Climate at a Glance

Divisional 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, Climate Division 1. Northwest

Average Temperature Rankings, April 2018

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
April 2018
1-Month
40.4°F
(4.7°C)
48.3°F
(9.1°C)
-7.9°F
(-4.4°C)
1st Coolest Coolest to Date 2018
125th Warmest Warmest since: 2017 2010
Mar–Apr 2018
2-Month
38.2°F
(3.4°C)
42.0°F
(5.6°C)
-3.8°F
(-2.2°C)
10th Coolest Coolest since: 2013 1926
116th Warmest Warmest since: 2017 2012
Ties: 2013
Feb–Apr 2018
3-Month
33.5°F
(0.8°C)
36.0°F
(2.2°C)
-2.5°F
(-1.4°C)
28th Coolest Coolest since: 2015 1912, 2014
98th Warmest Warmest since: 2017 2012
Ties: 1913, 1926, 1962, 2013
Jan–Apr 2018
4-Month
30.2°F
(-1.0°C)
31.9°F
(-0.1°C)
-1.7°F
(-0.9°C)
38th Coolest Coolest since: 2015 1912
88th Warmest Warmest since: 2017 2012
Dec 2017–Apr 2018
5-Month
29.3°F
(-1.5°C)
30.6°F
(-0.8°C)
-1.3°F
(-0.7°C)
31st Coolest Coolest since: 2014 1979
94th Warmest Warmest since: 2017 2012
Ties: 2001
Nov 2017–Apr 2018
6-Month
30.6°F
(-0.8°C)
31.7°F
(-0.2°C)
-1.1°F
(-0.6°C)
32nd Coolest Coolest since: 2015 1912
93rd Warmest Warmest since: 2017 2012
Ties: 1971, 1994
Oct 2017–Apr 2018
7-Month
34.2°F
(1.2°C)
34.6°F
(1.4°C)
-0.4°F
(-0.2°C)
47th Coolest Coolest since: 2015 1912
78th Warmest Warmest since: 2017 2012
Ties: 1896, 1952
Sep 2017–Apr 2018
8-Month
38.2°F
(3.4°C)
38.2°F
(3.4°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 2015 1904, 1912
70th Warmest Warmest since: 2017 2017
Ties: 1906, 1933, 1988
Aug 2017–Apr 2018
9-Month
41.5°F
(5.3°C)
41.8°F
(5.4°C)
-0.3°F
(-0.1°C)
42nd Coolest Coolest since: 2015 1904
83rd Warmest Warmest since: 2017 2017
Ties: 1924, 1940, 1969, 1980
Jul 2017–Apr 2018
10-Month
44.7°F
(7.1°C)
45.0°F
(7.2°C)
-0.3°F
(-0.1°C)
44th Coolest Coolest since: 2015 1904
81st Warmest Warmest since: 2017 2012
Ties: 1903
Jun 2017–Apr 2018
11-Month
47.1°F
(8.4°C)
47.2°F
(8.4°C)
-0.1°F
(0.0°C)
50th Coolest Coolest since: 2015 1904
75th Warmest Warmest since: 2017 2012, 2017
Ties: 1944, 1947, 1956, 1966
May 2017–Apr 2018
12-Month
48.0°F
(8.9°C)
48.2°F
(9.0°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 2015 1918
78th Warmest Warmest since: 2017 2012, 2017
Ties: 1897, 1902, 1906, 1927, 1928
Nov 2016–Apr 2018
18-Month
44.5°F
(6.9°C)
42.6°F
(5.9°C)
1.9°F
(1.0°C)
109th Coolest Coolest since: 2016 1918
15th Warmest Warmest since: 2017 2017
Ties: 1942
May 2016–Apr 2018
24-Month
50.3°F
(10.2°C)
48.2°F
(9.0°C)
2.1°F
(1.2°C)
114th Coolest Coolest since: 2016 1905
10th Warmest Warmest since: 2017 2017
May 2015–Apr 2018
36-Month
50.7°F
(10.4°C)
48.1°F
(8.9°C)
2.6°F
(1.5°C)
121st Coolest Coolest since: 2017 1918
2nd Warmest Warmest since: 2000 2000
May 2014–Apr 2018
48-Month
49.8°F
(9.9°C)
48.1°F
(8.9°C)
1.7°F
(1.0°C)
111th Coolest Coolest since: 2017 1980
11th Warmest Warmest since: 2013 2002
Ties: 2000, 2003
May 2013–Apr 2018
60-Month
49.0°F
(9.4°C)
48.1°F
(8.9°C)
0.9°F
(0.5°C)
93rd Coolest Coolest since: 2015 1920
28th Warmest Warmest since: 2017 2002, 2006
Ties: 1925, 1933, 1936, 1943, 1958, 1993, 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published November 2019, retrieved on November 17, 2019 from https://www.ncdc.noaa.gov/cag/