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


Illinois

Precipitation Rankings, May 1901

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 1901
1-Month
1.87"
(47.50mm)
4.08"
(103.63mm)
-2.21"
(-56.13mm)
8th Driest Driest since: 1897 1934
118th Wettest Wettest since: 1900 1995
Apr–May 1901
2-Month
3.48"
(88.39mm)
7.80"
(198.12mm)
-4.32"
(-109.73mm)
2nd Driest Driest to Date 1934
124th Wettest Wettest since: 1900 1927
Mar–May 1901
3-Month
6.91"
(175.51mm)
10.89"
(276.61mm)
-3.98"
(-101.10mm)
12th Driest Driest since: 1895 1934
114th Wettest Wettest since: 1900 1927
Feb–May 1901
4-Month
8.50"
(215.90mm)
12.75"
(323.85mm)
-4.25"
(-107.95mm)
11th Driest Driest since: 1895 1934
115th Wettest Wettest since: 1900 2019
Jan–May 1901
5-Month
10.01"
(254.25mm)
14.87"
(377.70mm)
-4.86"
(-123.45mm)
8th Driest Driest since: 1895 1934
118th Wettest Wettest since: 1900 2019
Dec 1900–May 1901
6-Month
10.89"
(276.61mm)
17.20"
(436.88mm)
-6.31"
(-160.27mm)
3rd Driest Driest to Date 1934
122nd Wettest Wettest since: 1900 2019
Nov 1900–May 1901
7-Month
13.76"
(349.50mm)
19.95"
(506.73mm)
-6.19"
(-157.23mm)
5th Driest Driest to Date 1934
120th Wettest Wettest since: 1900 2019
Oct 1900–May 1901
8-Month
16.27"
(413.26mm)
22.74"
(577.60mm)
-6.47"
(-164.34mm)
3rd Driest Driest to Date 1934
122nd Wettest Wettest since: 1900 2019
Sep 1900–May 1901
9-Month
19.68"
(499.87mm)
26.24"
(666.50mm)
-6.56"
(-166.63mm)
7th Driest Driest to Date 1934
118th Wettest Wettest since: 1900 1927
Aug 1900–May 1901
10-Month
23.80"
(604.52mm)
29.74"
(755.40mm)
-5.94"
(-150.88mm)
14th Driest Driest to Date 1934
111th Wettest Wettest since: 1900 1927
Jul 1900–May 1901
11-Month
28.15"
(715.01mm)
33.37"
(847.60mm)
-5.22"
(-132.59mm)
16th Driest Driest to Date 1934
109th Wettest Wettest since: 1900 1927
Jun 1900–May 1901
12-Month
32.45"
(824.23mm)
37.43"
(950.72mm)
-4.98"
(-126.49mm)
23rd Driest Driest since: 1900 1934
102nd Wettest Wettest since: 1899 1927
Dec 1899–May 1901
18-Month
47.58"
(1,208.53mm)
54.62"
(1,387.35mm)
-7.04"
(-178.82mm)
14th Driest Driest since: 1900 1902
110th Wettest Wettest since: 1899 2009
Jun 1899–May 1901
24-Month
63.47"
(1,612.14mm)
74.85"
(1,901.19mm)
-11.38"
(-289.05mm)
8th Driest Driest to Date 1941
116th Wettest Wettest since: 1900 1974
Jun 1898–May 1901
36-Month
102.03"
(2,591.56mm)
112.24"
(2,850.90mm)
-10.21"
(-259.34mm)
13th Driest Driest to Date 1902
110th Wettest Wettest since: 1900 2011
Jun 1897–May 1901
48-Month
141.81"
(3,601.97mm)
149.63"
(3,800.60mm)
-7.82"
(-198.63mm)
24th Driest Driest to Date 1956
98th Wettest Wettest since: 1900 2011
Jun 1896–May 1901
60-Month
183.06"
(4,649.72mm)
187.07"
(4,751.58mm)
-4.01"
(-101.86mm)
41st Driest Driest to Date 1934
80th Wettest Wettest since: 1900 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 17, 2019 from https://www.ncdc.noaa.gov/cag/