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 October 2020. For more information, please see Climatological Rankings.


Illinois, Climate Division 6. West Southwest

Average Temperature Rankings, April 1999

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
April 1999
1-Month
55.8°F
(13.2°C)
53.0°F
(11.7°C)
2.8°F
(1.5°C)
98th Coolest Coolest since: 1998 1907
29th Warmest Warmest since: 1991 1896
Ties: 1895, 1965
Mar–Apr 1999
2-Month
47.8°F
(8.8°C)
47.4°F
(8.6°C)
0.4°F
(0.2°C)
72nd Coolest Coolest since: 1998 1926
55th Warmest Warmest since: 1995 2012
Ties: 1895, 1988
Feb–Apr 1999
3-Month
45.0°F
(7.2°C)
42.0°F
(5.6°C)
3.0°F
(1.6°C)
104th Coolest Coolest since: 1997 1899, 1978
23rd Warmest Warmest since: 1998 2012
Jan–Apr 1999
4-Month
40.4°F
(4.7°C)
38.2°F
(3.4°C)
2.2°F
(1.3°C)
96th Coolest Coolest since: 1997 1912
31st Warmest Warmest since: 1998 2012
Ties: 1919
Dec 1998–Apr 1999
5-Month
39.5°F
(4.2°C)
36.9°F
(2.7°C)
2.6°F
(1.5°C)
108th Coolest Coolest since: 1997 1978
18th Warmest Warmest since: 1998 2012
Nov 1998–Apr 1999
6-Month
40.7°F
(4.8°C)
37.8°F
(3.2°C)
2.9°F
(1.6°C)
113th Coolest Coolest since: 1998 1904, 1912
13th Warmest Warmest since: 1991 2012
Oct 1998–Apr 1999
7-Month
43.1°F
(6.2°C)
40.4°F
(4.7°C)
2.7°F
(1.5°C)
114th Coolest Coolest since: 1998 1912
12th Warmest Warmest since: 1976 2012
Sep 1998–Apr 1999
8-Month
46.7°F
(8.2°C)
43.7°F
(6.5°C)
3.0°F
(1.7°C)
116th Coolest Coolest since: 1998 1904
10th Warmest Warmest since: 1954 2017
Aug 1998–Apr 1999
9-Month
50.0°F
(10.0°C)
47.2°F
(8.4°C)
2.8°F
(1.6°C)
120th Coolest Coolest since: 1998 1918
6th Warmest Warmest since: 1954 2017
Ties: 1954, 2002
Jul 1998–Apr 1999
10-Month
52.6°F
(11.4°C)
50.1°F
(10.1°C)
2.5°F
(1.3°C)
117th Coolest Coolest since: 1998 1918
9th Warmest Warmest since: 1955 2012
Ties: 1955
Jun 1998–Apr 1999
11-Month
54.5°F
(12.5°C)
52.2°F
(11.2°C)
2.3°F
(1.3°C)
117th Coolest Coolest since: 1998 1904
9th Warmest Warmest since: 1955 2017
May 1998–Apr 1999
12-Month
55.6°F
(13.1°C)
53.1°F
(11.7°C)
2.5°F
(1.4°C)
119th Coolest Coolest since: 1998 1918
7th Warmest Warmest since: 1954 2017
Nov 1997–Apr 1999
18-Month
50.5°F
(10.3°C)
48.0°F
(8.9°C)
2.5°F
(1.4°C)
116th Coolest Coolest since: 1998 1905
9th Warmest Warmest since: 1992 2017
Ties: 1955
May 1997–Apr 1999
24-Month
54.7°F
(12.6°C)
53.1°F
(11.7°C)
1.6°F
(0.9°C)
112th Coolest Coolest since: 1998 1905
13th Warmest Warmest since: 1992 2017
Ties: 1933
May 1996–Apr 1999
36-Month
53.9°F
(12.2°C)
53.1°F
(11.7°C)
0.8°F
(0.5°C)
98th Coolest Coolest since: 1998 1979
26th Warmest Warmest since: 1992 2018
Ties: 1943, 2020
May 1995–Apr 1999
48-Month
53.4°F
(11.9°C)
53.1°F
(11.7°C)
0.3°F
(0.2°C)
71st Coolest Coolest since: 1998 1980
52nd Warmest Warmest since: 1994 2019
Ties: 1925, 1950, 1966, 1987, 1994, 2016
May 1994–Apr 1999
60-Month
53.5°F
(11.9°C)
53.1°F
(11.7°C)
0.4°F
(0.2°C)
74th Coolest Coolest since: 1998 1906
48th Warmest Warmest since: 1995 2020
Ties: 1924, 1932, 1949, 1987, 1988, 1995

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published November 2020, retrieved on December 4, 2020 from https://www.ncdc.noaa.gov/cag/