Statewide Rankings

Statewide 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

Average Temperature Rankings, September 2002

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 2002
1-Month
69.3°F
(20.7°C)
66.2°F
(19.0°C)
3.1°F
(1.7°C)
106th Coolest
Coolest since:
1918
23rd Warmest
Warmest since:
1925, 1933
Aug–Sep 2002
2-Month
72.2°F
(22.3°C)
69.9°F
(21.1°C)
2.3°F
(1.2°C)
110th Coolest
Coolest since:
1967
19th Warmest
Warmest since:
1936
Ties: 1938, 1941, 1960, 2019
Jul–Sep 2002
3-Month
74.2°F
(23.4°C)
71.8°F
(22.1°C)
2.4°F
(1.3°C)
121st Coolest
Coolest since:
1967
8th Warmest
Warmest since:
1936
Ties: 1954, 2005
Jun–Sep 2002
4-Month
74.1°F
(23.4°C)
71.6°F
(22.0°C)
2.5°F
(1.4°C)
118th Coolest
Coolest since:
1915, 1924
11th Warmest
Warmest since:
1936
Ties: 2010
May–Sep 2002
5-Month
71.1°F
(21.7°C)
69.7°F
(20.9°C)
1.4°F
(0.8°C)
96th Coolest
Coolest since:
1924
33rd Warmest
Warmest since:
1936
Apr–Sep 2002
6-Month
68.2°F
(20.1°C)
66.7°F
(19.3°C)
1.5°F
(0.8°C)
105th Coolest
Coolest since:
1907
24th Warmest
Warmest since:
2010
Ties: 1911, 1931, 1986
Mar–Sep 2002
7-Month
63.8°F
(17.7°C)
62.8°F
(17.1°C)
1.0°F
(0.6°C)
93rd Coolest
Coolest since:
1924
36th Warmest
Warmest since:
2012
Ties: 1973, 1985
Feb–Sep 2002
8-Month
60.2°F
(15.7°C)
58.7°F
(14.8°C)
1.5°F
(0.9°C)
111th Coolest
Coolest since:
1904
18th Warmest
Warmest since:
2012
Ties: 1931, 1953, 1986, 1999, 2007, 2018
Jan–Sep 2002
9-Month
57.2°F
(14.0°C)
54.9°F
(12.7°C)
2.3°F
(1.3°C)
116th Coolest
Coolest since:
1904, 1912
13th Warmest
Warmest since:
2012
Dec 2001–Sep 2002
10-Month
55.1°F
(12.8°C)
52.4°F
(11.3°C)
2.7°F
(1.5°C)
121st Coolest
Coolest since:
1904
7th Warmest
Warmest since:
2012
Nov 2001–Sep 2002
11-Month
54.6°F
(12.6°C)
51.3°F
(10.7°C)
3.3°F
(1.9°C)
124th Coolest
Coolest since:
1904
4th Warmest
Warmest since:
2012
Oct 2001–Sep 2002
12-Month
54.5°F
(12.5°C)
51.6°F
(10.9°C)
2.9°F
(1.6°C)
123rd Coolest
Coolest since:
1904
5th Warmest
Warmest since:
2012
Apr 2001–Sep 2002
18-Month
59.0°F
(15.0°C)
56.7°F
(13.7°C)
2.3°F
(1.3°C)
124th Coolest
Coolest since:
1904, 1918
4th Warmest
Warmest since:
2012
Ties: 1932
Oct 2000–Sep 2002
24-Month
52.9°F
(11.6°C)
51.6°F
(10.9°C)
1.3°F
(0.7°C)
105th Coolest
Coolest since:
1979
22nd Warmest
Warmest since:
2017
Ties: 1934, 1942, 2021
Oct 1999–Sep 2002
36-Month
53.3°F
(11.8°C)
51.6°F
(10.9°C)
1.7°F
(0.9°C)
115th Coolest
Coolest since:
1979
11th Warmest
Warmest since:
2018
Ties: 2019
Oct 1998–Sep 2002
48-Month
53.4°F
(11.9°C)
51.6°F
(10.9°C)
1.8°F
(1.0°C)
121st Coolest
Coolest since:
1905
4th Warmest
Warmest to Date
2019
Ties: 2013
Oct 1997–Sep 2002
60-Month
53.5°F
(11.9°C)
51.5°F
(10.8°C)
2.0°F
(1.1°C)
122nd Coolest
Coolest since:
1906
2nd Warmest
Warmest to Date
2020

Citing This Page