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, October 2018

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 2018
1-Month
3.68"
(93.47mm)
2.79"
(70.87mm)
0.89"
(22.60mm)
91st Driest Driest since: 2016 1964
35th Wettest Wettest since: 2017 1941
Sep–Oct 2018
2-Month
8.58"
(217.93mm)
6.29"
(159.77mm)
2.29"
(58.16mm)
102nd Driest Driest since: 2017 1897
24th Wettest Wettest since: 2012 1941
Aug–Oct 2018
3-Month
13.49"
(342.65mm)
9.78"
(248.41mm)
3.71"
(94.24mm)
113th Driest Driest since: 2017 1897
13th Wettest Wettest since: 2014 1926
Jul–Oct 2018
4-Month
16.93"
(430.02mm)
13.42"
(340.87mm)
3.51"
(89.15mm)
108th Driest Driest since: 2017 1897
18th Wettest Wettest since: 2016 1993
Jun–Oct 2018
5-Month
23.22"
(589.79mm)
17.50"
(444.50mm)
5.72"
(145.29mm)
116th Driest Driest since: 2017 1908
10th Wettest Wettest since: 2014 1993
May–Oct 2018
6-Month
27.02"
(686.31mm)
21.59"
(548.39mm)
5.43"
(137.92mm)
111th Driest Driest since: 2017 1897
15th Wettest Wettest since: 2015 1993
Apr–Oct 2018
7-Month
29.44"
(747.78mm)
25.30"
(642.62mm)
4.14"
(105.16mm)
100th Driest Driest since: 2017 1988
26th Wettest Wettest since: 2016 2009
Mar–Oct 2018
8-Month
33.35"
(847.09mm)
28.39"
(721.11mm)
4.96"
(125.98mm)
105th Driest Driest since: 2017 1988
21st Wettest Wettest since: 2016 2009
Feb–Oct 2018
9-Month
38.23"
(971.04mm)
30.25"
(768.35mm)
7.98"
(202.69mm)
116th Driest Driest since: 2017 1988
10th Wettest Wettest since: 2009 2009
Jan–Oct 2018
10-Month
39.53"
(1,004.06mm)
32.38"
(822.45mm)
7.15"
(181.61mm)
115th Driest Driest since: 2017 1901
11th Wettest Wettest since: 2009 2019
Dec 2017–Oct 2018
11-Month
40.37"
(1,025.40mm)
34.70"
(881.38mm)
5.67"
(144.02mm)
110th Driest Driest since: 2017 1901
15th Wettest Wettest since: 2016 2019
Nov 2017–Oct 2018
12-Month
42.63"
(1,082.80mm)
37.45"
(951.23mm)
5.18"
(131.57mm)
105th Driest Driest since: 2017 1901
20th Wettest Wettest since: 2016 1993
May 2017–Oct 2018
18-Month
64.03"
(1,626.36mm)
59.01"
(1,498.85mm)
5.02"
(127.51mm)
96th Driest Driest since: 2014 1940
29th Wettest Wettest since: 2017 2009
Nov 2016–Oct 2018
24-Month
81.32"
(2,065.53mm)
74.88"
(1,901.95mm)
6.44"
(163.58mm)
95th Driest Driest since: 2013 1964
29th Wettest Wettest since: 2017 2009
Nov 2015–Oct 2018
36-Month
129.27"
(3,283.46mm)
112.27"
(2,851.66mm)
17.00"
(431.80mm)
113th Driest Driest since: 2017 1901
10th Wettest Wettest since: 2016 2010
Nov 2014–Oct 2018
48-Month
169.64"
(4,308.86mm)
149.71"
(3,802.63mm)
19.93"
(506.23mm)
112th Driest Driest since: 2017 1956
10th Wettest Wettest since: 2016 2011
Nov 2013–Oct 2018
60-Month
212.14"
(5,388.36mm)
187.11"
(4,752.59mm)
25.03"
(635.77mm)
115th Driest Driest since: 2017 1956
6th Wettest Wettest since: 2012 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2019, retrieved on December 14, 2019 from https://www.ncdc.noaa.gov/cag/