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 1899

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1899
1-Month
60.3°F
(15.7°C)
59.7°F
(15.4°C)
0.6°F
(0.3°C)
68th Coolest Coolest since: 1898 1907
58th Warmest Warmest since: 1896 1977
Ties: 1906, 1933, 1950
Apr–May 1899
2-Month
55.4°F
(13.0°C)
54.0°F
(12.2°C)
1.4°F
(0.8°C)
89th Coolest Coolest since: 1898 1907
37th Warmest Warmest since: 1896 1977
Ties: 1915
Mar–May 1899
3-Month
46.2°F
(7.9°C)
47.9°F
(8.8°C)
-1.7°F
(-0.9°C)
27th Coolest Coolest since: 1897 1960
99th Warmest Warmest since: 1898 2012
Ties: 1931, 1966, 1978, 1997
Feb–May 1899
4-Month
38.2°F
(3.4°C)
41.9°F
(5.5°C)
-3.7°F
(-2.1°C)
9th Coolest Coolest to Date 1947
117th Warmest Warmest since: 1898 2012
Ties: 1923
Jan–May 1899
5-Month
34.5°F
(1.4°C)
37.5°F
(3.1°C)
-3.0°F
(-1.7°C)
11th Coolest Coolest since: 1895 1912
115th Warmest Warmest since: 1898 2012
Dec 1898–May 1899
6-Month
32.1°F
(0.1°C)
35.4°F
(1.9°C)
-3.3°F
(-1.8°C)
9th Coolest Coolest to Date 1979
116th Warmest Warmest since: 1898 2012
Nov 1898–May 1899
7-Month
32.1°F
(0.1°C)
35.6°F
(2.0°C)
-3.5°F
(-1.9°C)
8th Coolest Coolest to Date 1904
117th Warmest Warmest since: 1898 2012
Oct 1898–May 1899
8-Month
34.1°F
(1.2°C)
37.7°F
(3.2°C)
-3.6°F
(-2.0°C)
6th Coolest Coolest to Date 1912
119th Warmest Warmest since: 1898 2012
Sep 1898–May 1899
9-Month
37.6°F
(3.1°C)
40.6°F
(4.8°C)
-3.0°F
(-1.7°C)
7th Coolest Coolest to Date 1904
118th Warmest Warmest since: 1898 2012
Aug 1898–May 1899
10-Month
40.9°F
(4.9°C)
43.7°F
(6.5°C)
-2.8°F
(-1.6°C)
6th Coolest Coolest to Date 1904
119th Warmest Warmest since: 1898 2012
Ties: 1979
Jul 1898–May 1899
11-Month
43.8°F
(6.6°C)
46.3°F
(7.9°C)
-2.5°F
(-1.3°C)
7th Coolest Coolest to Date 1904
118th Warmest Warmest since: 1898 2012
Jun 1898–May 1899
12-Month
46.1°F
(7.8°C)
48.3°F
(9.1°C)
-2.2°F
(-1.3°C)
8th Coolest Coolest to Date 1904
117th Warmest Warmest since: 1898 2012
Ties: 1905
Dec 1897–May 1899
18-Month
42.4°F
(5.8°C)
43.9°F
(6.6°C)
-1.5°F
(-0.8°C)
12th Coolest Coolest to Date 1918
112th Warmest Warmest since: 1898 2017
Ties: 1936, 1963, 1997
Jun 1897–May 1899
24-Month
47.4°F
(8.6°C)
48.2°F
(9.0°C)
-0.8°F
(-0.4°C)
25th Coolest Coolest to Date 1905
99th Warmest Warmest since: 1898 2017
Ties: 1970
Jun 1896–May 1899
36-Month
47.4°F
(8.6°C)
48.2°F
(9.0°C)
-0.8°F
(-0.4°C)
16th Coolest Coolest to Date 1905, 1918, 1979
107th Warmest Warmest since: 1898 2000
Ties: 1913, 1926, 1961, 1963, 1970, 1978, 2015
Jun 1895–May 1899
48-Month
47.8°F
(8.8°C)
48.2°F
(9.0°C)
-0.4°F
(-0.2°C)
35th Coolest Coolest to Date 1980
87th Warmest Warmest to Date 2001, 2002, 2007
Ties: 1910, 1965, 1969

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 22, 2019 from https://www.ncdc.noaa.gov/cag/