Climate at a Glance

Statewide 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 November 2019. For more information, please see Climatological Rankings.


Illinois

Precipitation Rankings, May 2010

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 2010
1-Month
5.40"
(137.16mm)
4.08"
(103.63mm)
1.32"
(33.53mm)
101st Driest Driest since: 2008 1934
25th Wettest Wettest since: 2009 1995
Apr–May 2010
2-Month
8.76"
(222.50mm)
7.80"
(198.12mm)
0.96"
(24.38mm)
90th Driest Driest since: 2007 1934
36th Wettest Wettest since: 2009 1927
Mar–May 2010
3-Month
11.50"
(292.10mm)
10.89"
(276.61mm)
0.61"
(15.49mm)
80th Driest Driest since: 2007 1934
46th Wettest Wettest since: 2009 1927
Feb–May 2010
4-Month
13.03"
(330.96mm)
12.75"
(323.85mm)
0.28"
(7.11mm)
70th Driest Driest since: 2007 1934
56th Wettest Wettest since: 2009 2019
Jan–May 2010
5-Month
14.47"
(367.54mm)
14.87"
(377.70mm)
-0.40"
(-10.16mm)
58th Driest Driest since: 2007 1934
68th Wettest Wettest since: 2009 2019
Dec 2009–May 2010
6-Month
18.45"
(468.63mm)
17.20"
(436.88mm)
1.25"
(31.75mm)
79th Driest Driest since: 2007 1934
46th Wettest Wettest since: 2009 2019
Nov 2009–May 2010
7-Month
20.93"
(531.62mm)
19.95"
(506.73mm)
0.98"
(24.89mm)
78th Driest Driest since: 2007 1934
47th Wettest Wettest since: 2009 2019
Ties: 1944, 2007
Oct 2009–May 2010
8-Month
29.42"
(747.27mm)
22.74"
(577.60mm)
6.68"
(169.67mm)
111th Driest Driest since: 2009 1934
14th Wettest Wettest since: 2008 2019
Sep 2009–May 2010
9-Month
31.70"
(805.18mm)
26.24"
(666.50mm)
5.46"
(138.68mm)
104th Driest Driest since: 2007 1934
21st Wettest Wettest since: 2009 1927
Aug 2009–May 2010
10-Month
36.42"
(925.07mm)
29.74"
(755.40mm)
6.68"
(169.67mm)
113th Driest Driest since: 2008 1934
12th Wettest Wettest since: 2009 1927
Jul 2009–May 2010
11-Month
41.01"
(1,041.65mm)
33.37"
(847.60mm)
7.64"
(194.05mm)
113th Driest Driest since: 2008 1934
12th Wettest Wettest since: 2009 1927
Jun 2009–May 2010
12-Month
46.13"
(1,171.70mm)
37.43"
(950.72mm)
8.70"
(220.98mm)
114th Driest Driest since: 2008 1934
11th Wettest Wettest since: 2009 1927
Dec 2008–May 2010
18-Month
69.68"
(1,769.87mm)
54.62"
(1,387.35mm)
15.06"
(382.52mm)
120th Driest Driest since: 2008 1902
4th Wettest Wettest since: 2009 2009
Jun 2008–May 2010
24-Month
94.54"
(2,401.32mm)
74.85"
(1,901.19mm)
19.69"
(500.13mm)
122nd Driest Driest since: 2009 1941
2nd Wettest Wettest since: 1974 1974
Jun 2007–May 2010
36-Month
138.08"
(3,507.23mm)
112.24"
(2,850.90mm)
25.84"
(656.33mm)
121st Driest Driest since: 2009 1902
2nd Wettest Wettest to Date 2011
Jun 2006–May 2010
48-Month
177.36"
(4,504.94mm)
149.63"
(3,800.60mm)
27.73"
(704.34mm)
118th Driest Driest since: 2009 1956
4th Wettest Wettest to Date 2011
Jun 2005–May 2010
60-Month
211.27"
(5,366.26mm)
187.07"
(4,751.58mm)
24.20"
(614.68mm)
115th Driest Driest since: 2009 1934
6th Wettest Wettest since: 1986 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2019, retrieved on December 10, 2019 from https://www.ncdc.noaa.gov/cag/