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


Iowa

Precipitation Rankings, May 1987

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1987
1-Month
3.97"
(100.84mm)
4.05"
(102.87mm)
-0.08"
(-2.03mm)
64th Driest Driest since: 1985 1934
62nd Wettest Wettest since: 1986 2013
Ties: 1937
Apr–May 1987
2-Month
5.89"
(149.61mm)
6.99"
(177.55mm)
-1.10"
(-27.94mm)
41st Driest Driest since: 1985 1934
85th Wettest Wettest since: 1986 2013
Mar–May 1987
3-Month
9.06"
(230.12mm)
8.95"
(227.33mm)
0.11"
(2.79mm)
64th Driest Driest since: 1985 1934
62nd Wettest Wettest since: 1986 2013
Feb–May 1987
4-Month
9.32"
(236.73mm)
9.96"
(252.98mm)
-0.64"
(-16.25mm)
43rd Driest Driest since: 1985 1934
83rd Wettest Wettest since: 1986 2013
Jan–May 1987
5-Month
9.64"
(244.86mm)
10.94"
(277.88mm)
-1.30"
(-33.02mm)
34th Driest Driest since: 1985 1934
92nd Wettest Wettest since: 1986 2013
Dec 1986–May 1987
6-Month
10.45"
(265.43mm)
12.04"
(305.82mm)
-1.59"
(-40.39mm)
28th Driest Driest since: 1981 1934
97th Wettest Wettest since: 1986 2013
Nov 1986–May 1987
7-Month
11.60"
(294.64mm)
13.78"
(350.01mm)
-2.18"
(-55.37mm)
26th Driest Driest since: 1981 1934
99th Wettest Wettest since: 1986 2013
Oct 1986–May 1987
8-Month
15.37"
(390.40mm)
16.10"
(408.94mm)
-0.73"
(-18.54mm)
49th Driest Driest since: 1981 1934
76th Wettest Wettest since: 1986 2019
Sep 1986–May 1987
9-Month
22.16"
(562.86mm)
19.79"
(502.67mm)
2.37"
(60.19mm)
88th Driest Driest since: 1985 1934
37th Wettest Wettest since: 1986 2019
Aug 1986–May 1987
10-Month
26.08"
(662.43mm)
23.65"
(600.71mm)
2.43"
(61.72mm)
89th Driest Driest since: 1985 1934
36th Wettest Wettest since: 1986 2019
Jul 1986–May 1987
11-Month
31.13"
(790.70mm)
27.54"
(699.52mm)
3.59"
(91.18mm)
94th Driest Driest since: 1985 1934
31st Wettest Wettest since: 1986 2019
Jun 1986–May 1987
12-Month
35.78"
(908.81mm)
32.14"
(816.36mm)
3.64"
(92.45mm)
91st Driest Driest since: 1986 1934
34th Wettest Wettest since: 1984 2019
Dec 1985–May 1987
18-Month
50.81"
(1,290.57mm)
44.20"
(1,122.68mm)
6.61"
(167.89mm)
103rd Driest Driest since: 1986 1934
21st Wettest Wettest since: 1984 2019
Jun 1985–May 1987
24-Month
71.17"
(1,807.72mm)
64.29"
(1,632.97mm)
6.88"
(174.75mm)
98th Driest Driest since: 1986 1957
26th Wettest Wettest since: 1984 2011
Jun 1984–May 1987
36-Month
103.81"
(2,636.77mm)
96.33"
(2,446.78mm)
7.48"
(189.99mm)
92nd Driest Driest since: 1982 1958
31st Wettest Wettest since: 1986 2011
Jun 1983–May 1987
48-Month
141.35"
(3,590.29mm)
128.31"
(3,259.07mm)
13.04"
(331.22mm)
100th Driest Driest since: 1983 1957
22nd Wettest Wettest since: 1986 2011
Jun 1982–May 1987
60-Month
181.21"
(4,602.73mm)
160.32"
(4,072.13mm)
20.89"
(530.60mm)
111th Driest Driest since: 1985 1958
10th Wettest Wettest since: 1986 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 23, 2019 from https://www.ncdc.noaa.gov/cag/