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 1977

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1977
1-Month
67.6°F
(19.8°C)
59.7°F
(15.4°C)
7.9°F
(4.4°C)
125th Coolest Coolest since: 1976 1907
1st Warmest Warmest to Date 1977
Apr–May 1977
2-Month
61.4°F
(16.3°C)
54.1°F
(12.3°C)
7.3°F
(4.0°C)
125th Coolest Coolest since: 1976 1907
1st Warmest Warmest to Date 1977
Mar–May 1977
3-Month
55.0°F
(12.8°C)
47.9°F
(8.8°C)
7.1°F
(4.0°C)
124th Coolest Coolest since: 1976 1960
2nd Warmest Warmest to Date 2012
Feb–May 1977
4-Month
47.4°F
(8.6°C)
41.9°F
(5.5°C)
5.5°F
(3.1°C)
122nd Coolest Coolest since: 1976 1947
4th Warmest Warmest to Date 2012
Jan–May 1977
5-Month
39.2°F
(4.0°C)
37.5°F
(3.1°C)
1.7°F
(0.9°C)
94th Coolest Coolest since: 1975 1912
32nd Warmest Warmest since: 1976 2012
Ties: 1922, 1925, 1955, 2001
Dec 1976–May 1977
6-Month
35.4°F
(1.9°C)
35.4°F
(1.9°C)
0.0°F
(0.0°C)
62nd Coolest Coolest since: 1975 1979
63rd Warmest Warmest since: 1976 2012
Ties: 1986
Nov 1976–May 1977
7-Month
34.6°F
(1.4°C)
35.7°F
(2.1°C)
-1.1°F
(-0.7°C)
29th Coolest Coolest since: 1971 1904
96th Warmest Warmest since: 1976 2012
Ties: 1907, 1956
Oct 1976–May 1977
8-Month
36.0°F
(2.2°C)
37.7°F
(3.2°C)
-1.7°F
(-1.0°C)
16th Coolest Coolest since: 1960 1912
109th Warmest Warmest since: 1976 2012
Ties: 1982
Sep 1976–May 1977
9-Month
38.8°F
(3.8°C)
40.6°F
(4.8°C)
-1.8°F
(-1.0°C)
15th Coolest Coolest since: 1960 1904
110th Warmest Warmest since: 1976 2012
Ties: 1960
Aug 1976–May 1977
10-Month
41.8°F
(5.4°C)
43.6°F
(6.4°C)
-1.8°F
(-1.0°C)
13th Coolest Coolest since: 1951 1904
112th Warmest Warmest since: 1976 2012
Jul 1976–May 1977
11-Month
44.7°F
(7.1°C)
46.3°F
(7.9°C)
-1.6°F
(-0.8°C)
12th Coolest Coolest since: 1951 1904
113th Warmest Warmest since: 1976 2012
Ties: 1926
Jun 1976–May 1977
12-Month
46.8°F
(8.2°C)
48.2°F
(9.0°C)
-1.4°F
(-0.8°C)
13th Coolest Coolest since: 1963 1904
112th Warmest Warmest since: 1976 2012
Ties: 1926, 1963, 1993
Dec 1975–May 1977
18-Month
43.8°F
(6.6°C)
43.9°F
(6.6°C)
-0.1°F
(0.0°C)
52nd Coolest Coolest since: 1975 1918
72nd Warmest Warmest since: 1976 2017
Ties: 1911, 1920, 1948, 1958, 1973, 1985
Jun 1975–May 1977
24-Month
48.3°F
(9.1°C)
48.2°F
(9.0°C)
0.1°F
(0.1°C)
59th Coolest Coolest since: 1972 1905
65th Warmest Warmest since: 1976 2017
Ties: 1901, 1958, 1972, 1996
Jun 1974–May 1977
36-Month
48.0°F
(8.9°C)
48.1°F
(8.9°C)
-0.1°F
(0.0°C)
47th Coolest Coolest since: 1972 1905, 1918, 1979
76th Warmest Warmest since: 1976 2000
Ties: 1965, 1984, 1994
Jun 1973–May 1977
48-Month
48.3°F
(9.1°C)
48.1°F
(8.9°C)
0.2°F
(0.2°C)
57th Coolest Coolest since: 1973 1980
65th Warmest Warmest since: 1976 2001, 2002, 2007
Ties: 1947, 1983, 1985, 1995
Jun 1972–May 1977
60-Month
48.3°F
(9.1°C)
48.1°F
(8.9°C)
0.2°F
(0.2°C)
58th Coolest Coolest since: 1975 1907, 1908
63rd Warmest Warmest since: 1976 2002
Ties: 1959, 1975, 1984, 1998

Citing This Page

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