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 December 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, August 1921

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
August 1921
1-Month
73.0°F
(22.8°C)
73.4°F
(23.0°C)
-0.4°F
(-0.2°C)
52nd Coolest Coolest since: 1920 1915
75th Warmest Warmest since: 1918 1947
Ties: 1923, 1969, 1978
Jul–Aug 1921
2-Month
76.3°F
(24.6°C)
74.5°F
(23.6°C)
1.8°F
(1.0°C)
104th Coolest Coolest since: 1920 1915
23rd Warmest Warmest since: 1916 1936
Jun–Aug 1921
3-Month
76.1°F
(24.5°C)
73.5°F
(23.1°C)
2.6°F
(1.4°C)
117th Coolest Coolest since: 1920 1915
10th Warmest Warmest since: 1914 1936
May–Aug 1921
4-Month
73.1°F
(22.8°C)
70.6°F
(21.4°C)
2.5°F
(1.4°C)
117th Coolest Coolest since: 1920 1915
10th Warmest Warmest since: 1914 1934, 1936
Apr–Aug 1921
5-Month
69.3°F
(20.7°C)
66.8°F
(19.3°C)
2.5°F
(1.4°C)
119th Coolest Coolest since: 1920 1907
8th Warmest Warmest since: 1896 1934
Ties: 1955, 1977
Mar–Aug 1921
6-Month
65.8°F
(18.8°C)
62.3°F
(16.8°C)
3.5°F
(2.0°C)
124th Coolest Coolest since: 1920 1904, 1950, 1960
3rd Warmest Warmest to Date 2012
Ties: 1991
Feb–Aug 1921
7-Month
61.4°F
(16.3°C)
57.5°F
(14.2°C)
3.9°F
(2.1°C)
125th Coolest Coolest since: 1920 1904
2nd Warmest Warmest to Date 2012
Jan–Aug 1921
8-Month
57.8°F
(14.3°C)
53.5°F
(11.9°C)
4.3°F
(2.4°C)
125th Coolest Coolest since: 1920 1904, 1912
2nd Warmest Warmest to Date 2012
Dec 1920–Aug 1921
9-Month
54.9°F
(12.7°C)
50.9°F
(10.5°C)
4.0°F
(2.2°C)
124th Coolest Coolest since: 1920 1904
2nd Warmest Warmest to Date 2012
Nov 1920–Aug 1921
10-Month
53.2°F
(11.8°C)
49.8°F
(9.9°C)
3.4°F
(1.9°C)
123rd Coolest Coolest since: 1920 1904
3rd Warmest Warmest to Date 2012
Oct 1920–Aug 1921
11-Month
53.8°F
(12.1°C)
50.3°F
(10.2°C)
3.5°F
(1.9°C)
123rd Coolest Coolest since: 1920 1904
3rd Warmest Warmest to Date 2012
Sep 1920–Aug 1921
12-Month
55.0°F
(12.8°C)
51.6°F
(10.9°C)
3.4°F
(1.9°C)
122nd Coolest Coolest since: 1920 1904
4th Warmest Warmest to Date 2012
Ties: 1932
Mar 1920–Aug 1921
18-Month
56.9°F
(13.8°C)
55.2°F
(12.9°C)
1.7°F
(0.9°C)
113th Coolest Coolest since: 1920 1904
13th Warmest Warmest to Date 2012
Ties: 1934, 2005, 2011
Sep 1919–Aug 1921
24-Month
52.4°F
(11.3°C)
51.6°F
(10.9°C)
0.8°F
(0.4°C)
94th Coolest Coolest since: 1920 1905
31st Warmest Warmest since: 1914 2017
Ties: 1923, 1943, 1949, 1953, 1956, 2019
Sep 1918–Aug 1921
36-Month
52.5°F
(11.4°C)
51.6°F
(10.9°C)
0.9°F
(0.5°C)
95th Coolest Coolest since: 1920 1979
29th Warmest Warmest to Date 2018
Ties: 1943, 1957, 1991, 1993, 2014
Sep 1917–Aug 1921
48-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
65th Coolest Coolest since: 1920 1905
58th Warmest Warmest since: 1916 2019
Ties: 1925, 1931, 1938, 1950, 1995, 2016
Sep 1916–Aug 1921
60-Month
51.3°F
(10.7°C)
51.6°F
(10.9°C)
-0.3°F
(-0.2°C)
33rd Coolest Coolest since: 1920 1906
89th Warmest Warmest since: 1917 2020
Ties: 1900, 1901, 1910, 1913, 1915, 1916, 1965, 1967, 1973

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 20, 2021 from https://www.ncdc.noaa.gov/cag/