Statewide Rankings

Statewide Data Info
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Illinois

Average Temperature Rankings, August 1978

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
August 1978
1-Month		73.0°F
(22.8°C)		73.4°F
(23.0°C)		-0.4°F
(-0.2°C)		52nd Coolest
Coolest since:
1915
77th Warmest
Warmest since:
1947
Ties: 1921, 1923, 1969
Jul–Aug 1978
2-Month		74.1°F
(23.4°C)		74.5°F
(23.6°C)		-0.4°F
(-0.2°C)		51st Coolest
Coolest since:
1915
78th Warmest
Warmest since:
1936
Ties: 1897, 1898, 1922, 1939, 1942, 1968
Jun–Aug 1978
3-Month		73.4°F
(23.0°C)		73.5°F
(23.1°C)		-0.1°F
(-0.1°C)		57th Coolest
Coolest since:
1915
72nd Warmest
Warmest since:
1936
Ties: 1948, 1966, 1977, 1986, 2001
May–Aug 1978
4-Month		70.2°F
(21.2°C)		70.6°F
(21.4°C)		-0.4°F
(-0.2°C)		48th Coolest
Coolest since:
1915
81st Warmest
Warmest since:
1936
Ties: 1902, 1982, 2014
Apr–Aug 1978
5-Month		66.7°F
(19.3°C)		66.8°F
(19.3°C)		-0.1°F
(0.0°C)		54th Coolest
Coolest since:
1907
75th Warmest
Warmest since:
1934
Ties: 1969
Mar–Aug 1978
6-Month		61.2°F
(16.2°C)		62.3°F
(16.8°C)		-1.1°F
(-0.6°C)		25th Coolest
Coolest since:
1950, 1960
104th Warmest
Warmest since:
2012
Ties: 1909, 1940, 1965, 1969, 1971, 1982
Feb–Aug 1978
7-Month		54.9°F
(12.7°C)		57.6°F
(14.2°C)		-2.7°F
(-1.5°C)		5th Coolest
Coolest since:
1904
124th Warmest
Warmest since:
2012
Jan–Aug 1978
8-Month		50.0°F
(10.0°C)		53.6°F
(12.0°C)		-3.6°F
(-2.0°C)		4th Coolest
Coolest since:
1912
125th Warmest
Warmest since:
2012
Dec 1977–Aug 1978
9-Month		47.3°F
(8.5°C)		50.9°F
(10.5°C)		-3.6°F
(-2.0°C)		2nd Coolest
Coolest since:
1904
126th Warmest
Warmest since:
2012
Nov 1977–Aug 1978
10-Month		46.8°F
(8.2°C)		49.9°F
(9.9°C)		-3.1°F
(-1.7°C)		3rd Coolest
Coolest since:
1904
125th Warmest
Warmest since:
2012
Oct 1977–Aug 1978
11-Month		47.2°F
(8.4°C)		50.3°F
(10.2°C)		-3.1°F
(-1.8°C)		3rd Coolest
Coolest since:
1904
125th Warmest
Warmest since:
2012
Sep 1977–Aug 1978
12-Month		48.9°F
(9.4°C)		51.6°F
(10.9°C)		-2.7°F
(-1.5°C)		2nd Coolest
Coolest since:
1904
126th Warmest
Warmest since:
2012
Ties: 1912
Mar 1977–Aug 1978
18-Month		54.4°F
(12.4°C)		55.2°F
(12.9°C)		-0.8°F
(-0.5°C)		28th Coolest
Coolest since:
1904
100th Warmest
Warmest since:
2012
Ties: 1962, 1967
Sep 1976–Aug 1978
24-Month		49.5°F
(9.7°C)		51.6°F
(10.9°C)		-2.1°F
(-1.2°C)		3rd Coolest
Coolest since:
1905
124th Warmest
Warmest since:
2017
Ties: 1918
Sep 1975–Aug 1978
36-Month		50.5°F
(10.3°C)		51.6°F
(10.9°C)		-1.1°F
(-0.6°C)		7th Coolest
Coolest since:
1979
119th Warmest
Warmest since:
2018
Sep 1974–Aug 1978
48-Month		50.7°F
(10.4°C)		51.6°F
(10.9°C)		-0.9°F
(-0.5°C)		10th Coolest
Coolest since:
1905
115th Warmest
Warmest since:
2019
Ties: 1963, 1970, 1982
Sep 1973–Aug 1978
60-Month		51.1°F
(10.6°C)		51.6°F
(10.9°C)		-0.5°F
(-0.3°C)		21st Coolest
Coolest since:
1906
103rd Warmest
Warmest since:
2020
Ties: 1912, 1929, 1930, 1964, 1972, 1997

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