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, July 2019

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  • Record Warmest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
July 2019
1-Month 		77.4°F
(25.2°C)		 75.6°F
(24.2°C)		 1.8°F
(1.0°C)		 103rd Coolest
Coolest since:
 2009, 2014
26th Warmest
Warmest since:
 1936
Jun–Jul 2019
2-Month 		74.2°F
(23.4°C)		 73.5°F
(23.1°C)		 0.7°F
(0.3°C)		 86th Coolest
Coolest since:
 1915
43rd Warmest
Warmest since:
 1934
Ties: 1939, 1940, 1957, 2006
May–Jul 2019
3-Month 		70.3°F
(21.3°C)		 69.7°F
(20.9°C)		 0.6°F
(0.4°C)		 81st Coolest
Coolest since:
 1924
48th Warmest
Warmest since:
 1934
Ties: 1918, 2006, 2015
Apr–Jul 2019
4-Month 		65.8°F
(18.8°C)		 65.1°F
(18.4°C)		 0.7°F
(0.4°C)		 80th Coolest
Coolest since:
 1907
49th Warmest
Warmest since:
 1934
Ties: 1895, 1919, 1963, 1981
Mar–Jul 2019
5-Month 		60.1°F
(15.6°C)		 60.1°F
(15.6°C)		 0.0°F
(0.0°C)		 52nd Coolest
Coolest since:
 1960
77th Warmest
Warmest since:
 2012
Ties: 1895, 1945, 1956, 1962, 1970, 1990
Feb–Jul 2019
6-Month 		55.0°F
(12.8°C)		 55.0°F
(12.8°C)		 0.0°F
(0.0°C)		 66th Coolest
Coolest since:
 1947
63rd Warmest
Warmest since:
 2012
Ties: 1948, 1962
Jan–Jul 2019
7-Month 		50.8°F
(10.4°C)		 50.7°F
(10.4°C)		 0.1°F
(0.0°C)		 67th Coolest
Coolest since:
 1912
62nd Warmest
Warmest since:
 2012
Ties: 1913, 1959
Dec 2018–Jul 2019
8-Month 		48.7°F
(9.3°C)		 48.0°F
(8.9°C)		 0.7°F
(0.4°C)		 76th Coolest
Coolest since:
 1904
52nd Warmest
Warmest since:
 2012
Ties: 1908
Nov 2018–Jul 2019
9-Month 		47.3°F
(8.5°C)		 47.3°F
(8.5°C)		 0.0°F
(0.0°C)		 60th Coolest
Coolest since:
 1904
68th Warmest
Warmest since:
 2012
Ties: 1898, 1950, 1972, 1975
Oct 2018–Jul 2019
10-Month 		48.0°F
(8.9°C)		 48.0°F
(8.9°C)		 0.0°F
(0.0°C)		 58th Coolest
Coolest since:
 1904
70th Warmest
Warmest since:
 2012
Ties: 1908, 1973, 1975
Sep 2018–Jul 2019
11-Month 		50.0°F
(10.0°C)		 49.7°F
(9.8°C)		 0.3°F
(0.2°C)		 72nd Coolest
Coolest since:
 1904
56th Warmest
Warmest since:
 2012
Ties: 1923, 1935, 1952, 1990
Aug 2018–Jul 2019
12-Month 		52.0°F
(11.1°C)		 51.6°F
(10.9°C)		 0.4°F
(0.2°C)		 72nd Coolest
Coolest since:
 1904
56th Warmest
Warmest since:
 2012
Ties: 1923, 1935, 1937
Feb 2018–Jul 2019
18-Month 		53.4°F
(11.9°C)		 52.7°F
(11.5°C)		 0.7°F
(0.4°C)		 87th Coolest
Coolest since:
 1918
41st Warmest
Warmest since:
 2012
Ties: 1995, 2001, 2004
Aug 2017–Jul 2019
24-Month 		52.3°F
(11.3°C)		 51.7°F
(10.9°C)		 0.6°F
(0.4°C)		 90th Coolest
Coolest since:
 1905
37th Warmest
Warmest since:
 2017
Ties: 1943
Aug 2016–Jul 2019
36-Month 		53.4°F
(11.9°C)		 51.6°F
(10.9°C)		 1.8°F
(1.0°C)		 117th Coolest
Coolest since:
 1979
9th Warmest
Warmest since:
 2018
Ties: 1933
Aug 2015–Jul 2019
48-Month 		53.8°F
(12.1°C)		 51.6°F
(10.9°C)		 2.2°F
(1.2°C)		 124th Coolest
Coolest since:
 1905, 1980
1st Warmest
Warmest to Date
 2019
Aug 2014–Jul 2019
60-Month 		53.2°F
(11.8°C)		 51.6°F
(10.9°C)		 1.6°F
(0.9°C)		 121st Coolest
Coolest since:
 1906
3rd Warmest
Warmest since:
 2020
Ties: 1935, 2006, 2008, 2021

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