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 September 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, July 1999

View Period (Months):All1234567891011121824364860
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
July 1999
1-Month
78.6°F
(25.9°C)
75.6°F
(24.2°C)
3.0°F
(1.7°C)
115th Coolest Coolest since: 1998 2009, 2014
11th Warmest Warmest since: 1983 1936
Ties: 1931, 1954
Jun–Jul 1999
2-Month
75.4°F
(24.1°C)
73.5°F
(23.1°C)
1.9°F
(1.0°C)
101st Coolest Coolest since: 1998 1915
25th Warmest Warmest since: 1991 1934
May–Jul 1999
3-Month
71.6°F
(22.0°C)
69.7°F
(20.9°C)
1.9°F
(1.1°C)
106th Coolest Coolest since: 1998 1924
20th Warmest Warmest since: 1991 1934
Ties: 1896, 1941, 1986, 2011
Apr–Jul 1999
4-Month
67.3°F
(19.6°C)
65.1°F
(18.4°C)
2.2°F
(1.2°C)
113th Coolest Coolest since: 1998 1907
13th Warmest Warmest since: 1991 1934
Ties: 1964
Mar–Jul 1999
5-Month
61.5°F
(16.4°C)
60.1°F
(15.6°C)
1.4°F
(0.8°C)
101st Coolest Coolest since: 1997 1960
25th Warmest Warmest since: 1998 2012
Ties: 1925, 1942, 1964
Feb–Jul 1999
6-Month
57.5°F
(14.2°C)
55.0°F
(12.8°C)
2.5°F
(1.4°C)
116th Coolest Coolest since: 1997 1947
10th Warmest Warmest since: 1998 2012
Ties: 1954, 2010
Jan–Jul 1999
7-Month
52.9°F
(11.6°C)
50.7°F
(10.4°C)
2.2°F
(1.2°C)
108th Coolest Coolest since: 1997 1912
18th Warmest Warmest since: 1998 2012
Ties: 1911, 1953, 1986
Dec 1998–Jul 1999
8-Month
50.6°F
(10.3°C)
48.0°F
(8.9°C)
2.6°F
(1.4°C)
115th Coolest Coolest since: 1997 1904
10th Warmest Warmest since: 1998 2012
Ties: 1934, 1954, 2006
Nov 1998–Jul 1999
9-Month
50.1°F
(10.1°C)
47.3°F
(8.5°C)
2.8°F
(1.6°C)
116th Coolest Coolest since: 1998 1904
9th Warmest Warmest since: 1991 2012
Oct 1998–Jul 1999
10-Month
50.7°F
(10.4°C)
48.0°F
(8.9°C)
2.7°F
(1.5°C)
118th Coolest Coolest since: 1998 1904
7th Warmest Warmest since: 1991 2012
Ties: 1991, 2000
Sep 1998–Jul 1999
11-Month
52.6°F
(11.4°C)
49.7°F
(9.8°C)
2.9°F
(1.6°C)
119th Coolest Coolest since: 1998 1904
6th Warmest Warmest since: 1932 2012
Aug 1998–Jul 1999
12-Month
54.4°F
(12.4°C)
51.6°F
(10.9°C)
2.8°F
(1.5°C)
119th Coolest Coolest since: 1998 1904
6th Warmest Warmest since: 1932 2012
Feb 1998–Jul 1999
18-Month
55.6°F
(13.1°C)
52.7°F
(11.5°C)
2.9°F
(1.6°C)
122nd Coolest Coolest since: 1998 1918
3rd Warmest Warmest to Date 2012
Aug 1997–Jul 1999
24-Month
54.0°F
(12.2°C)
51.7°F
(10.9°C)
2.3°F
(1.3°C)
121st Coolest Coolest since: 1998 1905
3rd Warmest Warmest since: 1932 2017
Ties: 1932, 2000, 2013, 2018
Aug 1996–Jul 1999
36-Month
52.8°F
(11.6°C)
51.6°F
(10.9°C)
1.2°F
(0.7°C)
104th Coolest Coolest since: 1998 1979
19th Warmest Warmest since: 1992 2018
Ties: 1954, 2004
Aug 1995–Jul 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 1905, 1980
37th Warmest Warmest since: 1993 2019
Ties: 1940, 1987, 2011
Aug 1994–Jul 1999
60-Month
52.3°F
(11.3°C)
51.6°F
(10.9°C)
0.7°F
(0.4°C)
89th Coolest Coolest since: 1998 1906
32nd Warmest Warmest since: 1992 2002
Ties: 1932, 1941, 1943, 1958, 1987, 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 23, 2019 from https://www.ncdc.noaa.gov/cag/