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 1966

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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1966
1-Month
54.7°F
(12.6°C)
59.7°F
(15.4°C)
-5.0°F
(-2.8°C)
8th Coolest Coolest since: 1947 1907
118th Warmest Warmest since: 1965 1977
Ties: 1997
Apr–May 1966
2-Month
50.2°F
(10.1°C)
54.0°F
(12.2°C)
-3.8°F
(-2.1°C)
6th Coolest Coolest since: 1961 1907
120th Warmest Warmest since: 1965 1977
Ties: 1983
Mar–May 1966
3-Month
46.2°F
(7.9°C)
47.9°F
(8.8°C)
-1.7°F
(-0.9°C)
27th Coolest Coolest since: 1965 1960
99th Warmest Warmest since: 1964 2012
Ties: 1899, 1931, 1978, 1997
Feb–May 1966
4-Month
40.7°F
(4.8°C)
41.9°F
(5.5°C)
-1.2°F
(-0.7°C)
41st Coolest Coolest since: 1965 1947
85th Warmest Warmest since: 1964 2012
Ties: 1971
Jan–May 1966
5-Month
35.4°F
(1.9°C)
37.5°F
(3.1°C)
-2.1°F
(-1.2°C)
20th Coolest Coolest since: 1963 1912
106th Warmest Warmest since: 1965 2012
Ties: 1901
Dec 1965–May 1966
6-Month
35.0°F
(1.7°C)
35.4°F
(1.9°C)
-0.4°F
(-0.2°C)
48th Coolest Coolest since: 1965 1979
77th Warmest Warmest since: 1964 2012
Ties: 1956, 1967
Nov 1965–May 1966
7-Month
35.6°F
(2.0°C)
35.7°F
(2.1°C)
-0.1°F
(-0.1°C)
59th Coolest Coolest since: 1965 1904
66th Warmest Warmest since: 1964 2012
Ties: 1967, 1975, 1993
Oct 1965–May 1966
8-Month
37.6°F
(3.1°C)
37.7°F
(3.2°C)
-0.1°F
(-0.1°C)
55th Coolest Coolest since: 1965 1912
70th Warmest Warmest since: 1964 2012
Ties: 1909, 1930, 1975, 2001, 2003, 2008
Sep 1965–May 1966
9-Month
40.3°F
(4.6°C)
40.5°F
(4.7°C)
-0.2°F
(-0.1°C)
50th Coolest Coolest since: 1965 1904
75th Warmest Warmest since: 1964 2012
Ties: 1944, 1968, 2009
Aug 1965–May 1966
10-Month
43.3°F
(6.3°C)
43.7°F
(6.5°C)
-0.4°F
(-0.2°C)
45th Coolest Coolest since: 1965 1904
80th Warmest Warmest since: 1964 2012
Ties: 1927, 1930, 2009
Jul 1965–May 1966
11-Month
45.9°F
(7.7°C)
46.3°F
(7.9°C)
-0.4°F
(-0.2°C)
41st Coolest Coolest since: 1965 1904
84th Warmest Warmest since: 1964 2012
Ties: 1907, 1940, 1969
Jun 1965–May 1966
12-Month
47.8°F
(8.8°C)
48.3°F
(9.1°C)
-0.5°F
(-0.3°C)
43rd Coolest Coolest since: 1965 1904
82nd Warmest Warmest since: 1964 2012
Ties: 1908, 1924
Dec 1964–May 1966
18-Month
43.1°F
(6.2°C)
43.9°F
(6.6°C)
-0.8°F
(-0.4°C)
25th Coolest Coolest since: 1963 1918
99th Warmest Warmest since: 1965 2017
Ties: 1926, 1930, 1937, 1971
Jun 1964–May 1966
24-Month
47.7°F
(8.7°C)
48.2°F
(9.0°C)
-0.5°F
(-0.3°C)
30th Coolest Coolest since: 1963 1905
94th Warmest Warmest since: 1965 2017
Ties: 1925, 1929, 1961, 1962, 1968, 1969
Jun 1963–May 1966
36-Month
48.3°F
(9.1°C)
48.2°F
(9.0°C)
0.1°F
(0.1°C)
68th Coolest Coolest since: 1965 1905, 1918, 1979
55th Warmest Warmest since: 1958 2000
Ties: 1902, 1947, 1958, 1973, 1975, 1986, 1998
Jun 1962–May 1966
48-Month
47.9°F
(8.8°C)
48.1°F
(8.9°C)
-0.2°F
(-0.1°C)
39th Coolest Coolest since: 1965 1980
83rd Warmest Warmest since: 1964 2001, 2002, 2007
Ties: 1901, 1909, 1914, 1915, 1972, 1973
Jun 1961–May 1966
60-Month
47.8°F
(8.8°C)
48.1°F
(8.9°C)
-0.3°F
(-0.1°C)
28th Coolest Coolest since: 1964 1907, 1908
93rd Warmest Warmest since: 1965 2002
Ties: 1903, 1917, 1921, 1952, 1953, 1960, 1961, 1964, 1972, 1978, 1983

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 16, 2019 from https://www.ncdc.noaa.gov/cag/