Divisional Rankings

Divisional Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois, Climate Division 7. East Southeast

Average Temperature Rankings, September 1998

View Period (Months):
Download: csv json xml
  • Record Coolest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
September 1998
1-Month 		71.9°F
(22.2°C)		 67.4°F
(19.7°C)		 4.5°F
(2.5°C)		 122nd Coolest
Coolest since:
 1918
7th Warmest
Warmest since:
 1925
Ties: 1960, 2018
Aug–Sep 1998
2-Month 		73.6°F
(23.1°C)		 70.8°F
(21.6°C)		 2.8°F
(1.5°C)		 116th Coolest
Coolest since:
 1967
13th Warmest
Warmest since:
 1936
Ties: 1980
Jul–Sep 1998
3-Month 		74.4°F
(23.6°C)		 72.6°F
(22.6°C)		 1.8°F
(1.0°C)		 107th Coolest
Coolest since:
 1967
22nd Warmest
Warmest since:
 1936
Ties: 1941, 2012
Jun–Sep 1998
4-Month 		74.1°F
(23.4°C)		 72.6°F
(22.6°C)		 1.5°F
(0.8°C)		 104th Coolest
Coolest since:
 1967
25th Warmest
Warmest since:
 1936
Ties: 1911, 1991
May–Sep 1998
5-Month 		72.9°F
(22.7°C)		 70.7°F
(21.5°C)		 2.2°F
(1.2°C)		 114th Coolest
Coolest since:
 1924
15th Warmest
Warmest since:
 1936
Ties: 1911, 1988
Apr–Sep 1998
6-Month 		69.7°F
(20.9°C)		 67.7°F
(19.8°C)		 2.0°F
(1.1°C)		 113th Coolest
Coolest since:
 1907
16th Warmest
Warmest since:
 2010
Ties: 1988
Mar–Sep 1998
7-Month 		65.8°F
(18.8°C)		 64.0°F
(17.8°C)		 1.8°F
(1.0°C)		 115th Coolest
Coolest since:
 1924
14th Warmest
Warmest since:
 2012
Ties: 1955, 1988
Feb–Sep 1998
8-Month 		62.7°F
(17.1°C)		 59.9°F
(15.5°C)		 2.8°F
(1.6°C)		 124th Coolest
Coolest since:
 1904, 1924
5th Warmest
Warmest since:
 2012
Jan–Sep 1998
9-Month 		59.6°F
(15.3°C)		 56.4°F
(13.6°C)		 3.2°F
(1.7°C)		 126th Coolest
Coolest since:
 1979
3rd Warmest
Warmest since:
 2012
Dec 1997–Sep 1998
10-Month 		57.0°F
(13.9°C)		 53.9°F
(12.2°C)		 3.1°F
(1.7°C)		 124th Coolest
Coolest since:
 1904
4th Warmest
Warmest since:
 2012
Nov 1997–Sep 1998
11-Month 		55.4°F
(13.0°C)		 52.8°F
(11.6°C)		 2.6°F
(1.4°C)		 119th Coolest
Coolest since:
 1904
9th Warmest
Warmest since:
 2012
Oct 1997–Sep 1998
12-Month 		55.4°F
(13.0°C)		 53.0°F
(11.7°C)		 2.4°F
(1.3°C)		 119th Coolest
Coolest since:
 1904
9th Warmest
Warmest since:
 2012
Ties: 2005
Apr 1997–Sep 1998
18-Month 		58.8°F
(14.9°C)		 57.9°F
(14.4°C)		 0.9°F
(0.5°C)		 93rd Coolest
Coolest since:
 1918
35th Warmest
Warmest since:
 2012
Ties: 1919, 1949, 1986
Oct 1996–Sep 1998
24-Month 		53.8°F
(12.1°C)		 53.1°F
(11.7°C)		 0.7°F
(0.4°C)		 93rd Coolest
Coolest since:
 1979
34th Warmest
Warmest since:
 2017
Ties: 1931, 1943, 1986, 2001, 2020
Oct 1995–Sep 1998
36-Month 		53.0°F
(11.7°C)		 53.0°F
(11.7°C)		 0.0°F
(0.0°C)		 53rd Coolest
Coolest since:
 1979
73rd Warmest
Warmest since:
 2018
Ties: 1898, 1911, 1925, 1959, 1986
Oct 1994–Sep 1998
48-Month 		53.5°F
(11.9°C)		 53.0°F
(11.7°C)		 0.5°F
(0.2°C)		 81st Coolest
Coolest since:
 1980
44th Warmest
Warmest since:
 2019
Ties: 1949, 1987, 1994, 1999, 2015
Oct 1993–Sep 1998
60-Month 		53.2°F
(11.8°C)		 53.0°F
(11.7°C)		 0.2°F
(0.1°C)		 58th Coolest
Coolest since:
 1982
66th Warmest
Warmest since:
 2020
Ties: 1940, 1947, 1948, 1959, 1975

Citing This Page