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 1949

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1949
1-Month
61.7°F
(16.5°C)
59.7°F
(15.4°C)
2.0°F
(1.1°C)
85th Coolest Coolest since: 1948 1907
41st Warmest Warmest since: 1944 1977
Ties: 1951
Apr–May 1949
2-Month
54.8°F
(12.7°C)
54.1°F
(12.3°C)
0.7°F
(0.4°C)
77th Coolest Coolest since: 1947 1907
49th Warmest Warmest since: 1948 1977
Mar–May 1949
3-Month
48.4°F
(9.1°C)
47.8°F
(8.8°C)
0.6°F
(0.3°C)
71st Coolest Coolest since: 1948 1960
55th Warmest Warmest since: 1946 2012
Ties: 1895, 1970
Feb–May 1949
4-Month
42.2°F
(5.7°C)
42.0°F
(5.6°C)
0.2°F
(0.1°C)
71st Coolest Coolest since: 1948 1947
55th Warmest Warmest since: 1946 2012
Ties: 1959, 1970
Jan–May 1949
5-Month
38.2°F
(3.4°C)
37.6°F
(3.1°C)
0.6°F
(0.3°C)
74th Coolest Coolest since: 1948 1912
52nd Warmest Warmest since: 1946 2012
Ties: 1985
Dec 1948–May 1949
6-Month
36.2°F
(2.3°C)
35.4°F
(1.9°C)
0.8°F
(0.4°C)
79th Coolest Coolest since: 1948 1979
46th Warmest Warmest since: 1946 2012
Ties: 1968, 1988
Nov 1948–May 1949
7-Month
36.7°F
(2.6°C)
35.6°F
(2.0°C)
1.1°F
(0.6°C)
85th Coolest Coolest since: 1948 1904
40th Warmest Warmest since: 1946 2012
Ties: 1941
Oct 1948–May 1949
8-Month
38.3°F
(3.5°C)
37.7°F
(3.2°C)
0.6°F
(0.3°C)
81st Coolest Coolest since: 1948 1912
44th Warmest Warmest since: 1946 2012
Ties: 1896, 2018
Sep 1948–May 1949
9-Month
41.4°F
(5.2°C)
40.5°F
(4.7°C)
0.9°F
(0.5°C)
84th Coolest Coolest since: 1948 1904
41st Warmest Warmest since: 1946 2012
Ties: 1946
Aug 1948–May 1949
10-Month
44.5°F
(6.9°C)
43.6°F
(6.4°C)
0.9°F
(0.5°C)
87th Coolest Coolest since: 1947 1904
38th Warmest Warmest since: 1948 2012
Ties: 1957
Jul 1948–May 1949
11-Month
47.1°F
(8.4°C)
46.3°F
(7.9°C)
0.8°F
(0.5°C)
88th Coolest Coolest since: 1948 1904
37th Warmest Warmest since: 1948 2012
Ties: 1896, 1948, 1989
Jun 1948–May 1949
12-Month
48.9°F
(9.4°C)
48.3°F
(9.1°C)
0.6°F
(0.3°C)
81st Coolest Coolest since: 1948 1904
44th Warmest Warmest since: 1942 2012
Ties: 1937, 1953
Dec 1947–May 1949
18-Month
44.3°F
(6.8°C)
43.9°F
(6.6°C)
0.4°F
(0.2°C)
75th Coolest Coolest since: 1948 1918
49th Warmest Warmest since: 1947 2017
Ties: 1909, 1928, 1947, 1957, 1995
Jun 1947–May 1949
24-Month
48.8°F
(9.3°C)
48.2°F
(9.0°C)
0.6°F
(0.3°C)
86th Coolest Coolest since: 1948 1905
38th Warmest Warmest since: 1942 2017
Ties: 1974, 1998
Jun 1946–May 1949
36-Month
48.4°F
(9.1°C)
48.2°F
(9.0°C)
0.2°F
(0.1°C)
71st Coolest Coolest since: 1948 1905, 1918, 1979
52nd Warmest Warmest since: 1946 2000
Ties: 1898, 1983
Jun 1945–May 1949
48-Month
48.4°F
(9.1°C)
48.2°F
(9.0°C)
0.2°F
(0.1°C)
67th Coolest Coolest since: 1948 1980
55th Warmest Warmest since: 1948 2001, 2002, 2007
Ties: 1925, 1948, 1950, 1984, 2016
Jun 1944–May 1949
60-Month
48.5°F
(9.2°C)
48.2°F
(9.0°C)
0.3°F
(0.2°C)
69th Coolest Coolest since: 1948 1907, 1908
52nd Warmest Warmest since: 1946 2002
Ties: 1940, 1985, 1994

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/