov/cag/