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 2009

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 2009
1-Month
5.65"
(143.51mm)
4.08"
(103.63mm)
1.57"
(39.88mm)
104th Driest Driest since: 2008 1934
22nd Wettest Wettest since: 2004 1995
Apr–May 2009
2-Month
11.81"
(299.97mm)
7.80"
(198.12mm)
4.01"
(101.85mm)
114th Driest Driest since: 2008 1934
12th Wettest Wettest since: 2002 1927
Mar–May 2009
3-Month
15.86"
(402.84mm)
10.89"
(276.61mm)
4.97"
(126.23mm)
119th Driest Driest since: 2008 1934
7th Wettest Wettest since: 1973 1927
Feb–May 2009
4-Month
18.29"
(464.57mm)
12.75"
(323.85mm)
5.54"
(140.72mm)
117th Driest Driest since: 2007 1934
9th Wettest Wettest since: 2008 2019
Jan–May 2009
5-Month
19.30"
(490.22mm)
14.87"
(377.70mm)
4.43"
(112.52mm)
107th Driest Driest since: 2007 1934
19th Wettest Wettest since: 2008 2019
Dec 2008–May 2009
6-Month
23.55"
(598.17mm)
17.20"
(436.88mm)
6.35"
(161.29mm)
116th Driest Driest since: 2007 1934
9th Wettest Wettest since: 2008 2019
Nov 2008–May 2009
7-Month
25.04"
(636.02mm)
19.95"
(506.73mm)
5.09"
(129.29mm)
105th Driest Driest since: 2007 1934
20th Wettest Wettest since: 2008 2019
Oct 2008–May 2009
8-Month
27.46"
(697.48mm)
22.74"
(577.60mm)
4.72"
(119.88mm)
104th Driest Driest since: 2007 1934
21st Wettest Wettest since: 2008 2019
Sep 2008–May 2009
9-Month
35.08"
(891.03mm)
26.24"
(666.50mm)
8.84"
(224.53mm)
121st Driest Driest since: 2008 1934
4th Wettest Wettest since: 1973 1927
Aug 2008–May 2009
10-Month
37.01"
(940.05mm)
29.74"
(755.40mm)
7.27"
(184.65mm)
115th Driest Driest since: 2008 1934
10th Wettest Wettest since: 2002 1927
Jul 2008–May 2009
11-Month
42.92"
(1,090.17mm)
33.37"
(847.60mm)
9.55"
(242.57mm)
121st Driest Driest since: 2008 1934
4th Wettest Wettest since: 1973 1927
Jun 2008–May 2009
12-Month
48.41"
(1,229.61mm)
37.43"
(950.72mm)
10.98"
(278.89mm)
122nd Driest Driest since: 2008 1934
3rd Wettest Wettest since: 1927 1927
Dec 2007–May 2009
18-Month
73.34"
(1,862.84mm)
54.62"
(1,387.35mm)
18.72"
(475.49mm)
123rd Driest Driest since: 2008 1902
1st Wettest Wettest to Date 2009
Jun 2007–May 2009
24-Month
91.95"
(2,335.53mm)
74.85"
(1,901.19mm)
17.10"
(434.34mm)
119th Driest Driest since: 2008 1941
5th Wettest Wettest since: 1974 1974
Jun 2006–May 2009
36-Month
131.23"
(3,333.24mm)
112.24"
(2,850.90mm)
18.99"
(482.34mm)
114th Driest Driest since: 2008 1902
9th Wettest Wettest since: 1995 2011
Jun 2005–May 2009
48-Month
165.14"
(4,194.56mm)
149.63"
(3,800.60mm)
15.51"
(393.96mm)
104th Driest Driest since: 2008 1956
18th Wettest Wettest since: 1996 2011
Jun 2004–May 2009
60-Month
202.69"
(5,148.33mm)
187.07"
(4,751.58mm)
15.62"
(396.75mm)
101st Driest Driest since: 2008 1934
20th Wettest Wettest since: 1997 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2019, retrieved on December 15, 2019 from https://www.ncdc.noaa.gov/cag/