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 1981

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 1981
1-Month
6.20"
(157.48mm)
4.08"
(103.63mm)
2.12"
(53.85mm)
111th Driest Driest since: 1980 1934
15th Wettest Wettest since: 1974 1995
Apr–May 1981
2-Month
11.24"
(285.50mm)
7.80"
(198.12mm)
3.44"
(87.38mm)
110th Driest Driest since: 1980 1934
16th Wettest Wettest since: 1970 1927
Mar–May 1981
3-Month
12.37"
(314.20mm)
10.89"
(276.61mm)
1.48"
(37.59mm)
89th Driest Driest since: 1980 1934
37th Wettest Wettest since: 1979 1927
Feb–May 1981
4-Month
14.63"
(371.60mm)
12.75"
(323.85mm)
1.88"
(47.75mm)
93rd Driest Driest since: 1980 1934
33rd Wettest Wettest since: 1975 2019
Jan–May 1981
5-Month
14.94"
(379.48mm)
14.87"
(377.70mm)
0.07"
(1.78mm)
65th Driest Driest since: 1980 1934
61st Wettest Wettest since: 1979 2019
Dec 1980–May 1981
6-Month
16.68"
(423.67mm)
17.20"
(436.88mm)
-0.52"
(-13.21mm)
53rd Driest Driest since: 1980 1934
72nd Wettest Wettest since: 1979 2019
Nov 1980–May 1981
7-Month
17.91"
(454.91mm)
19.95"
(506.73mm)
-2.04"
(-51.82mm)
30th Driest Driest since: 1980 1934
95th Wettest Wettest since: 1979 2019
Oct 1980–May 1981
8-Month
20.09"
(510.29mm)
22.74"
(577.60mm)
-2.65"
(-67.31mm)
26th Driest Driest since: 1980 1934
99th Wettest Wettest since: 1979 2019
Sep 1980–May 1981
9-Month
24.84"
(630.94mm)
26.24"
(666.50mm)
-1.40"
(-35.56mm)
41st Driest Driest since: 1980 1934
84th Wettest Wettest since: 1979 1927
Aug 1980–May 1981
10-Month
30.14"
(765.56mm)
29.74"
(755.40mm)
0.40"
(10.16mm)
61st Driest Driest since: 1980 1934
64th Wettest Wettest since: 1979 1927
Jul 1980–May 1981
11-Month
33.20"
(843.28mm)
33.37"
(847.60mm)
-0.17"
(-4.32mm)
54th Driest Driest since: 1980 1934
71st Wettest Wettest since: 1979 1927
Jun 1980–May 1981
12-Month
37.68"
(957.07mm)
37.43"
(950.72mm)
0.25"
(6.35mm)
64th Driest Driest since: 1980 1934
61st Wettest Wettest since: 1979 1927
Dec 1979–May 1981
18-Month
50.72"
(1,288.29mm)
54.62"
(1,387.35mm)
-3.90"
(-99.06mm)
30th Driest Driest since: 1977 1902
94th Wettest Wettest since: 1980 2009
Jun 1979–May 1981
24-Month
69.66"
(1,769.36mm)
74.85"
(1,901.19mm)
-5.19"
(-131.83mm)
26th Driest Driest since: 1977 1941
98th Wettest Wettest since: 1980 1974
Jun 1978–May 1981
36-Month
109.51"
(2,781.55mm)
112.24"
(2,850.90mm)
-2.73"
(-69.35mm)
39th Driest Driest since: 1978 1902
84th Wettest Wettest since: 1980 2011
Jun 1977–May 1981
48-Month
151.38"
(3,845.05mm)
149.63"
(3,800.60mm)
1.75"
(44.45mm)
63rd Driest Driest since: 1980 1956
59th Wettest Wettest since: 1977 2011
Jun 1976–May 1981
60-Month
179.37"
(4,556.00mm)
187.07"
(4,751.58mm)
-7.70"
(-195.58mm)
27th Driest Driest since: 1980 1934
94th Wettest Wettest since: 1979 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/