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 December 2019. For more information, please see Climatological Rankings.


Illinois

Precipitation Rankings, October 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
October 2009
1-Month
8.49"
(215.65mm)
2.79"
(70.87mm)
5.70"
(144.78mm)
124th Driest Driest since: 2008 1964
2nd Wettest Wettest since: 1941 1941
Sep–Oct 2009
2-Month
10.77"
(273.56mm)
6.29"
(159.77mm)
4.48"
(113.79mm)
120th Driest Driest since: 2008 1897
6th Wettest Wettest since: 1986 1941
Aug–Oct 2009
3-Month
15.49"
(393.45mm)
9.78"
(248.41mm)
5.71"
(145.04mm)
121st Driest Driest since: 2008 1897
5th Wettest Wettest since: 1977 1926
Jul–Oct 2009
4-Month
20.08"
(510.03mm)
13.42"
(340.87mm)
6.66"
(169.16mm)
123rd Driest Driest since: 2008 1897
3rd Wettest Wettest since: 1993 1993
Jun–Oct 2009
5-Month
25.20"
(640.08mm)
17.50"
(444.50mm)
7.70"
(195.58mm)
123rd Driest Driest since: 2008 1908
3rd Wettest Wettest since: 1993 1993
May–Oct 2009
6-Month
30.85"
(783.59mm)
21.59"
(548.39mm)
9.26"
(235.20mm)
124th Driest Driest since: 2008 1897
2nd Wettest Wettest since: 1993 1993
Apr–Oct 2009
7-Month
37.01"
(940.05mm)
25.30"
(642.62mm)
11.71"
(297.43mm)
125th Driest Driest since: 2008 1988
1st Wettest Wettest to Date 2009
Mar–Oct 2009
8-Month
41.06"
(1,042.92mm)
28.39"
(721.11mm)
12.67"
(321.81mm)
125th Driest Driest since: 2008 1988
1st Wettest Wettest to Date 2009
Feb–Oct 2009
9-Month
43.49"
(1,104.65mm)
30.25"
(768.35mm)
13.24"
(336.30mm)
125th Driest Driest since: 2008 1988
1st Wettest Wettest to Date 2009
Jan–Oct 2009
10-Month
44.50"
(1,130.30mm)
32.38"
(822.45mm)
12.12"
(307.85mm)
123rd Driest Driest since: 2008 1901
3rd Wettest Wettest since: 1993 2019
Dec 2008–Oct 2009
11-Month
48.75"
(1,238.25mm)
34.70"
(881.38mm)
14.05"
(356.87mm)
123rd Driest Driest since: 2008 1901
2nd Wettest Wettest to Date 2019
Nov 2008–Oct 2009
12-Month
50.24"
(1,276.10mm)
37.45"
(951.23mm)
12.79"
(324.87mm)
122nd Driest Driest since: 2008 1901
3rd Wettest Wettest since: 1993 1993
May 2008–Oct 2009
18-Month
78.97"
(2,005.84mm)
59.01"
(1,498.85mm)
19.96"
(506.99mm)
124th Driest Driest since: 2008 1940
1st Wettest Wettest to Date 2009
Nov 2007–Oct 2009
24-Month
100.26"
(2,546.60mm)
74.88"
(1,901.95mm)
25.38"
(644.65mm)
123rd Driest Driest since: 2008 1964
1st Wettest Wettest to Date 2009
Nov 2006–Oct 2009
36-Month
138.08"
(3,507.23mm)
112.27"
(2,851.66mm)
25.81"
(655.57mm)
121st Driest Driest since: 2008 1901
2nd Wettest Wettest to Date 2010
Nov 2005–Oct 2009
48-Month
176.67"
(4,487.42mm)
149.71"
(3,802.63mm)
26.96"
(684.79mm)
118th Driest Driest since: 2008 1956
4th Wettest Wettest to Date 2011
Nov 2004–Oct 2009
60-Month
209.99"
(5,333.75mm)
187.11"
(4,752.59mm)
22.88"
(581.16mm)
112th Driest Driest since: 2008 1956
9th Wettest Wettest since: 1986 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 23, 2020 from https://www.ncdc.noaa.gov/cag/