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 1949

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
August 1949
1-Month
73.6°F
(23.1°C)
73.4°F
(23.0°C)
0.2°F
(0.1°C)
67th Coolest Coolest since: 1946 1915
60th Warmest Warmest since: 1948 1947
Ties: 1925, 1958, 2012
Jul–Aug 1949
2-Month
75.8°F
(24.3°C)
74.5°F
(23.6°C)
1.3°F
(0.7°C)
99th Coolest Coolest since: 1948 1915
28th Warmest Warmest since: 1947 1936
Ties: 1941, 1959, 1987, 1993, 2007
Jun–Aug 1949
3-Month
75.2°F
(24.0°C)
73.5°F
(23.1°C)
1.7°F
(0.9°C)
102nd Coolest Coolest since: 1948 1915
25th Warmest Warmest since: 1943 1936
May–Aug 1949
4-Month
72.5°F
(22.5°C)
70.7°F
(21.5°C)
1.8°F
(1.0°C)
108th Coolest Coolest since: 1948 1915
19th Warmest Warmest since: 1944 1934, 1936
Ties: 1941
Apr–Aug 1949
5-Month
68.1°F
(20.1°C)
66.8°F
(19.3°C)
1.3°F
(0.8°C)
99th Coolest Coolest since: 1948 1907
28th Warmest Warmest since: 1944 1934
Ties: 1944, 1952
Mar–Aug 1949
6-Month
63.3°F
(17.4°C)
62.3°F
(16.8°C)
1.0°F
(0.6°C)
93rd Coolest Coolest since: 1948 1904, 1950, 1960
34th Warmest Warmest since: 1946 2012
Ties: 1942, 1953, 1964, 1985, 2001
Feb–Aug 1949
7-Month
58.6°F
(14.8°C)
57.5°F
(14.2°C)
1.1°F
(0.6°C)
88th Coolest Coolest since: 1948 1904
39th Warmest Warmest since: 1946 2012
Ties: 2020
Jan–Aug 1949
8-Month
54.9°F
(12.7°C)
53.6°F
(12.0°C)
1.3°F
(0.7°C)
94th Coolest Coolest since: 1948 1904, 1912
33rd Warmest Warmest since: 1946 2012
Ties: 1964
Dec 1948–Aug 1949
9-Month
52.4°F
(11.3°C)
50.9°F
(10.5°C)
1.5°F
(0.8°C)
100th Coolest Coolest since: 1948 1904
26th Warmest Warmest since: 1938 2012
Ties: 1896
Nov 1948–Aug 1949
10-Month
51.5°F
(10.8°C)
49.9°F
(9.9°C)
1.6°F
(0.9°C)
103rd Coolest Coolest since: 1948 1904
23rd Warmest Warmest since: 1934 2012
Ties: 1955, 1988
Oct 1948–Aug 1949
11-Month
51.5°F
(10.8°C)
50.3°F
(10.2°C)
1.2°F
(0.6°C)
97th Coolest Coolest since: 1948 1904
29th Warmest Warmest since: 1942 2012
Ties: 1957
Sep 1948–Aug 1949
12-Month
52.9°F
(11.6°C)
51.7°F
(10.9°C)
1.2°F
(0.7°C)
102nd Coolest Coolest since: 1948 1904
24th Warmest Warmest since: 1942 2012
Ties: 1914
Mar 1948–Aug 1949
18-Month
56.1°F
(13.4°C)
55.2°F
(12.9°C)
0.9°F
(0.5°C)
91st Coolest Coolest since: 1948 1904
35th Warmest Warmest since: 1942 2012
Ties: 1964
Sep 1947–Aug 1949
24-Month
52.4°F
(11.3°C)
51.7°F
(10.9°C)
0.7°F
(0.4°C)
94th Coolest Coolest since: 1948 1905
31st Warmest Warmest since: 1943 2017
Ties: 1921, 1923, 1943, 1953, 1956, 2019
Sep 1946–Aug 1949
36-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
81st Coolest Coolest since: 1948 1979
43rd Warmest Warmest since: 1944 2018
Ties: 1944, 1976, 2009
Sep 1945–Aug 1949
48-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
84th Coolest Coolest since: 1948 1905
39th Warmest Warmest since: 1944 2019
Ties: 1937, 1939, 1940, 1943, 1954, 1976, 1987, 1999, 2011
Sep 1944–Aug 1949
60-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
68th Coolest Coolest since: 1948 1906
54th Warmest Warmest since: 1946 2020
Ties: 1946, 1950, 1954, 1959

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 26, 2021 from https://www.ncdc.noaa.gov/cag/