Climate at a Glance

City 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 January 2020. For more information, please see Climatological Rankings.


Rockford, Illinois

Average Temperature Rankings, May 2009

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  • Record Warmest
Period Value 1981-2010
Mean
Anomaly Rank
(1895-2019)
Warmest/Coolest
Since
Record
May 2009
1-Month
59.1°F
(15.1°C)
59.7°F
(15.4°C)
-0.6°F
(-0.3°C)
27th Coolest Coolest since: 2008 1966
37th Warmest Warmest since: 2007 1977
Ties: 1969
Apr–May 2009
2-Month
53.9°F
(12.2°C)
54.3°F
(12.4°C)
-0.4°F
(-0.2°C)
32nd Coolest Coolest since: 2008 1966
32nd Warmest Warmest since: 2007 1977
Ties: 1965, 1980
Mar–May 2009
3-Month
48.9°F
(9.4°C)
48.4°F
(9.1°C)
0.5°F
(0.3°C)
45th Coolest Coolest since: 2008 1960
19th Warmest Warmest since: 2007 2012
Ties: 1994
Feb–May 2009
4-Month
43.2°F
(6.2°C)
42.7°F
(5.9°C)
0.5°F
(0.3°C)
45th Coolest Coolest since: 2008 1979
17th Warmest Warmest since: 2006 2012
Jan–May 2009
5-Month
37.3°F
(2.9°C)
38.4°F
(3.6°C)
-1.1°F
(-0.7°C)
33rd Coolest Coolest since: 2008 1979
29th Warmest Warmest since: 2007 2012
Ties: 2013
Dec 2008–May 2009
6-Month
34.4°F
(1.3°C)
36.3°F
(2.4°C)
-1.9°F
(-1.1°C)
20th Coolest Coolest since: 2001 1979
41st Warmest Warmest since: 2008 2012
Ties: 1956, 1972, 2001
Nov 2008–May 2009
7-Month
35.0°F
(1.7°C)
36.6°F
(2.6°C)
-1.6°F
(-0.9°C)
24th Coolest Coolest since: 2001 1979
36th Warmest Warmest since: 2008 2012
Ties: 1958
Oct 2008–May 2009
8-Month
37.1°F
(2.8°C)
38.5°F
(3.6°C)
-1.4°F
(-0.8°C)
25th Coolest Coolest since: 2003 1979
35th Warmest Warmest since: 2008 2012
Ties: 1993, 2003
Sep 2008–May 2009
9-Month
40.3°F
(4.6°C)
41.3°F
(5.2°C)
-1.0°F
(-0.6°C)
29th Coolest Coolest since: 2001 1978
30th Warmest Warmest since: 2008 2012
Ties: 1986
Aug 2008–May 2009
10-Month
43.4°F
(6.3°C)
44.3°F
(6.8°C)
-0.9°F
(-0.5°C)
28th Coolest Coolest since: 2001 1978
31st Warmest Warmest since: 2008 2012
Ties: 1961, 1990
Jul 2008–May 2009
11-Month
46.1°F
(7.8°C)
46.9°F
(8.3°C)
-0.8°F
(-0.5°C)
28th Coolest Coolest since: 2001 1978
31st Warmest Warmest since: 2008 2012
Jun 2008–May 2009
12-Month
48.1°F
(8.9°C)
48.8°F
(9.3°C)
-0.7°F
(-0.4°C)
31st Coolest Coolest since: 2001 1978
28th Warmest Warmest since: 2008 2012
Dec 2007–May 2009
18-Month
43.6°F
(6.4°C)
44.6°F
(7.0°C)
-1.0°F
(-0.6°C)
25th Coolest Coolest since: 1997 1979
31st Warmest Warmest since: 2008 2017
Jun 2007–May 2009
24-Month
48.6°F
(9.2°C)
48.8°F
(9.3°C)
-0.2°F
(-0.1°C)
39th Coolest Coolest since: 1998 1979
15th Warmest Warmest since: 2008 2017
Jun 2006–May 2009
36-Month
49.0°F
(9.4°C)
48.9°F
(9.4°C)
0.1°F
(0.0°C)
37th Coolest Coolest since: 2003 1979
12th Warmest Warmest since: 2008 2017
Ties: 2003
Jun 2005–May 2009
48-Month
49.6°F
(9.8°C)
49.0°F
(9.4°C)
0.6°F
(0.4°C)
39th Coolest Coolest since: 2005 1980
6th Warmest Warmest since: 2008 2007
Ties: 2005
Jun 2004–May 2009
60-Month
49.5°F
(9.7°C)
49.5°F
(9.7°C)
-99°F
(0.0°C)
33rd Coolest Coolest since: 2005 1979, 1980
8th Warmest Warmest since: 2008 2002
Ties: 2004

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: City Time Series, published February 2020, retrieved on February 17, 2020 from https://www.ncdc.noaa.gov/cag/