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 October 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, April 1978

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
April 1978
1-Month
52.7°F
(11.5°C)
51.5°F
(10.8°C)
1.2°F
(0.7°C)
80th Coolest Coolest since: 1975 1907
46th Warmest Warmest since: 1977 2010
Ties: 1968
Mar–Apr 1978
2-Month
43.2°F
(6.2°C)
45.7°F
(7.6°C)
-2.5°F
(-1.4°C)
25th Coolest Coolest since: 1975 1926
101st Warmest Warmest since: 1977 2012
Ties: 1982
Feb–Apr 1978
3-Month
34.4°F
(1.3°C)
40.2°F
(4.6°C)
-5.8°F
(-3.3°C)
1st Coolest Coolest to Date 1978
125th Warmest Warmest since: 1977 2012
Jan–Apr 1978
4-Month
29.8°F
(-1.2°C)
36.5°F
(2.5°C)
-6.7°F
(-3.7°C)
3rd Coolest Coolest since: 1912 1912
123rd Warmest Warmest since: 1977 2012
Dec 1977–Apr 1978
5-Month
29.0°F
(-1.7°C)
35.1°F
(1.7°C)
-6.1°F
(-3.4°C)
1st Coolest Coolest to Date 1978
124th Warmest Warmest since: 1977 2012
Nov 1977–Apr 1978
6-Month
31.1°F
(-0.5°C)
36.0°F
(2.2°C)
-4.9°F
(-2.7°C)
3rd Coolest Coolest since: 1912 1904
122nd Warmest Warmest since: 1977 2012
Oct 1977–Apr 1978
7-Month
34.1°F
(1.2°C)
38.7°F
(3.7°C)
-4.6°F
(-2.5°C)
3rd Coolest Coolest since: 1912 1904
122nd Warmest Warmest since: 1977 2012
Sep 1977–Apr 1978
8-Month
38.3°F
(3.5°C)
42.2°F
(5.7°C)
-3.9°F
(-2.2°C)
3rd Coolest Coolest since: 1918 1904
122nd Warmest Warmest since: 1977 2017
Aug 1977–Apr 1978
9-Month
42.0°F
(5.6°C)
45.6°F
(7.6°C)
-3.6°F
(-2.0°C)
3rd Coolest Coolest since: 1918 1904
122nd Warmest Warmest since: 1977 2017
Jul 1977–Apr 1978
10-Month
45.5°F
(7.5°C)
48.6°F
(9.2°C)
-3.1°F
(-1.7°C)
3rd Coolest Coolest since: 1918 1904
122nd Warmest Warmest since: 1977 2012
Ties: 1912
Jun 1977–Apr 1978
11-Month
47.8°F
(8.8°C)
50.6°F
(10.3°C)
-2.8°F
(-1.5°C)
3rd Coolest Coolest since: 1918 1904
122nd Warmest Warmest since: 1977 2017
May 1977–Apr 1978
12-Month
49.6°F
(9.8°C)
51.6°F
(10.9°C)
-2.0°F
(-1.1°C)
9th Coolest Coolest since: 1977 1918
116th Warmest Warmest since: 1976 2012, 2017
Ties: 1951, 2014
Nov 1976–Apr 1978
18-Month
44.1°F
(6.7°C)
46.4°F
(8.0°C)
-2.3°F
(-1.3°C)
4th Coolest Coolest since: 1918 1905
120th Warmest Warmest since: 1977 2017
May 1976–Apr 1978
24-Month
49.2°F
(9.6°C)
51.6°F
(10.9°C)
-2.4°F
(-1.3°C)
2nd Coolest Coolest since: 1905 1905
122nd Warmest Warmest since: 1977 2017
May 1975–Apr 1978
36-Month
50.7°F
(10.4°C)
51.6°F
(10.9°C)
-0.9°F
(-0.5°C)
11th Coolest Coolest since: 1970 1979
112th Warmest Warmest since: 1977 2018
Ties: 1913
May 1974–Apr 1978
48-Month
50.6°F
(10.3°C)
51.6°F
(10.9°C)
-1.0°F
(-0.6°C)
8th Coolest Coolest since: 1971 1980
114th Warmest Warmest since: 1977 2019
Ties: 1904, 1920, 1970, 1971
May 1973–Apr 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: 1972 1906
98th Warmest Warmest since: 1977 1935, 2002
Ties: 1903, 1913, 1928, 1983

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 13, 2019 from https://www.ncdc.noaa.gov/cag/