Climate at a Glance

Divisional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of August 2019. For more information, please see Climatological Rankings.


Illinois, Climate Division 6. West Southwest

Average Temperature Rankings, May 1999

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 1999
1-Month
64.6°F
(18.1°C)
63.5°F
(17.5°C)
1.1°F
(0.6°C)
77th Coolest Coolest since: 1997 1924
49th Warmest Warmest since: 1998 2018
Ties: 1930, 1933
Apr–May 1999
2-Month
60.2°F
(15.7°C)
58.3°F
(14.6°C)
1.9°F
(1.1°C)
101st Coolest Coolest since: 1997 1907
25th Warmest Warmest since: 1998 1896
Ties: 2007
Mar–May 1999
3-Month
53.4°F
(11.9°C)
52.7°F
(11.5°C)
0.7°F
(0.4°C)
76th Coolest Coolest since: 1997 1960
50th Warmest Warmest since: 1998 2012
Ties: 1939, 1948, 1972, 1992, 2018
Feb–May 1999
4-Month
49.9°F
(9.9°C)
47.4°F
(8.6°C)
2.5°F
(1.3°C)
111th Coolest Coolest since: 1997 1978
15th Warmest Warmest since: 1998 2012
Ties: 1925
Jan–May 1999
5-Month
45.2°F
(7.3°C)
43.3°F
(6.3°C)
1.9°F
(1.0°C)
99th Coolest Coolest since: 1997 1978
27th Warmest Warmest since: 1998 2012
Ties: 1925, 1974
Dec 1998–May 1999
6-Month
43.6°F
(6.4°C)
41.2°F
(5.1°C)
2.4°F
(1.3°C)
107th Coolest Coolest since: 1997 1978
18th Warmest Warmest since: 1998 2012
Ties: 1955, 1976, 2005
Nov 1998–May 1999
7-Month
44.1°F
(6.7°C)
41.4°F
(5.2°C)
2.7°F
(1.5°C)
113th Coolest Coolest since: 1997 1904
12th Warmest Warmest since: 1998 2012
Ties: 1976, 2004, 2005
Oct 1998–May 1999
8-Month
45.8°F
(7.7°C)
43.3°F
(6.3°C)
2.5°F
(1.4°C)
115th Coolest Coolest since: 1998 1978
10th Warmest Warmest since: 1998 2012
Ties: 1976, 1998
Sep 1998–May 1999
9-Month
48.7°F
(9.3°C)
45.9°F
(7.7°C)
2.8°F
(1.6°C)
117th Coolest Coolest since: 1998 1904
8th Warmest Warmest since: 1991 2012
Ties: 1991
Aug 1998–May 1999
10-Month
51.4°F
(10.8°C)
48.8°F
(9.3°C)
2.6°F
(1.5°C)
118th Coolest Coolest since: 1998 1904
7th Warmest Warmest since: 1932 2012
Ties: 1921
Jul 1998–May 1999
11-Month
53.7°F
(12.1°C)
51.4°F
(10.8°C)
2.3°F
(1.3°C)
118th Coolest Coolest since: 1998 1904
7th Warmest Warmest since: 1955 2012
Ties: 1955
Jun 1998–May 1999
12-Month
55.3°F
(12.9°C)
53.1°F
(11.7°C)
2.2°F
(1.2°C)
116th Coolest Coolest since: 1998 1904
9th Warmest Warmest since: 1955 2012
Dec 1997–May 1999
18-Month
51.9°F
(11.1°C)
49.2°F
(9.6°C)
2.7°F
(1.5°C)
121st Coolest Coolest since: 1998 1979
3rd Warmest Warmest to Date 2017
Ties: 2012
Jun 1997–May 1999
24-Month
54.9°F
(12.7°C)
53.1°F
(11.7°C)
1.8°F
(1.0°C)
112th Coolest Coolest since: 1998 1905
12th Warmest Warmest since: 1992 2017
Jun 1996–May 1999
36-Month
53.9°F
(12.2°C)
53.1°F
(11.7°C)
0.8°F
(0.5°C)
97th Coolest Coolest since: 1998 1979
26th Warmest Warmest since: 1993 2018
Ties: 1922, 1943, 1974, 1987, 1991, 1993
Jun 1995–May 1999
48-Month
53.4°F
(11.9°C)
53.1°F
(11.7°C)
0.3°F
(0.2°C)
73rd Coolest Coolest since: 1998 1980
49th Warmest Warmest since: 1994 2019
Ties: 1936, 1943, 1948, 1949, 1954, 1967, 1994, 2011
Jun 1994–May 1999
60-Month
53.5°F
(11.9°C)
53.1°F
(11.7°C)
0.4°F
(0.2°C)
73rd Coolest Coolest since: 1998 1906, 1907, 1908
48th Warmest Warmest since: 1995 1957
Ties: 1924, 1950, 1954, 1987, 1995

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published September 2019, retrieved on September 20, 2019 from https://www.ncdc.noaa.gov/cag/