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


Illinois

Average Temperature Rankings, August 1909

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
August 1909
1-Month
76.3°F
(24.6°C)
73.4°F
(23.0°C)
2.9°F
(1.6°C)
111th Coolest Coolest since: 1908 1915
16th Warmest Warmest since: 1900 1947
Jul–Aug 1909
2-Month
74.6°F
(23.7°C)
74.5°F
(23.6°C)
0.1°F
(0.1°C)
70th Coolest Coolest since: 1908 1915
57th Warmest Warmest since: 1901 1936
Ties: 1923, 1966, 1969
Jun–Aug 1909
3-Month
73.5°F
(23.1°C)
73.5°F
(23.1°C)
0.0°F
(0.0°C)
63rd Coolest Coolest since: 1908 1915
64th Warmest Warmest since: 1901 1936
Ties: 1935
May–Aug 1909
4-Month
70.0°F
(21.1°C)
70.7°F
(21.5°C)
-0.7°F
(-0.4°C)
42nd Coolest Coolest since: 1908 1915
85th Warmest Warmest since: 1908 1934, 1936
Ties: 1908, 1948, 1968, 1969
Apr–Aug 1909
5-Month
65.8°F
(18.8°C)
66.8°F
(19.3°C)
-1.0°F
(-0.5°C)
29th Coolest Coolest since: 1907 1907
98th Warmest Warmest since: 1908 1934
Mar–Aug 1909
6-Month
61.2°F
(16.2°C)
62.3°F
(16.8°C)
-1.1°F
(-0.6°C)
25th Coolest Coolest since: 1907 1904, 1950, 1960
102nd Warmest Warmest since: 1908 2012
Ties: 1940, 1965, 1969, 1971, 1978, 1982
Feb–Aug 1909
7-Month
57.1°F
(13.9°C)
57.5°F
(14.2°C)
-0.4°F
(-0.3°C)
48th Coolest Coolest since: 1907 1904
79th Warmest Warmest since: 1908 2012
Ties: 1937
Jan–Aug 1909
8-Month
53.5°F
(11.9°C)
53.6°F
(12.0°C)
-0.1°F
(-0.1°C)
65th Coolest Coolest since: 1907 1904, 1912
62nd Warmest Warmest since: 1908 2012
Ties: 1975, 2019
Dec 1908–Aug 1909
9-Month
51.0°F
(10.6°C)
50.8°F
(10.4°C)
0.2°F
(0.2°C)
70th Coolest Coolest since: 1907 1904
56th Warmest Warmest since: 1908 2012
Ties: 1898, 1937, 1956, 1975
Nov 1908–Aug 1909
10-Month
50.1°F
(10.1°C)
49.8°F
(9.9°C)
0.3°F
(0.2°C)
70th Coolest Coolest since: 1908 1904
56th Warmest Warmest since: 1908 2012
Ties: 1908
Oct 1908–Aug 1909
11-Month
50.5°F
(10.3°C)
50.3°F
(10.2°C)
0.2°F
(0.1°C)
68th Coolest Coolest since: 1908 1904
58th Warmest Warmest since: 1901 2012
Ties: 1959, 1981, 2013
Sep 1908–Aug 1909
12-Month
52.0°F
(11.1°C)
51.6°F
(10.9°C)
0.4°F
(0.2°C)
75th Coolest Coolest since: 1908 1904
51st Warmest Warmest since: 1901 2012
Ties: 1935, 1981, 2008
Mar 1908–Aug 1909
18-Month
55.5°F
(13.1°C)
55.2°F
(12.9°C)
0.3°F
(0.2°C)
73rd Coolest Coolest since: 1908 1904
53rd Warmest Warmest since: 1901 2012
Ties: 1901, 1933, 1943, 1946, 1981
Sep 1907–Aug 1909
24-Month
51.7°F
(10.9°C)
51.6°F
(10.9°C)
0.1°F
(0.0°C)
65th Coolest Coolest since: 1908 1905
60th Warmest Warmest since: 1901 2017
Ties: 1948, 1993, 1996
Sep 1906–Aug 1909
36-Month
51.5°F
(10.8°C)
51.6°F
(10.9°C)
-0.1°F
(-0.1°C)
51st Coolest Coolest since: 1908 1979
73rd Warmest Warmest since: 1898 2018
Ties: 1930, 1945, 1953, 1959, 1986
Sep 1905–Aug 1909
48-Month
51.4°F
(10.8°C)
51.6°F
(10.9°C)
-0.2°F
(-0.1°C)
42nd Coolest Coolest since: 1908 1905
81st Warmest Warmest since: 1901 2019
Ties: 1951, 1952, 1953, 1966, 1973, 1984
Sep 1904–Aug 1909
60-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
28th Coolest Coolest since: 1908 1906
94th Warmest Warmest since: 1902 2020
Ties: 1902, 1960, 1961, 1983

Citing This Page

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