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 3. West

Average Temperature Rankings, March 2017

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
March 2017
1-Month 		42.6°F
(5.9°C)		 39.1°F
(3.9°C)		 3.5°F
(2.0°C)		 98th Coolest
Coolest since:
 1960
31st Warmest
Warmest since:
 2012
Ties: 1936, 1992, 1995
Feb–Mar 2017
2-Month 		41.5°F
(5.3°C)		 33.6°F
(0.9°C)		 7.9°F
(4.4°C)		 125th Coolest
Coolest since:
 1899
4th Warmest
Warmest since:
 2012
Jan–Mar 2017
3-Month 		37.5°F
(3.1°C)		 30.3°F
(-0.9°C)		 7.2°F
(4.0°C)		 125th Coolest
Coolest since:
 1912
4th Warmest
Warmest since:
 2012
Dec 2016–Mar 2017
4-Month 		35.0°F
(1.7°C)		 29.9°F
(-1.2°C)		 5.1°F
(2.9°C)		 122nd Coolest
Coolest since:
 1978
6th Warmest
Warmest since:
 2012
Nov 2016–Mar 2017
5-Month 		37.7°F
(3.2°C)		 31.9°F
(-0.1°C)		 5.8°F
(3.3°C)		 125th Coolest
Coolest since:
 1912
3rd Warmest
Warmest since:
 2012
Ties: 2000, 2002
Oct 2016–Mar 2017
6-Month 		41.3°F
(5.2°C)		 35.7°F
(2.1°C)		 5.6°F
(3.1°C)		 126th Coolest
Coolest since:
 1912, 1978
2nd Warmest
Warmest since:
 2012
Sep 2016–Mar 2017
7-Month 		45.5°F
(7.5°C)		 40.0°F
(4.4°C)		 5.5°F
(3.1°C)		 127th Coolest
Coolest since:
 1978
1st Warmest
Warmest to Date
 2017
Aug 2016–Mar 2017
8-Month 		49.2°F
(9.6°C)		 44.2°F
(6.8°C)		 5.0°F
(2.8°C)		 127th Coolest
Coolest since:
 1978
1st Warmest
Warmest to Date
 2017
Jul 2016–Mar 2017
9-Month 		52.0°F
(11.1°C)		 47.8°F
(8.8°C)		 4.2°F
(2.3°C)		 126th Coolest
Coolest since:
 1978
2nd Warmest
Warmest since:
 2012
Ties: 1932
Jun 2016–Mar 2017
10-Month 		54.3°F
(12.4°C)		 50.2°F
(10.1°C)		 4.1°F
(2.3°C)		 127th Coolest
Coolest since:
 1904
1st Warmest
Warmest since:
 1932, 2012, 2017
Ties: 1932, 2012
May 2016–Mar 2017
11-Month 		55.0°F
(12.8°C)		 51.2°F
(10.7°C)		 3.8°F
(2.1°C)		 127th Coolest
Coolest since:
 1918, 1977
1st Warmest
Warmest since:
 2012, 2017
Ties: 2012
Apr 2016–Mar 2017
12-Month 		54.8°F
(12.7°C)		 51.3°F
(10.7°C)		 3.5°F
(2.0°C)		 127th Coolest
Coolest since:
 1918
1st Warmest
Warmest to Date
 2017
Oct 2015–Mar 2017
18-Month 		50.1°F
(10.1°C)		 46.1°F
(7.8°C)		 4.0°F
(2.3°C)		 126th Coolest
Coolest since:
 1979
1st Warmest
Warmest to Date
 2017
Apr 2015–Mar 2017
24-Month 		54.5°F
(12.5°C)		 51.2°F
(10.7°C)		 3.3°F
(1.8°C)		 126th Coolest
Coolest since:
 1905
1st Warmest
Warmest to Date
 2017
Apr 2014–Mar 2017
36-Month 		52.9°F
(11.6°C)		 51.2°F
(10.7°C)		 1.7°F
(0.9°C)		 121st Coolest
Coolest since:
 1979
5th Warmest
Warmest since:
 2018
Ties: 1934, 1935, 2007, 2008
Apr 2013–Mar 2017
48-Month 		51.8°F
(11.0°C)		 51.2°F
(10.7°C)		 0.6°F
(0.3°C)		 87th Coolest
Coolest since:
 1980
38th Warmest
Warmest since:
 1935
Ties: 1943, 1944, 1988, 2021
Apr 2012–Mar 2017
60-Month 		51.9°F
(11.1°C)		 51.2°F
(10.7°C)		 0.7°F
(0.4°C)		 95th Coolest
Coolest since:
 1906
29th Warmest
Warmest since:
 1935
Ties: 1924, 1932, 1937, 1989, 2012, 2016

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