Statewide Rankings

Statewide Data Info
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Illinois

Average Temperature Rankings, July 1978

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
July 1978
1-Month		75.1°F
(23.9°C)		75.6°F
(24.2°C)		-0.5°F
(-0.3°C)		56th Coolest
Coolest since:
2009, 2014
73rd Warmest
Warmest since:
1936
Ties: 1925, 1997
Jun–Jul 1978
2-Month		73.6°F
(23.1°C)		73.5°F
(23.1°C)		0.1°F
(0.0°C)		63rd Coolest
Coolest since:
1915, 1958
66th Warmest
Warmest since:
1934
Ties: 1899, 1956, 1993, 1998
May–Jul 1978
3-Month		69.3°F
(20.7°C)		69.7°F
(20.9°C)		-0.4°F
(-0.2°C)		52nd Coolest
Coolest since:
1924
77th Warmest
Warmest since:
1934
Ties: 1938, 1985
Apr–Jul 1978
4-Month		65.2°F
(18.4°C)		65.2°F
(18.4°C)		0.0°F
(0.0°C)		60th Coolest
Coolest since:
1907
69th Warmest
Warmest since:
1934
Ties: 1906, 1946, 1956
Mar–Jul 1978
5-Month		58.8°F
(14.9°C)		60.1°F
(15.6°C)		-1.3°F
(-0.7°C)		22nd Coolest
Coolest since:
1960
107th Warmest
Warmest since:
2012
Ties: 1997, 2014
Feb–Jul 1978
6-Month		51.9°F
(11.1°C)		55.0°F
(12.8°C)		-3.1°F
(-1.7°C)		5th Coolest
Coolest since:
1947
124th Warmest
Warmest since:
2012
Jan–Jul 1978
7-Month		46.7°F
(8.2°C)		50.7°F
(10.4°C)		-4.0°F
(-2.2°C)		3rd Coolest
Coolest since:
1912
126th Warmest
Warmest since:
2012
Dec 1977–Jul 1978
8-Month		44.1°F
(6.7°C)		48.1°F
(8.9°C)		-4.0°F
(-2.2°C)		2nd Coolest
Coolest since:
1904
126th Warmest
Warmest since:
2012
Nov 1977–Jul 1978
9-Month		43.8°F
(6.6°C)		47.2°F
(8.4°C)		-3.4°F
(-1.8°C)		3rd Coolest
Coolest since:
1904
125th Warmest
Warmest since:
2012
Oct 1977–Jul 1978
10-Month		44.7°F
(7.1°C)		48.0°F
(8.9°C)		-3.3°F
(-1.8°C)		3rd Coolest
Coolest since:
1904
125th Warmest
Warmest since:
2012
Sep 1977–Jul 1978
11-Month		46.7°F
(8.2°C)		49.7°F
(9.8°C)		-3.0°F
(-1.6°C)		2nd Coolest
Coolest since:
1904
126th Warmest
Warmest since:
2012
Aug 1977–Jul 1978
12-Month		48.8°F
(9.3°C)		51.6°F
(10.9°C)		-2.8°F
(-1.6°C)		2nd Coolest
Coolest since:
1904
126th Warmest
Warmest since:
2012
Feb 1977–Jul 1978
18-Month		51.9°F
(11.1°C)		52.7°F
(11.5°C)		-0.8°F
(-0.4°C)		23rd Coolest
Coolest since:
1918
105th Warmest
Warmest since:
2012
Ties: 1903, 1906, 1908, 1913, 1927, 1929
Aug 1976–Jul 1978
24-Month		49.4°F
(9.7°C)		51.6°F
(10.9°C)		-2.2°F
(-1.2°C)		3rd Coolest
Coolest since:
1905
124th Warmest
Warmest since:
2017
Aug 1975–Jul 1978
36-Month		50.6°F
(10.3°C)		51.6°F
(10.9°C)		-1.0°F
(-0.6°C)		8th Coolest
Coolest since:
1979
118th Warmest
Warmest since:
2018
Aug 1974–Jul 1978
48-Month		50.7°F
(10.4°C)		51.6°F
(10.9°C)		-0.9°F
(-0.5°C)		11th Coolest
Coolest since:
1905, 1980
114th Warmest
Warmest since:
2019
Ties: 1971, 1982
Aug 1973–Jul 1978
60-Month		51.1°F
(10.6°C)		51.6°F
(10.9°C)		-0.5°F
(-0.3°C)		23rd Coolest
Coolest since:
1906
101st Warmest
Warmest since:
2020
Ties: 1909, 1912, 1927, 1929, 1983

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