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


Illinois, Climate Division 2. Northeast

Average Temperature Rankings, September 1940

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1940
1-Month
62.6°F
(17.0°C)
63.7°F
(17.6°C)
-1.1°F
(-0.6°C)
38th Coolest Coolest since: 1934 1918
89th Warmest Warmest since: 1939 1897
Ties: 1984
Aug–Sep 1940
2-Month
67.1°F
(19.5°C)
67.4°F
(19.7°C)
-0.3°F
(-0.2°C)
51st Coolest Coolest since: 1934 1902
76th Warmest Warmest since: 1939 1947
Ties: 1956
Jul–Sep 1940
3-Month
69.4°F
(20.8°C)
69.3°F
(20.7°C)
0.1°F
(0.1°C)
57th Coolest Coolest since: 1932 1924
70th Warmest Warmest since: 1939 1936
Ties: 1932, 1977
Jun–Sep 1940
4-Month
69.4°F
(20.8°C)
69.2°F
(20.7°C)
0.2°F
(0.1°C)
60th Coolest Coolest since: 1938 1915
67th Warmest Warmest since: 1939 2005
Ties: 1908, 1916, 1938, 1961, 2006
May–Sep 1940
5-Month
66.5°F
(19.2°C)
67.1°F
(19.5°C)
-0.6°F
(-0.3°C)
33rd Coolest Coolest since: 1935 1924
94th Warmest Warmest since: 1939 1921, 1988
Ties: 1972, 2004
Apr–Sep 1940
6-Month
63.0°F
(17.2°C)
63.9°F
(17.7°C)
-0.9°F
(-0.5°C)
29th Coolest Coolest since: 1935 1907
98th Warmest Warmest since: 1939 1921
Ties: 1958, 1989
Mar–Sep 1940
7-Month
58.4°F
(14.7°C)
59.9°F
(15.5°C)
-1.5°F
(-0.8°C)
16th Coolest Coolest since: 1928 1924
111th Warmest Warmest since: 1939 2012
Feb–Sep 1940
8-Month
54.4°F
(12.4°C)
55.5°F
(13.1°C)
-1.1°F
(-0.7°C)
26th Coolest Coolest since: 1929 1904, 1917
101st Warmest Warmest since: 1939 2012
Ties: 1928
Jan–Sep 1940
9-Month
49.7°F
(9.8°C)
51.7°F
(10.9°C)
-2.0°F
(-1.1°C)
8th Coolest Coolest since: 1924 1904, 1912
119th Warmest Warmest since: 1939 2012
Dec 1939–Sep 1940
10-Month
48.0°F
(8.9°C)
49.1°F
(9.5°C)
-1.1°F
(-0.6°C)
23rd Coolest Coolest since: 1936 1904
103rd Warmest Warmest since: 1939 2012
Ties: 1899, 1936, 1943, 1950, 1965, 2009
Nov 1939–Sep 1940
11-Month
47.1°F
(8.4°C)
48.2°F
(9.0°C)
-1.1°F
(-0.6°C)
24th Coolest Coolest since: 1936 1904
102nd Warmest Warmest since: 1939 2012
Ties: 1943, 1950, 1960, 2009
Oct 1939–Sep 1940
12-Month
47.6°F
(8.7°C)
48.5°F
(9.2°C)
-0.9°F
(-0.5°C)
30th Coolest Coolest since: 1936 1904
96th Warmest Warmest since: 1939 2012
Ties: 1927, 1965, 1970
Apr 1939–Sep 1940
18-Month
53.4°F
(11.9°C)
53.6°F
(12.0°C)
-0.2°F
(-0.1°C)
47th Coolest Coolest since: 1936 1904
79th Warmest Warmest since: 1939 2012
Ties: 1948, 1959, 1965, 1969
Oct 1938–Sep 1940
24-Month
48.9°F
(9.4°C)
48.5°F
(9.2°C)
0.4°F
(0.2°C)
80th Coolest Coolest since: 1938 1918
45th Warmest Warmest since: 1939 2017
Ties: 1898, 1923, 1973, 2004
Oct 1937–Sep 1940
36-Month
48.9°F
(9.4°C)
48.4°F
(9.1°C)
0.5°F
(0.3°C)
82nd Coolest Coolest since: 1938 1979
42nd Warmest Warmest since: 1939 2000
Ties: 1942, 1943, 2009
Oct 1936–Sep 1940
48-Month
48.7°F
(9.3°C)
48.4°F
(9.1°C)
0.3°F
(0.2°C)
74th Coolest Coolest since: 1939 1905, 1918
49th Warmest Warmest since: 1939 2001, 2002, 2019
Ties: 1936, 1939, 1949, 1954, 1958, 1974, 1975, 1983
Oct 1935–Sep 1940
60-Month
48.5°F
(9.2°C)
48.5°F
(9.2°C)
0.0°F
(0.0°C)
53rd Coolest Coolest since: 1938 1905, 1906
69th Warmest Warmest since: 1939 2002
Ties: 1900, 1901, 1938, 1948, 1949, 1950, 1974, 1984

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published June 2021, retrieved on June 19, 2021 from https://www.ncdc.noaa.gov/cag/