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 1921

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 1921
1-Month
2.09"
(53.09mm)
4.08"
(103.63mm)
-1.99"
(-50.54mm)
12th Driest Driest since: 1911 1934
114th Wettest Wettest since: 1920 1995
Apr–May 1921
2-Month
6.82"
(173.23mm)
7.80"
(198.12mm)
-0.98"
(-24.89mm)
44th Driest Driest since: 1916 1934
82nd Wettest Wettest since: 1920 1927
Mar–May 1921
3-Month
11.96"
(303.78mm)
10.89"
(276.61mm)
1.07"
(27.17mm)
86th Driest Driest since: 1919 1934
40th Wettest Wettest since: 1920 1927
Ties: 1897
Feb–May 1921
4-Month
12.78"
(324.61mm)
12.75"
(323.85mm)
0.03"
(0.76mm)
62nd Driest Driest since: 1917 1934
64th Wettest Wettest since: 1920 2019
Jan–May 1921
5-Month
14.35"
(364.49mm)
14.87"
(377.70mm)
-0.52"
(-13.21mm)
56th Driest Driest since: 1919 1934
70th Wettest Wettest since: 1920 2019
Dec 1920–May 1921
6-Month
17.14"
(435.36mm)
17.20"
(436.88mm)
-0.06"
(-1.52mm)
62nd Driest Driest since: 1920 1934
63rd Wettest Wettest since: 1916 2019
Ties: 2018
Nov 1920–May 1921
7-Month
18.26"
(463.80mm)
19.95"
(506.73mm)
-1.69"
(-42.93mm)
33rd Driest Driest since: 1918 1934
92nd Wettest Wettest since: 1920 2019
Ties: 1928
Oct 1920–May 1921
8-Month
20.32"
(516.13mm)
22.74"
(577.60mm)
-2.42"
(-61.47mm)
29th Driest Driest since: 1918 1934
96th Wettest Wettest since: 1920 2019
Sep 1920–May 1921
9-Month
23.04"
(585.22mm)
26.24"
(666.50mm)
-3.20"
(-81.28mm)
25th Driest Driest since: 1918 1934
100th Wettest Wettest since: 1920 1927
Aug 1920–May 1921
10-Month
25.95"
(659.13mm)
29.74"
(755.40mm)
-3.79"
(-96.27mm)
27th Driest Driest since: 1918 1934
98th Wettest Wettest since: 1920 1927
Jul 1920–May 1921
11-Month
28.48"
(723.39mm)
33.37"
(847.60mm)
-4.89"
(-124.21mm)
19th Driest Driest since: 1918 1934
106th Wettest Wettest since: 1920 1927
Jun 1920–May 1921
12-Month
30.56"
(776.22mm)
37.43"
(950.72mm)
-6.87"
(-174.50mm)
9th Driest Driest since: 1914 1934
116th Wettest Wettest since: 1920 1927
Dec 1919–May 1921
18-Month
47.65"
(1,210.31mm)
54.62"
(1,387.35mm)
-6.97"
(-177.04mm)
17th Driest Driest since: 1915 1902
107th Wettest Wettest since: 1920 2009
Jun 1919–May 1921
24-Month
70.87"
(1,800.10mm)
74.85"
(1,901.19mm)
-3.98"
(-101.09mm)
33rd Driest Driest since: 1919 1941
91st Wettest Wettest since: 1920 1974
Jun 1918–May 1921
36-Month
106.80"
(2,712.72mm)
112.24"
(2,850.90mm)
-5.44"
(-138.18mm)
27th Driest Driest since: 1919 1902
96th Wettest Wettest since: 1920 2011
Jun 1917–May 1921
48-Month
140.14"
(3,559.56mm)
149.63"
(3,800.60mm)
-9.49"
(-241.04mm)
18th Driest Driest since: 1917 1956
104th Wettest Wettest since: 1920 2011
Jun 1916–May 1921
60-Month
175.18"
(4,449.57mm)
187.07"
(4,751.58mm)
-11.89"
(-302.01mm)
16th Driest Driest since: 1918 1934
105th Wettest Wettest since: 1920 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 13, 2019 from https://www.ncdc.noaa.gov/cag/