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 May 2022. For more information, please see Climatological Rankings.


Illinois, Climate Division 8. Southwest

Average Temperature Rankings, July 1999

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
July 1999
1-Month
80.4°F
(26.9°C)
77.9°F
(25.5°C)
2.5°F
(1.4°C)
110th Coolest Coolest since: 1998 2014
18th Warmest Warmest since: 1993 2012
Ties: 1931
Jun–Jul 1999
2-Month
77.4°F
(25.2°C)
75.9°F
(24.4°C)
1.5°F
(0.8°C)
101st Coolest Coolest since: 1998 1904, 1927
27th Warmest Warmest since: 1991 1934
Ties: 1944, 1987, 1991
May–Jul 1999
3-Month
73.5°F
(23.1°C)
72.3°F
(22.4°C)
1.2°F
(0.7°C)
94th Coolest Coolest since: 1997 1924
34th Warmest Warmest since: 1998 1934
Ties: 1918, 1943, 2007
Apr–Jul 1999
4-Month
69.8°F
(21.0°C)
68.0°F
(20.0°C)
1.8°F
(1.0°C)
106th Coolest Coolest since: 1998 1907
22nd Warmest Warmest since: 1991 2012
Ties: 1932, 1933, 2016, 2018
Mar–Jul 1999
5-Month
64.2°F
(17.9°C)
63.4°F
(17.4°C)
0.8°F
(0.5°C)
86th Coolest Coolest since: 1997 1960
42nd Warmest Warmest since: 1998 2012
Ties: 1908
Feb–Jul 1999
6-Month
60.6°F
(15.9°C)
58.6°F
(14.8°C)
2.0°F
(1.1°C)
110th Coolest Coolest since: 1997 1947
18th Warmest Warmest since: 1998 2012
Ties: 1952, 2000
Jan–Jul 1999
7-Month
56.6°F
(13.7°C)
54.7°F
(12.6°C)
1.9°F
(1.1°C)
106th Coolest Coolest since: 1997 1912
22nd Warmest Warmest since: 1998 2012
Ties: 1934, 2020
Dec 1998–Jul 1999
8-Month
54.3°F
(12.4°C)
52.2°F
(11.2°C)
2.1°F
(1.2°C)
111th Coolest Coolest since: 1997 1978
16th Warmest Warmest since: 1998 2012
Ties: 1987
Nov 1998–Jul 1999
9-Month
53.7°F
(12.1°C)
51.4°F
(10.8°C)
2.3°F
(1.3°C)
116th Coolest Coolest since: 1998 1904, 1912
11th Warmest Warmest since: 1991 2012
Oct 1998–Jul 1999
10-Month
54.3°F
(12.4°C)
51.9°F
(11.1°C)
2.4°F
(1.3°C)
119th Coolest Coolest since: 1998 1904, 1912
8th Warmest Warmest since: 1991 2012
Ties: 2002, 2006
Sep 1998–Jul 1999
11-Month
56.1°F
(13.4°C)
53.5°F
(11.9°C)
2.6°F
(1.5°C)
121st Coolest Coolest since: 1998 1904
6th Warmest Warmest since: 1932 2012
Aug 1998–Jul 1999
12-Month
57.8°F
(14.3°C)
55.4°F
(13.0°C)
2.4°F
(1.3°C)
121st Coolest Coolest since: 1998 1904
6th Warmest Warmest since: 1932 2012
Ties: 1921
Feb 1998–Jul 1999
18-Month
58.9°F
(14.9°C)
56.5°F
(13.6°C)
2.4°F
(1.3°C)
123rd Coolest Coolest since: 1998 1918, 1979
4th Warmest Warmest since: 1932 2012
Aug 1997–Jul 1999
24-Month
57.3°F
(14.1°C)
55.4°F
(13.0°C)
1.9°F
(1.1°C)
117th Coolest Coolest since: 1998 1979
9th Warmest Warmest since: 1933 2017
Aug 1996–Jul 1999
36-Month
56.3°F
(13.5°C)
55.3°F
(12.9°C)
1.0°F
(0.6°C)
100th Coolest Coolest since: 1998 1979
25th Warmest Warmest since: 1992 2018
Ties: 1943, 1957, 2004
Aug 1995–Jul 1999
48-Month
55.9°F
(13.3°C)
55.4°F
(13.0°C)
0.5°F
(0.3°C)
81st Coolest Coolest since: 1998 1980
43rd Warmest Warmest since: 1993 2019
Ties: 1940, 1954
Aug 1994–Jul 1999
60-Month
55.9°F
(13.3°C)
55.3°F
(12.9°C)
0.6°F
(0.4°C)
81st Coolest Coolest since: 1998 1906, 1980
42nd Warmest Warmest since: 1992 2020
Ties: 1945, 1946, 1989, 1990

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published June 2022, retrieved on July 6, 2022 from https://www.ncei.noaa.gov/cag/