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


Illinois, Climate Division 1. Northwest

Average Temperature Rankings, May 2019

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 2019
1-Month
58.0°F
(14.4°C)
59.7°F
(15.4°C)
-1.7°F
(-1.0°C)
40th Coolest Coolest since: 2008 1907
86th Warmest Warmest since: 2018 1977
Ties: 1920
Apr–May 2019
2-Month
53.4°F
(11.9°C)
54.0°F
(12.2°C)
-0.6°F
(-0.3°C)
39th Coolest Coolest since: 2008 1907
87th Warmest Warmest since: 2018 1977
Ties: 1905, 1916, 1956, 1968, 2008
Mar–May 2019
3-Month
46.8°F
(8.2°C)
47.8°F
(8.8°C)
-1.0°F
(-0.6°C)
42nd Coolest Coolest since: 2014 1960
84th Warmest Warmest since: 2018 2012
Ties: 1944
Feb–May 2019
4-Month
40.5°F
(4.7°C)
41.9°F
(5.5°C)
-1.4°F
(-0.8°C)
38th Coolest Coolest since: 2015 1947
88th Warmest Warmest since: 2018 2012
Ties: 1926
Jan–May 2019
5-Month
36.2°F
(2.3°C)
37.5°F
(3.1°C)
-1.3°F
(-0.8°C)
33rd Coolest Coolest since: 2014 1912
93rd Warmest Warmest since: 2018 2012
Ties: 1907, 1916, 1937, 1970, 2008
Dec 2018–May 2019
6-Month
35.2°F
(1.8°C)
35.4°F
(1.9°C)
-0.2°F
(-0.1°C)
55th Coolest Coolest since: 2014 1979
70th Warmest Warmest since: 2018 2012
Ties: 1945, 1948
Nov 2018–May 2019
7-Month
34.8°F
(1.6°C)
35.6°F
(2.0°C)
-0.8°F
(-0.4°C)
36th Coolest Coolest since: 2015 1904
89th Warmest Warmest since: 2018 2012
Ties: 1994
Oct 2018–May 2019
8-Month
36.7°F
(2.6°C)
37.7°F
(3.2°C)
-1.0°F
(-0.6°C)
28th Coolest Coolest since: 2015 1912
97th Warmest Warmest since: 2018 2012
Ties: 1897, 1924, 1965, 1971, 2015
Sep 2018–May 2019
9-Month
40.1°F
(4.5°C)
40.6°F
(4.8°C)
-0.5°F
(-0.3°C)
40th Coolest Coolest since: 2015 1904
85th Warmest Warmest since: 2018 2012
Ties: 1901, 1916, 1950, 1993
Aug 2018–May 2019
10-Month
43.4°F
(6.3°C)
43.7°F
(6.5°C)
-0.3°F
(-0.2°C)
49th Coolest Coolest since: 2015 1904
76th Warmest Warmest since: 2018 2012
Ties: 1907, 1969, 1980
Jul 2018–May 2019
11-Month
46.0°F
(7.8°C)
46.3°F
(7.9°C)
-0.3°F
(-0.1°C)
45th Coolest Coolest since: 2015 1904
80th Warmest Warmest since: 2018 2012
Ties: 1927, 1930, 1967, 1980, 2009
Jun 2018–May 2019
12-Month
48.2°F
(9.0°C)
48.2°F
(9.0°C)
0.0°F
(0.0°C)
56th Coolest Coolest since: 2015 1904
69th Warmest Warmest since: 2018 2012
Ties: 1901, 1909, 1923
Dec 2017–May 2019
18-Month
44.0°F
(6.7°C)
43.9°F
(6.6°C)
0.1°F
(0.1°C)
59th Coolest Coolest since: 2015 1918
65th Warmest Warmest since: 2018 2017
Ties: 1943, 1946, 1972, 1986
Jun 2017–May 2019
24-Month
48.5°F
(9.2°C)
48.2°F
(9.0°C)
0.3°F
(0.2°C)
70th Coolest Coolest since: 2015 1905
54th Warmest Warmest since: 2018 2017
Ties: 1946, 1993
Jun 2016–May 2019
36-Month
49.8°F
(9.9°C)
48.2°F
(9.0°C)
1.6°F
(0.9°C)
109th Coolest Coolest since: 2016 1905, 1918, 1979
14th Warmest Warmest since: 2018 2000
Ties: 1923
Jun 2015–May 2019
48-Month
50.2°F
(10.1°C)
48.1°F
(8.9°C)
2.1°F
(1.2°C)
118th Coolest Coolest since: 2018 1980
4th Warmest Warmest since: 2007 2001, 2002, 2007
Jun 2014–May 2019
60-Month
49.6°F
(9.8°C)
48.1°F
(8.9°C)
1.5°F
(0.9°C)
113th Coolest Coolest since: 2018 1907, 1908
8th Warmest Warmest since: 2013 2002
Ties: 2001, 2013

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 21, 2019 from https://www.ncdc.noaa.gov/cag/