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 June 2021. For more information, please see Climatological Rankings.


Illinois

Average Temperature Rankings, September 1971

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 1971
1-Month
69.2°F
(20.7°C)
66.2°F
(19.0°C)
3.0°F
(1.7°C)
104th Coolest Coolest since: 1970 1918
23rd Warmest Warmest since: 1960 1925, 1933
Ties: 1986
Aug–Sep 1971
2-Month
70.4°F
(21.3°C)
69.8°F
(21.0°C)
0.6°F
(0.3°C)
78th Coolest Coolest since: 1969 1967
49th Warmest Warmest since: 1970 1936
Ties: 1914, 1935, 1961, 1987, 2000
Jul–Sep 1971
3-Month
70.9°F
(21.6°C)
71.7°F
(22.1°C)
-0.8°F
(-0.5°C)
39th Coolest Coolest since: 1967 1967
88th Warmest Warmest since: 1970 1936
Ties: 1942, 1966
Jun–Sep 1971
4-Month
72.1°F
(22.3°C)
71.6°F
(22.0°C)
0.5°F
(0.3°C)
77th Coolest Coolest since: 1970 1915, 1924
50th Warmest Warmest since: 1959 1936
May–Sep 1971
5-Month
69.5°F
(20.8°C)
69.8°F
(21.0°C)
-0.3°F
(-0.2°C)
50th Coolest Coolest since: 1969 1924
77th Warmest Warmest since: 1970 1936
Ties: 1918, 1923
Apr–Sep 1971
6-Month
66.6°F
(19.2°C)
66.7°F
(19.3°C)
-0.1°F
(-0.1°C)
51st Coolest Coolest since: 1969 1907
76th Warmest Warmest since: 1970 2010
Ties: 1905, 1916, 1943, 1973, 1981, 2020
Mar–Sep 1971
7-Month
62.4°F
(16.9°C)
62.9°F
(17.2°C)
-0.5°F
(-0.3°C)
41st Coolest Coolest since: 1969 1924
86th Warmest Warmest since: 1970 2012
Ties: 1916, 1932, 1962, 1972
Feb–Sep 1971
8-Month
58.2°F
(14.6°C)
58.7°F
(14.8°C)
-0.5°F
(-0.2°C)
48th Coolest Coolest since: 1969 1904
79th Warmest Warmest since: 1970 2012
Ties: 1961, 1980, 1994
Jan–Sep 1971
9-Month
54.1°F
(12.3°C)
54.9°F
(12.7°C)
-0.8°F
(-0.4°C)
32nd Coolest Coolest since: 1969 1904, 1912
95th Warmest Warmest since: 1970 2012
Ties: 1928, 1984
Dec 1970–Sep 1971
10-Month
52.0°F
(11.1°C)
52.5°F
(11.4°C)
-0.5°F
(-0.3°C)
46th Coolest Coolest since: 1970 1904
80th Warmest Warmest since: 1968 2012
Ties: 1947, 1974, 2003
Nov 1970–Sep 1971
11-Month
50.9°F
(10.5°C)
51.4°F
(10.8°C)
-0.5°F
(-0.3°C)
43rd Coolest Coolest since: 1970 1904
83rd Warmest Warmest since: 1966 2012
Ties: 1948
Oct 1970–Sep 1971
12-Month
51.2°F
(10.7°C)
51.6°F
(10.9°C)
-0.4°F
(-0.2°C)
43rd Coolest Coolest since: 1970 1904
83rd Warmest Warmest since: 1966 2012
Apr 1970–Sep 1971
18-Month
56.6°F
(13.7°C)
56.6°F
(13.7°C)
0.0°F
(0.0°C)
53rd Coolest Coolest since: 1970 1904, 1918
73rd Warmest Warmest since: 1966 2012
Ties: 1925, 1930, 1943, 1966, 1973, 1985
Oct 1969–Sep 1971
24-Month
50.8°F
(10.4°C)
51.6°F
(10.9°C)
-0.8°F
(-0.5°C)
22nd Coolest Coolest since: 1970 1979
103rd Warmest Warmest since: 1969 2017
Ties: 1899, 1902
Oct 1968–Sep 1971
36-Month
50.8°F
(10.4°C)
51.6°F
(10.9°C)
-0.8°F
(-0.5°C)
14th Coolest Coolest since: 1970 1979
110th Warmest Warmest since: 1970 2018
Ties: 1920, 1960, 1963, 1970, 1981, 2015
Oct 1967–Sep 1971
48-Month
50.9°F
(10.5°C)
51.6°F
(10.9°C)
-0.7°F
(-0.4°C)
15th Coolest Coolest since: 1970 1905
108th Warmest Warmest since: 1969 2019
Ties: 1912, 1919, 1927, 1961, 1978
Oct 1966–Sep 1971
60-Month
50.9°F
(10.5°C)
51.6°F
(10.9°C)
-0.7°F
(-0.4°C)
13th Coolest Coolest since: 1970 1906
109th Warmest Warmest since: 1970 2020
Ties: 1903, 1962, 1963, 1970

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published July 2021, retrieved on July 27, 2021 from https://www.ncdc.noaa.gov/cag/