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 September 2020. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1948

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1948
1-Month
67.9°F
(19.9°C)
66.2°F
(19.0°C)
1.7°F
(0.9°C)
89th Coolest Coolest since: 1947 1918
38th Warmest Warmest since: 1941 1925, 1933
Ties: 1938, 1959, 1990
Aug–Sep 1948
2-Month
70.8°F
(21.6°C)
69.8°F
(21.0°C)
1.0°F
(0.6°C)
87th Coolest Coolest since: 1946 1967
40th Warmest Warmest since: 1947 1936
Ties: 1970
Jul–Sep 1948
3-Month
72.3°F
(22.4°C)
71.8°F
(22.1°C)
0.5°F
(0.3°C)
78th Coolest Coolest since: 1946 1967
49th Warmest Warmest since: 1947 1936
Ties: 1898, 1977
Jun–Sep 1948
4-Month
72.0°F
(22.2°C)
71.6°F
(22.0°C)
0.4°F
(0.2°C)
76th Coolest Coolest since: 1946 1915, 1924
51st Warmest Warmest since: 1947 1936
Ties: 1906, 1937, 1940, 2015, 2017
May–Sep 1948
5-Month
69.6°F
(20.9°C)
69.7°F
(20.9°C)
-0.1°F
(0.0°C)
53rd Coolest Coolest since: 1947 1924
74th Warmest Warmest since: 1947 1936
Ties: 1947, 1975
Apr–Sep 1948
6-Month
67.3°F
(19.6°C)
66.7°F
(19.3°C)
0.6°F
(0.3°C)
77th Coolest Coolest since: 1947 1907
50th Warmest Warmest since: 1944 2010
Ties: 1932, 1978
Mar–Sep 1948
7-Month
63.3°F
(17.4°C)
62.9°F
(17.2°C)
0.4°F
(0.2°C)
72nd Coolest Coolest since: 1947 1924
55th Warmest Warmest since: 1946 2012
Ties: 1898, 1901, 1944, 1952, 1980
Feb–Sep 1948
8-Month
59.0°F
(15.0°C)
58.7°F
(14.8°C)
0.3°F
(0.2°C)
74th Coolest Coolest since: 1947 1904
53rd Warmest Warmest since: 1946 2012
Ties: 1908, 1981
Jan–Sep 1948
9-Month
54.7°F
(12.6°C)
54.9°F
(12.7°C)
-0.2°F
(-0.1°C)
55th Coolest Coolest since: 1947 1904, 1912
72nd Warmest Warmest since: 1946 2012
Ties: 1910, 1945, 1974, 1980
Dec 1947–Sep 1948
10-Month
52.5°F
(11.4°C)
52.5°F
(11.4°C)
0.0°F
(0.0°C)
69th Coolest Coolest since: 1947 1904
57th Warmest Warmest since: 1946 2012
Ties: 1937, 1985, 2011, 2015
Nov 1947–Sep 1948
11-Month
50.9°F
(10.5°C)
51.3°F
(10.7°C)
-0.4°F
(-0.2°C)
43rd Coolest Coolest since: 1945 1904
83rd Warmest Warmest since: 1947 2012
Ties: 1971
Oct 1947–Sep 1948
12-Month
51.9°F
(11.1°C)
51.7°F
(10.9°C)
0.2°F
(0.2°C)
67th Coolest Coolest since: 1947 1904
59th Warmest Warmest since: 1946 2012
Ties: 1974
Apr 1947–Sep 1948
18-Month
56.7°F
(13.7°C)
56.6°F
(13.7°C)
0.1°F
(0.0°C)
60th Coolest Coolest since: 1947 1904, 1918
66th Warmest Warmest since: 1945 2012
Ties: 1909, 1945, 1965, 1990, 2003
Oct 1946–Sep 1948
24-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
73rd Coolest Coolest since: 1946 1979
52nd Warmest Warmest since: 1947 2017
Ties: 1898, 1941, 1950, 1965, 1972, 1989, 2004
Oct 1945–Sep 1948
36-Month
51.9°F
(11.1°C)
51.6°F
(10.9°C)
0.3°F
(0.2°C)
74th Coolest Coolest since: 1947 1979
50th Warmest Warmest since: 1944 2018
Ties: 1915, 1985, 2016
Oct 1944–Sep 1948
48-Month
51.7°F
(10.9°C)
51.6°F
(10.9°C)
0.1°F
(0.0°C)
55th Coolest Coolest since: 1947 1905
68th Warmest Warmest since: 1947 2019
Ties: 1911, 1947, 1983, 1995
Oct 1943–Sep 1948
60-Month
51.8°F
(11.0°C)
51.6°F
(10.9°C)
0.2°F
(0.1°C)
65th Coolest Coolest since: 1947 1906
57th Warmest Warmest since: 1946 2020
Ties: 1924, 1940, 1949

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 24, 2020 from https://www.ncdc.noaa.gov/cag/