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


Iowa

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
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1981
1-Month
2.54"
(64.52mm)
4.05"
(102.87mm)
-1.51"
(-38.35mm)
18th Driest Driest since: 1961 1934
108th Wettest Wettest since: 1980 2013
Apr–May 1981
2-Month
5.95"
(151.13mm)
6.99"
(177.55mm)
-1.04"
(-26.42mm)
42nd Driest Driest since: 1980 1934
84th Wettest Wettest since: 1979 2013
Mar–May 1981
3-Month
6.70"
(170.18mm)
8.95"
(227.33mm)
-2.25"
(-57.15mm)
20th Driest Driest since: 1980 1934
106th Wettest Wettest since: 1979 2013
Ties: 1941
Feb–May 1981
4-Month
8.11"
(205.99mm)
9.96"
(252.98mm)
-1.85"
(-46.99mm)
25th Driest Driest since: 1980 1934
101st Wettest Wettest since: 1979 2013
Jan–May 1981
5-Month
8.21"
(208.53mm)
10.94"
(277.88mm)
-2.73"
(-69.35mm)
15th Driest Driest since: 1980 1934
111th Wettest Wettest since: 1979 2013
Dec 1980–May 1981
6-Month
9.30"
(236.22mm)
12.04"
(305.82mm)
-2.74"
(-69.60mm)
18th Driest Driest since: 1980 1934
107th Wettest Wettest since: 1979 2013
Nov 1980–May 1981
7-Month
9.73"
(247.14mm)
13.78"
(350.01mm)
-4.05"
(-102.87mm)
9th Driest Driest since: 1980 1934
116th Wettest Wettest since: 1979 2013
Oct 1980–May 1981
8-Month
11.69"
(296.93mm)
16.10"
(408.94mm)
-4.41"
(-112.01mm)
11th Driest Driest since: 1956 1934
114th Wettest Wettest since: 1980 2019
Sep 1980–May 1981
9-Month
14.82"
(376.43mm)
19.79"
(502.67mm)
-4.97"
(-126.24mm)
12th Driest Driest since: 1977 1934
113th Wettest Wettest since: 1980 2019
Aug 1980–May 1981
10-Month
22.64"
(575.06mm)
23.65"
(600.71mm)
-1.01"
(-25.65mm)
50th Driest Driest since: 1980 1934
75th Wettest Wettest since: 1979 2019
Jul 1980–May 1981
11-Month
25.20"
(640.08mm)
27.54"
(699.52mm)
-2.34"
(-59.44mm)
33rd Driest Driest since: 1977 1934
92nd Wettest Wettest since: 1980 2019
Ties: 1938
Jun 1980–May 1981
12-Month
29.97"
(761.24mm)
32.14"
(816.36mm)
-2.17"
(-55.12mm)
44th Driest Driest since: 1980 1934
81st Wettest Wettest since: 1979 2019
Dec 1979–May 1981
18-Month
37.84"
(961.14mm)
44.20"
(1,122.68mm)
-6.36"
(-161.54mm)
14th Driest Driest since: 1977 1934
110th Wettest Wettest since: 1980 2019
Jun 1979–May 1981
24-Month
59.77"
(1,518.16mm)
64.29"
(1,632.97mm)
-4.52"
(-114.81mm)
30th Driest Driest since: 1978 1957
94th Wettest Wettest since: 1980 2011
Jun 1978–May 1981
36-Month
95.31"
(2,420.87mm)
96.33"
(2,446.78mm)
-1.02"
(-25.91mm)
56th Driest Driest since: 1979 1958
67th Wettest Wettest since: 1980 2011
Jun 1977–May 1981
48-Month
132.17"
(3,357.12mm)
128.31"
(3,259.07mm)
3.86"
(98.05mm)
77th Driest Driest since: 1980 1957
45th Wettest Wettest since: 1976 2011
Jun 1976–May 1981
60-Month
153.07"
(3,887.98mm)
160.32"
(4,072.13mm)
-7.25"
(-184.15mm)
26th Driest Driest since: 1967 1958
95th Wettest Wettest since: 1980 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2019, retrieved on August 24, 2019 from https://www.ncdc.noaa.gov/cag/