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 2020. For more information, please see Climatological Rankings.


Illinois, Climate Division 3. West

Average Temperature Rankings, September 1998

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
September 1998
1-Month
70.7°F
(21.5°C)
66.1°F
(18.9°C)
4.6°F
(2.6°C)
119th Coolest Coolest since: 1997 1918
7th Warmest Warmest since: 1933 1931, 1933
Ties: 2016
Aug–Sep 1998
2-Month
72.9°F
(22.7°C)
69.8°F
(21.0°C)
3.1°F
(1.7°C)
118th Coolest Coolest since: 1997 1967
8th Warmest Warmest since: 1988 1936
Jul–Sep 1998
3-Month
73.9°F
(23.3°C)
71.9°F
(22.2°C)
2.0°F
(1.1°C)
107th Coolest Coolest since: 1997 1967
19th Warmest Warmest since: 1988 1936
Jun–Sep 1998
4-Month
73.1°F
(22.8°C)
71.8°F
(22.1°C)
1.3°F
(0.7°C)
95th Coolest Coolest since: 1997 1992
31st Warmest Warmest since: 1988 1936
Ties: 1938, 1947
May–Sep 1998
5-Month
71.9°F
(22.2°C)
69.9°F
(21.1°C)
2.0°F
(1.1°C)
113th Coolest Coolest since: 1997 1924, 1967
13th Warmest Warmest since: 1988 1936
Ties: 1930
Apr–Sep 1998
6-Month
68.6°F
(20.3°C)
66.8°F
(19.3°C)
1.8°F
(1.0°C)
108th Coolest Coolest since: 1997 1907
18th Warmest Warmest since: 1991 1936
Ties: 1911
Mar–Sep 1998
7-Month
64.4°F
(18.0°C)
62.8°F
(17.1°C)
1.6°F
(0.9°C)
105th Coolest Coolest since: 1997 1924
21st Warmest Warmest since: 1991 1936
Ties: 1914
Feb–Sep 1998
8-Month
61.3°F
(16.3°C)
58.5°F
(14.7°C)
2.8°F
(1.6°C)
120th Coolest Coolest since: 1997 1904
6th Warmest Warmest since: 1991 2012
Ties: 1938
Jan–Sep 1998
9-Month
57.7°F
(14.3°C)
54.6°F
(12.6°C)
3.1°F
(1.7°C)
122nd Coolest Coolest since: 1997 1904
4th Warmest Warmest since: 1987 2012
Dec 1997–Sep 1998
10-Month
55.0°F
(12.8°C)
52.0°F
(11.1°C)
3.0°F
(1.7°C)
120th Coolest Coolest since: 1997 1904
5th Warmest Warmest since: 1987 2012
Nov 1997–Sep 1998
11-Month
53.5°F
(11.9°C)
50.9°F
(10.5°C)
2.6°F
(1.4°C)
115th Coolest Coolest since: 1997 1904
10th Warmest Warmest since: 1987 2012
Oct 1997–Sep 1998
12-Month
53.6°F
(12.0°C)
51.2°F
(10.7°C)
2.4°F
(1.3°C)
114th Coolest Coolest since: 1997 1904
11th Warmest Warmest since: 1987 2012
Apr 1997–Sep 1998
18-Month
57.4°F
(14.1°C)
56.5°F
(13.6°C)
0.9°F
(0.5°C)
96th Coolest Coolest since: 1997 1904
29th Warmest Warmest since: 1991 2012
Ties: 1901, 1938, 1964, 2011, 2018
Oct 1996–Sep 1998
24-Month
51.7°F
(10.9°C)
51.2°F
(10.7°C)
0.5°F
(0.2°C)
88th Coolest Coolest since: 1997 1979
36th Warmest Warmest since: 1992 2017
Ties: 1938, 1943, 1949, 1976, 2011
Oct 1995–Sep 1998
36-Month
50.9°F
(10.5°C)
51.2°F
(10.7°C)
-0.3°F
(-0.2°C)
41st Coolest Coolest since: 1997 1979
82nd Warmest Warmest since: 1993 2018
Ties: 1945, 1986
Oct 1994–Sep 1998
48-Month
51.2°F
(10.7°C)
51.2°F
(10.7°C)
0.0°F
(0.0°C)
55th Coolest Coolest since: 1997 1905
67th Warmest Warmest since: 1994 1934
Ties: 1959, 1974, 1975, 1994, 2016
Oct 1993–Sep 1998
60-Month
51.0°F
(10.6°C)
51.2°F
(10.7°C)
-0.2°F
(-0.1°C)
39th Coolest Coolest since: 1997 1906, 1982
82nd Warmest Warmest since: 1995 1934
Ties: 1900, 1901, 1910, 1913, 1916, 1926, 1951, 1952, 1966, 1985, 1986

Citing This Page

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