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 September 2020. For more information, please see Climatological Rankings.


Illinois

Precipitation Rankings, July 2018

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
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  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
July 2018
1-Month
3.44"
(87.38mm)
3.64"
(92.46mm)
-0.20"
(-5.08mm)
61st Driest Driest since: 2014 1930
66th Wettest Wettest since: 2017 1958
Jun–Jul 2018
2-Month
9.73"
(247.14mm)
7.72"
(196.09mm)
2.01"
(51.05mm)
102nd Driest Driest since: 2017 1936
25th Wettest Wettest since: 2016 2015
May–Jul 2018
3-Month
13.53"
(343.66mm)
11.80"
(299.72mm)
1.73"
(43.94mm)
84th Driest Driest since: 2017 1936
43rd Wettest Wettest since: 2016 2015
Apr–Jul 2018
4-Month
15.95"
(405.13mm)
15.52"
(394.21mm)
0.43"
(10.92mm)
67th Driest Driest since: 2012 1988
60th Wettest Wettest since: 2017 1957
Mar–Jul 2018
5-Month
19.86"
(504.44mm)
18.61"
(472.69mm)
1.25"
(31.75mm)
75th Driest Driest since: 2012 1936
52nd Wettest Wettest since: 2017 1973
Feb–Jul 2018
6-Month
24.74"
(628.40mm)
20.47"
(519.94mm)
4.27"
(108.46mm)
104th Driest Driest since: 2017 1936
23rd Wettest Wettest since: 2015 2008
Ties: 2020
Jan–Jul 2018
7-Month
26.04"
(661.42mm)
22.60"
(574.04mm)
3.44"
(87.38mm)
93rd Driest Driest since: 2016 1936
34th Wettest Wettest since: 2017 2008
Dec 2017–Jul 2018
8-Month
26.88"
(682.75mm)
24.92"
(632.97mm)
1.96"
(49.78mm)
75th Driest Driest since: 2014 1936
51st Wettest Wettest since: 2017 2008
Nov 2017–Jul 2018
9-Month
29.14"
(740.16mm)
27.67"
(702.82mm)
1.47"
(37.34mm)
73rd Driest Driest since: 2014 1934
53rd Wettest Wettest since: 2017 1993
Oct 2017–Jul 2018
10-Month
34.14"
(867.16mm)
30.46"
(773.68mm)
3.68"
(93.48mm)
93rd Driest Driest since: 2017 1934
33rd Wettest Wettest since: 2016 2010
Sep 2017–Jul 2018
11-Month
34.97"
(888.24mm)
33.96"
(862.58mm)
1.01"
(25.66mm)
61st Driest Driest since: 2014 1934
65th Wettest Wettest since: 2017 1927
Aug 2017–Jul 2018
12-Month
37.37"
(949.20mm)
37.46"
(951.48mm)
-0.09"
(-2.28mm)
52nd Driest Driest since: 2014 1934
74th Wettest Wettest since: 2017 1927
Feb 2017–Jul 2018
18-Month
61.71"
(1,567.43mm)
57.89"
(1,470.41mm)
3.82"
(97.02mm)
82nd Driest Driest since: 2013 1931
44th Wettest Wettest since: 2017 2010
Aug 2016–Jul 2018
24-Month
80.40"
(2,042.16mm)
74.90"
(1,902.46mm)
5.50"
(139.70mm)
89th Driest Driest since: 2013 1954
36th Wettest Wettest since: 2017 2020
Aug 2015–Jul 2018
36-Month
123.66"
(3,140.96mm)
112.32"
(2,852.93mm)
11.34"
(288.03mm)
105th Driest Driest since: 2014 1965
19th Wettest Wettest since: 2017 2010
Aug 2014–Jul 2018
48-Month
169.78"
(4,312.41mm)
149.69"
(3,802.13mm)
20.09"
(510.28mm)
113th Driest Driest since: 2017 1956
10th Wettest Wettest since: 2016 2011
Aug 2013–Jul 2018
60-Month
205.11"
(5,209.79mm)
187.12"
(4,752.85mm)
17.99"
(456.94mm)
106th Driest Driest since: 2016 1934
16th Wettest Wettest since: 2017 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2020, retrieved on October 27, 2020 from https://www.ncdc.noaa.gov/cag/