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 8. Southwest

Average Temperature Rankings, August 1904

View Period (Months):
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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
August 1904
1-Month
72.6°F
(22.6°C)
76.0°F
(24.4°C)
-3.4°F
(-1.8°C)
8th Coolest
Coolest since:
1915
121st Warmest
Warmest since:
1936
Ties: 1976, 1986
Jul–Aug 1904
2-Month
73.5°F
(23.1°C)
77.0°F
(25.0°C)
-3.5°F
(-1.9°C)
5th Coolest
Coolest since:
1967
124th Warmest
Warmest since:
1936
Jun–Aug 1904
3-Month
72.7°F
(22.6°C)
75.9°F
(24.4°C)
-3.2°F
(-1.8°C)
4th Coolest
Coolest since:
1915, 1927
125th Warmest
Warmest since:
1936
Ties: 1950
May–Aug 1904
4-Month
70.5°F
(21.4°C)
73.2°F
(22.9°C)
-2.7°F
(-1.5°C)
7th Coolest
Coolest since:
1967
122nd Warmest
Warmest since:
1936
Ties: 1976
Apr–Aug 1904
5-Month
66.2°F
(19.0°C)
69.6°F
(20.9°C)
-3.4°F
(-1.9°C)
2nd Coolest
Coolest since:
1907
127th Warmest
Warmest since:
2010
Mar–Aug 1904
6-Month
62.6°F
(17.0°C)
65.4°F
(18.6°C)
-2.8°F
(-1.6°C)
1st Coolest
Coolest since:
1904
128th Warmest
Warmest since:
2012
Feb–Aug 1904
7-Month
58.0°F
(14.4°C)
61.1°F
(16.2°C)
-3.1°F
(-1.8°C)
1st Coolest
Coolest since:
1904
128th Warmest
Warmest since:
2012
Jan–Aug 1904
8-Month
54.1°F
(12.3°C)
57.4°F
(14.1°C)
-3.3°F
(-1.8°C)
4th Coolest
Coolest since:
1912
125th Warmest
Warmest since:
2012
Dec 1903–Aug 1904
9-Month
51.3°F
(10.7°C)
54.8°F
(12.7°C)
-3.5°F
(-2.0°C)
1st Coolest
Coolest since:
1904
127th Warmest
Warmest since:
2012
Nov 1903–Aug 1904
10-Month
50.2°F
(10.1°C)
53.8°F
(12.1°C)
-3.6°F
(-2.0°C)
1st Coolest
Coolest since:
1904
127th Warmest
Warmest since:
2012
Oct 1903–Aug 1904
11-Month
50.9°F
(10.5°C)
54.2°F
(12.3°C)
-3.3°F
(-1.8°C)
1st Coolest
Coolest since:
1904
127th Warmest
Warmest since:
2012
Sep 1903–Aug 1904
12-Month
52.3°F
(11.3°C)
55.4°F
(13.0°C)
-3.1°F
(-1.7°C)
1st Coolest
Coolest since:
1904
127th Warmest
Warmest since:
2012
Mar 1903–Aug 1904
18-Month
56.6°F
(13.7°C)
58.7°F
(14.8°C)
-2.1°F
(-1.1°C)
1st Coolest
Coolest since:
1904
127th Warmest
Warmest since:
2012
Sep 1902–Aug 1904
24-Month
53.7°F
(12.1°C)
55.4°F
(13.0°C)
-1.7°F
(-0.9°C)
4th Coolest
Coolest since:
1979
123rd Warmest
Warmest since:
2017
Ties: 1918
Sep 1901–Aug 1904
36-Month
53.8°F
(12.1°C)
55.4°F
(13.0°C)
-1.6°F
(-0.9°C)
4th Coolest
Coolest since:
1979
122nd Warmest
Warmest since:
2018
Ties: 1905
Sep 1900–Aug 1904
48-Month
54.4°F
(12.4°C)
55.3°F
(12.9°C)
-0.9°F
(-0.5°C)
11th Coolest
Coolest since:
1980
114th Warmest
Warmest since:
2019
Ties: 1920, 1961, 1963, 1982
Sep 1899–Aug 1904
60-Month
54.6°F
(12.6°C)
55.3°F
(12.9°C)
-0.7°F
(-0.3°C)
11th Coolest
Coolest since:
1906
113th Warmest
Warmest since:
2020
Ties: 1962

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