Climate at a Glance

Statewide 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 December 2019. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, October 1949

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
October 1949
1-Month
57.3°F
(14.1°C)
54.6°F
(12.6°C)
2.7°F
(1.5°C)
102nd Coolest Coolest since: 1948 1925
24th Warmest Warmest since: 1947 1963
Ties: 1962
Sep–Oct 1949
2-Month
58.8°F
(14.9°C)
60.4°F
(15.8°C)
-1.6°F
(-0.9°C)
25th Coolest Coolest since: 1943 1917
101st Warmest Warmest since: 1948 1897, 2016
Aug–Oct 1949
3-Month
63.8°F
(17.7°C)
64.8°F
(18.2°C)
-1.0°F
(-0.5°C)
31st Coolest Coolest since: 1945 1917
95th Warmest Warmest since: 1948 1947
Ties: 1942, 1945, 1965, 1999
Jul–Oct 1949
4-Month
67.3°F
(19.6°C)
67.5°F
(19.7°C)
-0.2°F
(-0.1°C)
60th Coolest Coolest since: 1948 1917
66th Warmest Warmest since: 1947 1936
Ties: 1912, 1927, 1937, 1946
Jun–Oct 1949
5-Month
68.6°F
(20.3°C)
68.2°F
(20.1°C)
0.4°F
(0.2°C)
76th Coolest Coolest since: 1948 1917
50th Warmest Warmest since: 1947 1936
Ties: 1943
May–Oct 1949
6-Month
67.9°F
(19.9°C)
67.2°F
(19.6°C)
0.7°F
(0.3°C)
78th Coolest Coolest since: 1948 1917
48th Warmest Warmest since: 1947 1936
Ties: 2000, 2002
Apr–Oct 1949
7-Month
65.4°F
(18.6°C)
64.9°F
(18.3°C)
0.5°F
(0.3°C)
70th Coolest Coolest since: 1948 1917
56th Warmest Warmest since: 1947 2010
Ties: 1985, 2006
Mar–Oct 1949
8-Month
62.2°F
(16.8°C)
61.8°F
(16.6°C)
0.4°F
(0.2°C)
74th Coolest Coolest since: 1948 1917
52nd Warmest Warmest since: 1946 2012
Ties: 1897, 1944, 1964, 1971, 2001
Feb–Oct 1949
9-Month
58.7°F
(14.8°C)
58.2°F
(14.6°C)
0.5°F
(0.2°C)
81st Coolest Coolest since: 1948 1917
45th Warmest Warmest since: 1946 2012
Ties: 1927, 1988, 2019
Jan–Oct 1949
10-Month
55.7°F
(13.2°C)
54.9°F
(12.7°C)
0.8°F
(0.5°C)
89th Coolest Coolest since: 1948 1904
37th Warmest Warmest since: 1946 2012
Ties: 1925, 1952, 1956, 1964
Dec 1948–Oct 1949
11-Month
53.6°F
(12.0°C)
52.6°F
(11.4°C)
1.0°F
(0.6°C)
94th Coolest Coolest since: 1948 1904
31st Warmest Warmest since: 1946 2012
Ties: 1911, 1946, 2018
Nov 1948–Oct 1949
12-Month
52.7°F
(11.5°C)
51.6°F
(10.9°C)
1.1°F
(0.6°C)
94th Coolest Coolest since: 1948 1904
31st Warmest Warmest since: 1941 2012
May 1948–Oct 1949
18-Month
57.4°F
(14.1°C)
56.9°F
(13.8°C)
0.5°F
(0.3°C)
83rd Coolest Coolest since: 1948 1904
42nd Warmest Warmest since: 1942 2012
Ties: 1956, 1957
Nov 1947–Oct 1949
24-Month
51.9°F
(11.1°C)
51.7°F
(10.9°C)
0.2°F
(0.2°C)
77th Coolest Coolest since: 1948 1905
47th Warmest Warmest since: 1947 2017
Ties: 1897, 1901, 1940, 1943, 2004
Nov 1946–Oct 1949
36-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
76th Coolest Coolest since: 1948 1904, 1979
47th Warmest Warmest since: 1948 2018
Ties: 1915, 1938, 1946, 1947, 1948, 1973, 2010
Nov 1945–Oct 1949
48-Month
52.1°F
(11.2°C)
51.6°F
(10.9°C)
0.5°F
(0.3°C)
82nd Coolest Coolest since: 1948 1905
40th Warmest Warmest since: 1944 2019
Ties: 1921, 1940, 1954, 1999, 2016
Nov 1944–Oct 1949
60-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
69th Coolest Coolest since: 1948 1905, 1906
52nd Warmest Warmest since: 1946 2002
Ties: 1924, 1940, 1944, 1946

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 26, 2020 from https://www.ncdc.noaa.gov/cag/