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 June 2021. For more information, please see Climatological Rankings.


Illinois, Climate Division 2. Northeast

Average Temperature Rankings, September 1999

View Period (Months):All1234567891011121824364860
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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Warmest/Coolest
Since
Record
September 1999
1-Month
62.8°F
(17.1°C)
63.7°F
(17.6°C)
-0.9°F
(-0.5°C)
42nd Coolest Coolest since: 1995 1918
85th Warmest Warmest since: 1998 1897
Ties: 1937
Aug–Sep 1999
2-Month
66.2°F
(19.0°C)
67.5°F
(19.7°C)
-1.3°F
(-0.7°C)
27th Coolest Coolest since: 1997 1902
100th Warmest Warmest since: 1998 1947
Ties: 1957, 1962, 1963, 1997
Jul–Sep 1999
3-Month
69.9°F
(21.1°C)
69.3°F
(20.7°C)
0.6°F
(0.4°C)
75th Coolest Coolest since: 1997 1924
52nd Warmest Warmest since: 1998 1936
Ties: 1913, 1914, 2006
Jun–Sep 1999
4-Month
70.1°F
(21.2°C)
69.2°F
(20.7°C)
0.9°F
(0.5°C)
87th Coolest Coolest since: 1997 1915
40th Warmest Warmest since: 1998 2005
Ties: 1922, 1930, 1971
May–Sep 1999
5-Month
68.5°F
(20.3°C)
67.1°F
(19.5°C)
1.4°F
(0.8°C)
99th Coolest Coolest since: 1997 1924
28th Warmest Warmest since: 1998 1921, 1988
Ties: 1977, 2002, 2020
Apr–Sep 1999
6-Month
65.5°F
(18.6°C)
63.9°F
(17.7°C)
1.6°F
(0.9°C)
106th Coolest Coolest since: 1997 1907
21st Warmest Warmest since: 1998 1921
Mar–Sep 1999
7-Month
61.2°F
(16.2°C)
59.9°F
(15.5°C)
1.3°F
(0.7°C)
103rd Coolest Coolest since: 1997 1924
24th Warmest Warmest since: 1998 2012
Ties: 1911, 1938, 2006
Feb–Sep 1999
8-Month
57.8°F
(14.3°C)
55.5°F
(13.1°C)
2.3°F
(1.2°C)
116th Coolest Coolest since: 1997 1904, 1917
11th Warmest Warmest since: 1998 2012
Ties: 2000
Jan–Sep 1999
9-Month
53.6°F
(12.0°C)
51.7°F
(10.9°C)
1.9°F
(1.1°C)
108th Coolest Coolest since: 1997 1904, 1912
19th Warmest Warmest since: 1998 2012
Ties: 1938, 1955
Dec 1998–Sep 1999
10-Month
51.6°F
(10.9°C)
49.1°F
(9.5°C)
2.5°F
(1.4°C)
114th Coolest Coolest since: 1997 1904
12th Warmest Warmest since: 1998 2012
Nov 1998–Sep 1999
11-Month
50.8°F
(10.4°C)
48.1°F
(8.9°C)
2.7°F
(1.5°C)
114th Coolest Coolest since: 1997 1904
12th Warmest Warmest since: 1998 2012
Oct 1998–Sep 1999
12-Month
51.1°F
(10.6°C)
48.4°F
(9.1°C)
2.7°F
(1.5°C)
116th Coolest Coolest since: 1997 1904
10th Warmest Warmest since: 1998 2012
Apr 1998–Sep 1999
18-Month
56.2°F
(13.4°C)
53.6°F
(12.0°C)
2.6°F
(1.4°C)
121st Coolest Coolest since: 1998 1904
5th Warmest Warmest to Date 2012
Oct 1997–Sep 1999
24-Month
51.5°F
(10.8°C)
48.5°F
(9.2°C)
3.0°F
(1.6°C)
123rd Coolest Coolest since: 1998 1918
2nd Warmest Warmest to Date 2017
Oct 1996–Sep 1999
36-Month
50.1°F
(10.1°C)
48.5°F
(9.2°C)
1.6°F
(0.9°C)
113th Coolest Coolest since: 1998 1979
11th Warmest Warmest since: 1955 2000
Ties: 1923, 1955
Oct 1995–Sep 1999
48-Month
49.3°F
(9.6°C)
48.5°F
(9.2°C)
0.8°F
(0.4°C)
96th Coolest Coolest since: 1998 1905, 1918
27th Warmest Warmest since: 1993 2001, 2002, 2019
Ties: 1932, 1942, 1992, 1993, 2009, 2010, 2014
Oct 1994–Sep 1999
60-Month
49.5°F
(9.7°C)
48.4°F
(9.1°C)
1.1°F
(0.6°C)
100th Coolest Coolest since: 1998 1905, 1906
22nd Warmest Warmest since: 1991 2002
Ties: 1923, 1957, 1990

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published July 2021, retrieved on August 4, 2021 from https://www.ncdc.noaa.gov/cag/