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 1987

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1987
1-Month
64.9°F
(18.3°C)
59.7°F
(15.4°C)
5.2°F
(2.9°C)
114th Coolest Coolest since: 1986 1907
12th Warmest Warmest since: 1982 1977
Apr–May 1987
2-Month
58.4°F
(14.7°C)
54.0°F
(12.2°C)
4.4°F
(2.5°C)
118th Coolest Coolest since: 1986 1907
8th Warmest Warmest since: 1985 1977
Ties: 2001
Mar–May 1987
3-Month
52.7°F
(11.5°C)
47.9°F
(8.8°C)
4.8°F
(2.7°C)
121st Coolest Coolest since: 1986 1960
5th Warmest Warmest since: 1977 2012
Feb–May 1987
4-Month
47.9°F
(8.8°C)
41.9°F
(5.5°C)
6.0°F
(3.3°C)
124th Coolest Coolest since: 1986 1947
2nd Warmest Warmest to Date 2012
Jan–May 1987
5-Month
43.2°F
(6.2°C)
37.5°F
(3.1°C)
5.7°F
(3.1°C)
122nd Coolest Coolest since: 1986 1912
4th Warmest Warmest since: 1921 2012
Dec 1986–May 1987
6-Month
40.7°F
(4.8°C)
35.4°F
(1.9°C)
5.3°F
(2.9°C)
122nd Coolest Coolest since: 1986 1979
3rd Warmest Warmest to Date 2012
Nov 1986–May 1987
7-Month
39.7°F
(4.3°C)
35.6°F
(2.0°C)
4.1°F
(2.3°C)
117th Coolest Coolest since: 1986 1904
8th Warmest Warmest since: 1921 2012
Oct 1986–May 1987
8-Month
41.3°F
(5.2°C)
37.7°F
(3.2°C)
3.6°F
(2.0°C)
117th Coolest Coolest since: 1986 1912
8th Warmest Warmest since: 1932 2012
Ties: 1932, 1999
Sep 1986–May 1987
9-Month
44.0°F
(6.7°C)
40.6°F
(4.8°C)
3.4°F
(1.9°C)
116th Coolest Coolest since: 1986 1904
9th Warmest Warmest since: 1932 2012
Ties: 2000
Aug 1986–May 1987
10-Month
46.3°F
(7.9°C)
43.6°F
(6.4°C)
2.7°F
(1.5°C)
114th Coolest Coolest since: 1986 1904
11th Warmest Warmest since: 1932 2012
Jul 1986–May 1987
11-Month
48.9°F
(9.4°C)
46.3°F
(7.9°C)
2.6°F
(1.5°C)
114th Coolest Coolest since: 1986 1904
11th Warmest Warmest since: 1932 2012
Jun 1986–May 1987
12-Month
50.7°F
(10.4°C)
48.3°F
(9.1°C)
2.4°F
(1.3°C)
114th Coolest Coolest since: 1986 1904
11th Warmest Warmest since: 1932 2012
Dec 1985–May 1987
18-Month
45.6°F
(7.6°C)
44.0°F
(6.7°C)
1.6°F
(0.9°C)
105th Coolest Coolest since: 1986 1918
19th Warmest Warmest since: 1955 2017
Ties: 1934, 1955, 1991
Jun 1985–May 1987
24-Month
49.1°F
(9.5°C)
48.2°F
(9.0°C)
0.9°F
(0.5°C)
96th Coolest Coolest since: 1986 1905
28th Warmest Warmest since: 1955 2017
Ties: 1921, 1923, 1938, 1989
Jun 1984–May 1987
36-Month
49.1°F
(9.5°C)
48.2°F
(9.0°C)
0.9°F
(0.5°C)
93rd Coolest Coolest since: 1986 1905, 1918, 1979
30th Warmest Warmest since: 1956 2000
Ties: 1921, 1940, 1941, 1988
Jun 1983–May 1987
48-Month
48.9°F
(9.4°C)
48.2°F
(9.0°C)
0.7°F
(0.4°C)
86th Coolest Coolest since: 1986 1980
36th Warmest Warmest since: 1957 2001, 2002, 2007
Ties: 1993
Jun 1982–May 1987
60-Month
48.9°F
(9.4°C)
48.1°F
(8.9°C)
0.8°F
(0.5°C)
86th Coolest Coolest since: 1986 1907, 1908
35th Warmest Warmest since: 1958 2002
Ties: 1932, 1933, 1943, 2011, 2015

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 20, 2019 from https://www.ncdc.noaa.gov/cag/