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


Illinois

Average Temperature Rankings, August 1998

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
August 1998
1-Month
74.8°F
(23.8°C)
73.4°F
(23.0°C)
1.4°F
(0.8°C)
98th Coolest Coolest since: 1997 1915
29th Warmest Warmest since: 1995 1947
Ties: 2011
Jul–Aug 1998
2-Month
75.1°F
(23.9°C)
74.5°F
(23.6°C)
0.6°F
(0.3°C)
84th Coolest Coolest since: 1997 1915
43rd Warmest Warmest since: 1995 1936
Ties: 1999, 2019
Jun–Aug 1998
3-Month
74.0°F
(23.3°C)
73.5°F
(23.1°C)
0.5°F
(0.2°C)
77th Coolest Coolest since: 1997 1915
50th Warmest Warmest since: 1995 1936
Ties: 1947, 1993
May–Aug 1998
4-Month
72.4°F
(22.4°C)
70.7°F
(21.5°C)
1.7°F
(0.9°C)
106th Coolest Coolest since: 1997 1915
21st Warmest Warmest since: 1991 1934, 1936
Ties: 1980, 2011
Apr–Aug 1998
5-Month
68.4°F
(20.2°C)
66.8°F
(19.3°C)
1.6°F
(0.9°C)
105th Coolest Coolest since: 1997 1907
22nd Warmest Warmest since: 1991 1934
Ties: 2007
Mar–Aug 1998
6-Month
63.8°F
(17.7°C)
62.3°F
(16.8°C)
1.5°F
(0.9°C)
110th Coolest Coolest since: 1997 1904, 1950, 1960
17th Warmest Warmest since: 1991 2012
Ties: 1959
Feb–Aug 1998
7-Month
60.4°F
(15.8°C)
57.6°F
(14.2°C)
2.8°F
(1.6°C)
122nd Coolest Coolest since: 1997 1904
5th Warmest Warmest since: 1991 2012
Jan–Aug 1998
8-Month
56.8°F
(13.8°C)
53.5°F
(11.9°C)
3.3°F
(1.9°C)
124th Coolest Coolest since: 1997 1904, 1912
3rd Warmest Warmest since: 1987 2012
Ties: 1987, 2017
Dec 1997–Aug 1998
9-Month
54.0°F
(12.2°C)
50.8°F
(10.4°C)
3.2°F
(1.8°C)
122nd Coolest Coolest since: 1997 1904
4th Warmest Warmest since: 1987 2012
Ties: 1987
Nov 1997–Aug 1998
10-Month
52.5°F
(11.4°C)
49.9°F
(9.9°C)
2.6°F
(1.5°C)
117th Coolest Coolest since: 1997 1904
9th Warmest Warmest since: 1991 2012
Oct 1997–Aug 1998
11-Month
52.7°F
(11.5°C)
50.3°F
(10.2°C)
2.4°F
(1.3°C)
117th Coolest Coolest since: 1997 1904
9th Warmest Warmest since: 1991 2012
Ties: 1954, 2005, 2006
Sep 1997–Aug 1998
12-Month
53.8°F
(12.1°C)
51.6°F
(10.9°C)
2.2°F
(1.2°C)
112th Coolest Coolest since: 1997 1904
14th Warmest Warmest since: 1991 2012
Mar 1997–Aug 1998
18-Month
56.2°F
(13.4°C)
55.2°F
(12.9°C)
1.0°F
(0.5°C)
94th Coolest Coolest since: 1997 1904
32nd Warmest Warmest since: 1995 2012
Ties: 1937, 1953
Sep 1996–Aug 1998
24-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
86th Coolest Coolest since: 1997 1905
39th Warmest Warmest since: 1992 2017
Ties: 1938, 1957, 1973, 1974, 2010
Sep 1995–Aug 1998
36-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
45th Coolest Coolest since: 1997 1979
79th Warmest Warmest since: 1995 2018
Ties: 1910, 1914, 1925, 1958, 1964
Sep 1994–Aug 1998
48-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
70th Coolest Coolest since: 1997 1905
53rd Warmest Warmest since: 1994 2019
Ties: 1916, 1945, 1958, 1986
Sep 1993–Aug 1998
60-Month
51.6°F
(10.9°C)
51.6°F
(10.9°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1997 1906
67th Warmest Warmest since: 1995 2020
Ties: 1931, 1947, 1974, 1977

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2021, retrieved on March 2, 2021 from https://www.ncdc.noaa.gov/cag/