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 May 2022. For more information, please see Climatological Rankings.


Illinois, Climate Division 3. West

Average Temperature Rankings, December 1999

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Warmest/Coolest
Since
Record
December 1999
1-Month
31.3°F
(-0.4°C)
28.3°F
(-2.1°C)
3.0°F
(1.7°C)
81st Coolest Coolest since: 1997 1983
47th Warmest Warmest since: 1998 2015
Ties: 1948
Nov–Dec 1999
2-Month
39.6°F
(4.2°C)
34.2°F
(1.2°C)
5.4°F
(3.0°C)
121st Coolest Coolest since: 1998 2000
7th Warmest Warmest since: 1998 1931
Ties: 1994, 1998
Oct–Dec 1999
3-Month
44.6°F
(7.0°C)
41.0°F
(5.0°C)
3.6°F
(2.0°C)
115th Coolest Coolest since: 1997 1976
13th Warmest Warmest since: 1998 1931
Ties: 2011
Sep–Dec 1999
4-Month
49.4°F
(9.7°C)
47.2°F
(8.4°C)
2.2°F
(1.3°C)
111th Coolest Coolest since: 1997 1976
17th Warmest Warmest since: 1998 1931
Ties: 1922, 1947
Aug–Dec 1999
5-Month
53.9°F
(12.2°C)
52.6°F
(11.4°C)
1.3°F
(0.8°C)
102nd Coolest Coolest since: 1997 1976
26th Warmest Warmest since: 1998 1931
Ties: 1946, 1975, 2005
Jul–Dec 1999
6-Month
58.0°F
(14.4°C)
56.5°F
(13.6°C)
1.5°F
(0.8°C)
108th Coolest Coolest since: 1997 1976
20th Warmest Warmest since: 1998 1931
Ties: 1930, 1971
Jun–Dec 1999
7-Month
60.0°F
(15.6°C)
58.6°F
(14.8°C)
1.4°F
(0.8°C)
104th Coolest Coolest since: 1997 1976
24th Warmest Warmest since: 1998 1931
Ties: 1922, 1949, 1987
May–Dec 1999
8-Month
60.4°F
(15.8°C)
59.0°F
(15.0°C)
1.4°F
(0.8°C)
101st Coolest Coolest since: 1997 1917
27th Warmest Warmest since: 1998 1931
Ties: 1914, 1930, 1954, 1965, 1971, 2005
Apr–Dec 1999
9-Month
59.7°F
(15.4°C)
58.2°F
(14.6°C)
1.5°F
(0.8°C)
105th Coolest Coolest since: 1997 1917
23rd Warmest Warmest since: 1998 1931
Ties: 1922, 1939, 2011
Mar–Dec 1999
10-Month
57.6°F
(14.2°C)
56.3°F
(13.5°C)
1.3°F
(0.7°C)
101st Coolest Coolest since: 1997 1917
27th Warmest Warmest since: 1998 2012
Ties: 1918, 1956, 1988
Feb–Dec 1999
11-Month
55.7°F
(13.2°C)
53.7°F
(12.1°C)
2.0°F
(1.1°C)
115th Coolest Coolest since: 1997 1917
13th Warmest Warmest since: 1998 2012
Ties: 1941, 2005
Jan–Dec 1999
12-Month
52.9°F
(11.6°C)
51.2°F
(10.7°C)
1.7°F
(0.9°C)
108th Coolest Coolest since: 1997 1917
20th Warmest Warmest since: 1998 2012
Ties: 1991, 2007
Jul 1998–Dec 1999
18-Month
55.1°F
(12.8°C)
53.0°F
(11.7°C)
2.1°F
(1.1°C)
121st Coolest Coolest since: 1998 1904
6th Warmest Warmest since: 1998 2012
Ties: 1939, 1954, 1998
Jan 1998–Dec 1999
24-Month
53.7°F
(12.1°C)
51.2°F
(10.7°C)
2.5°F
(1.4°C)
125th Coolest Coolest since: 1998 1979
2nd Warmest Warmest since: 1931 2017
Ties: 1922, 1931
Jan 1997–Dec 1999
36-Month
52.6°F
(11.4°C)
51.2°F
(10.7°C)
1.4°F
(0.7°C)
111th Coolest Coolest since: 1998 1905
15th Warmest Warmest since: 1988 2017
Ties: 1935
Jan 1996–Dec 1999
48-Month
51.8°F
(11.0°C)
51.2°F
(10.7°C)
0.6°F
(0.3°C)
84th Coolest Coolest since: 1998 1905
41st Warmest Warmest since: 1993 1934
Ties: 1992, 1993, 2009
Jan 1995–Dec 1999
60-Month
51.6°F
(10.9°C)
51.2°F
(10.7°C)
0.4°F
(0.2°C)
75th Coolest Coolest since: 1998 1905
49th Warmest Warmest since: 1994 1934
Ties: 1948, 1989, 2014

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published June 2022, retrieved on June 27, 2022 from https://www.ncdc.noaa.gov/cag/