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 August 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, June 1999

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
June 1999
1-Month
72.2°F
(22.3°C)
71.4°F
(21.9°C)
0.8°F
(0.4°C)
72nd Coolest Coolest since: 1998 1903
56th Warmest Warmest since: 1995 1934
May–Jun 1999
2-Month
68.1°F
(20.1°C)
66.7°F
(19.3°C)
1.4°F
(0.8°C)
91st Coolest Coolest since: 1997 1907, 1917
37th Warmest Warmest since: 1998 2018
Apr–Jun 1999
3-Month
63.5°F
(17.5°C)
61.6°F
(16.4°C)
1.9°F
(1.1°C)
102nd Coolest Coolest since: 1997 1907
26th Warmest Warmest since: 1998 1991
Ties: 1952, 2007, 2018
Mar–Jun 1999
4-Month
57.2°F
(14.0°C)
56.2°F
(13.4°C)
1.0°F
(0.6°C)
84th Coolest Coolest since: 1997 1960
44th Warmest Warmest since: 1998 2012
Ties: 1910, 1953, 1994
Feb–Jun 1999
5-Month
53.3°F
(11.8°C)
50.8°F
(10.4°C)
2.5°F
(1.4°C)
113th Coolest Coolest since: 1997 1947
15th Warmest Warmest since: 1998 2012
Ties: 1954, 2005
Jan–Jun 1999
6-Month
48.6°F
(9.2°C)
46.6°F
(8.1°C)
2.0°F
(1.1°C)
105th Coolest Coolest since: 1997 1912
23rd Warmest Warmest since: 1998 2012
Ties: 1896, 1925, 1964, 1992
Dec 1998–Jun 1999
7-Month
46.6°F
(8.1°C)
44.1°F
(6.7°C)
2.5°F
(1.4°C)
113th Coolest Coolest since: 1997 1904, 1978
14th Warmest Warmest since: 1998 2012
Ties: 1953, 1954
Nov 1998–Jun 1999
8-Month
46.5°F
(8.1°C)
43.7°F
(6.5°C)
2.8°F
(1.6°C)
117th Coolest Coolest since: 1997 1904
10th Warmest Warmest since: 1998 2012
Ties: 1987, 2005, 2006
Oct 1998–Jun 1999
9-Month
47.6°F
(8.7°C)
44.9°F
(7.2°C)
2.7°F
(1.5°C)
117th Coolest Coolest since: 1997 1904
10th Warmest Warmest since: 1998 2012
Sep 1998–Jun 1999
10-Month
50.0°F
(10.0°C)
47.1°F
(8.4°C)
2.9°F
(1.6°C)
121st Coolest Coolest since: 1998 1904
6th Warmest Warmest since: 1932 2012
Aug 1998–Jun 1999
11-Month
52.2°F
(11.2°C)
49.4°F
(9.7°C)
2.8°F
(1.5°C)
121st Coolest Coolest since: 1998 1904
6th Warmest Warmest since: 1932 2012
Ties: 2006
Jul 1998–Jun 1999
12-Month
54.1°F
(12.3°C)
51.6°F
(10.9°C)
2.5°F
(1.4°C)
120th Coolest Coolest since: 1998 1904
7th Warmest Warmest since: 1932 2012
Ties: 2000
Jan 1998–Jun 1999
18-Month
53.0°F
(11.7°C)
49.9°F
(9.9°C)
3.1°F
(1.8°C)
124th Coolest Coolest since: 1998 1979
3rd Warmest Warmest to Date 2017
Jul 1997–Jun 1999
24-Month
53.8°F
(12.1°C)
51.6°F
(10.9°C)
2.2°F
(1.2°C)
119th Coolest Coolest since: 1998 1905
7th Warmest Warmest since: 1933 2017
Ties: 1922, 1933
Jul 1996–Jun 1999
36-Month
52.7°F
(11.5°C)
51.6°F
(10.9°C)
1.1°F
(0.6°C)
103rd Coolest Coolest since: 1998 1979
22nd Warmest Warmest since: 1992 2018
Ties: 1954
Jul 1995–Jun 1999
48-Month
52.2°F
(11.2°C)
51.6°F
(10.9°C)
0.6°F
(0.3°C)
85th Coolest Coolest since: 1998 1980
39th Warmest Warmest since: 1993 2019
Ties: 1939, 1987, 2010, 2015
Jul 1994–Jun 1999
60-Month
52.2°F
(11.2°C)
51.5°F
(10.8°C)
0.7°F
(0.4°C)
83rd Coolest Coolest since: 1998 1906
40th Warmest Warmest since: 1993 2020
Ties: 1939, 1988, 1993, 2015

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 21, 2021 from https://www.ncdc.noaa.gov/cag/