Statewide Rankings

Statewide Data Info
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Illinois

Average Temperature Rankings, July 2009

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  • Record Coolest
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
July 2009
1-Month
70.3°F
(21.3°C)
75.6°F
(24.2°C)
-5.3°F
(-2.9°C)
1st Coolest
Coolest since:
2009, 2014
128th Warmest
Warmest since:
1936
Ties: 2014
Jun–Jul 2009
2-Month
71.5°F
(21.9°C)
73.5°F
(23.1°C)
-2.0°F
(-1.2°C)
20th Coolest
Coolest since:
1915
109th Warmest
Warmest since:
1934
Ties: 1906
May–Jul 2009
3-Month
68.6°F
(20.3°C)
69.7°F
(20.9°C)
-1.1°F
(-0.6°C)
28th Coolest
Coolest since:
1924
101st Warmest
Warmest since:
1934
Ties: 1968, 1981, 1996
Apr–Jul 2009
4-Month
64.3°F
(17.9°C)
65.1°F
(18.4°C)
-0.8°F
(-0.5°C)
34th Coolest
Coolest since:
1907
95th Warmest
Warmest since:
1934
Ties: 1915, 1972, 2003
Mar–Jul 2009
5-Month
60.2°F
(15.7°C)
60.1°F
(15.6°C)
0.1°F
(0.1°C)
59th Coolest
Coolest since:
1960
70th Warmest
Warmest since:
2012
Ties: 1898, 1902, 1903, 1913
Feb–Jul 2009
6-Month
55.6°F
(13.1°C)
55.0°F
(12.8°C)
0.6°F
(0.3°C)
78th Coolest
Coolest since:
1947
51st Warmest
Warmest since:
2012
Ties: 1985, 2007
Jan–Jul 2009
7-Month
50.6°F
(10.3°C)
50.7°F
(10.4°C)
-0.1°F
(-0.1°C)
61st Coolest
Coolest since:
1912
68th Warmest
Warmest since:
2012
Ties: 1910, 1989
Dec 2008–Jul 2009
8-Month
47.6°F
(8.7°C)
48.1°F
(8.9°C)
-0.5°F
(-0.2°C)
45th Coolest
Coolest since:
1904
83rd Warmest
Warmest since:
2012
Ties: 1923, 1943, 1980, 1994
Nov 2008–Jul 2009
9-Month
46.9°F
(8.3°C)
47.3°F
(8.5°C)
-0.4°F
(-0.2°C)
48th Coolest
Coolest since:
1904
80th Warmest
Warmest since:
2012
Ties: 1897, 1993, 2008
Oct 2008–Jul 2009
10-Month
47.6°F
(8.7°C)
48.0°F
(8.9°C)
-0.4°F
(-0.2°C)
45th Coolest
Coolest since:
1904
83rd Warmest
Warmest since:
2012
Ties: 1956, 1980, 1989, 1993, 2001
Sep 2008–Jul 2009
11-Month
49.4°F
(9.7°C)
49.7°F
(9.8°C)
-0.3°F
(-0.1°C)
51st Coolest
Coolest since:
1904
77th Warmest
Warmest since:
2012
Ties: 1903, 1937, 1950, 1989
Aug 2008–Jul 2009
12-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
41st Coolest
Coolest since:
1904
87th Warmest
Warmest since:
2012
Ties: 1903, 1907, 1927, 1943, 1962, 1971, 1980
Feb 2008–Jul 2009
18-Month
52.1°F
(11.2°C)
52.7°F
(11.5°C)
-0.6°F
(-0.3°C)
35th Coolest
Coolest since:
1918
93rd Warmest
Warmest since:
2012
Ties: 1910, 1925, 1960, 1969
Aug 2007–Jul 2009
24-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
73rd Coolest
Coolest since:
1905
54th Warmest
Warmest since:
2017
Ties: 1975, 1990, 2010
Aug 2006–Jul 2009
36-Month
52.2°F
(11.2°C)
51.6°F
(10.9°C)
0.6°F
(0.3°C)
84th Coolest
Coolest since:
1979
42nd Warmest
Warmest since:
2018
Ties: 1944, 1950, 1974, 1976
Aug 2005–Jul 2009
48-Month
52.7°F
(11.5°C)
51.6°F
(10.9°C)
1.1°F
(0.6°C)
105th Coolest
Coolest since:
1905, 1980
20th Warmest
Warmest since:
2019
Ties: 1922, 2017
Aug 2004–Jul 2009
60-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
111th Coolest
Coolest since:
1906
13th Warmest
Warmest since:
2020
Ties: 1957, 2022

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