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


Iowa

Precipitation Rankings, May 2003

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 2003
1-Month
4.61"
(117.09mm)
4.05"
(102.87mm)
0.56"
(14.22mm)
80th Driest Driest since: 2002 1934
46th Wettest Wettest since: 2001 2013
Apr–May 2003
2-Month
7.86"
(199.64mm)
6.99"
(177.55mm)
0.87"
(22.09mm)
80th Driest Driest since: 2002 1934
46th Wettest Wettest since: 2001 2013
Ties: 1919
Mar–May 2003
3-Month
9.01"
(228.85mm)
8.95"
(227.33mm)
0.06"
(1.52mm)
63rd Driest Driest since: 2002 1934
63rd Wettest Wettest since: 2001 2013
Feb–May 2003
4-Month
9.83"
(249.68mm)
9.96"
(252.98mm)
-0.13"
(-3.30mm)
56th Driest Driest since: 2002 1934
70th Wettest Wettest since: 2001 2013
Ties: 1937
Jan–May 2003
5-Month
10.22"
(259.59mm)
10.94"
(277.88mm)
-0.72"
(-18.29mm)
47th Driest Driest since: 2002 1934
79th Wettest Wettest since: 2001 2013
Dec 2002–May 2003
6-Month
10.46"
(265.68mm)
12.04"
(305.82mm)
-1.58"
(-40.14mm)
29th Driest Driest since: 2000 1934
96th Wettest Wettest since: 2002 2013
Ties: 1967
Nov 2002–May 2003
7-Month
10.68"
(271.27mm)
13.78"
(350.01mm)
-3.10"
(-78.74mm)
20th Driest Driest since: 2000 1934
105th Wettest Wettest since: 2002 2013
Oct 2002–May 2003
8-Month
14.26"
(362.20mm)
16.10"
(408.94mm)
-1.84"
(-46.74mm)
31st Driest Driest since: 2000 1934
94th Wettest Wettest since: 2002 2019
Ties: 1964
Sep 2002–May 2003
9-Month
15.97"
(405.64mm)
19.79"
(502.67mm)
-3.82"
(-97.03mm)
21st Driest Driest since: 2000 1934
104th Wettest Wettest since: 2002 2019
Aug 2002–May 2003
10-Month
21.78"
(553.21mm)
23.65"
(600.71mm)
-1.87"
(-47.50mm)
38th Driest Driest since: 2000 1934
87th Wettest Wettest since: 2002 2019
Jul 2002–May 2003
11-Month
26.02"
(660.91mm)
27.54"
(699.52mm)
-1.52"
(-38.61mm)
45th Driest Driest since: 2002 1934
80th Wettest Wettest since: 2001 2019
Jun 2002–May 2003
12-Month
29.53"
(750.06mm)
32.14"
(816.36mm)
-2.61"
(-66.30mm)
34th Driest Driest since: 2002 1934
91st Wettest Wettest since: 2001 2019
Ties: 1968
Dec 2001–May 2003
18-Month
40.53"
(1,029.46mm)
44.20"
(1,122.68mm)
-3.67"
(-93.22mm)
33rd Driest Driest since: 1990 1934
91st Wettest Wettest since: 2002 2019
Ties: 1907
Jun 2001–May 2003
24-Month
58.77"
(1,492.76mm)
64.29"
(1,632.97mm)
-5.52"
(-140.21mm)
28th Driest Driest since: 1990 1957
96th Wettest Wettest since: 2002 2011
Jun 2000–May 2003
36-Month
95.29"
(2,420.37mm)
96.33"
(2,446.78mm)
-1.04"
(-26.41mm)
55th Driest Driest since: 2002 1958
68th Wettest Wettest since: 2001 2011
Jun 1999–May 2003
48-Month
121.97"
(3,098.04mm)
128.31"
(3,259.07mm)
-6.34"
(-161.03mm)
28th Driest Driest since: 1990 1957
94th Wettest Wettest since: 2002 2011
Jun 1998–May 2003
60-Month
161.30"
(4,097.02mm)
160.32"
(4,072.13mm)
0.98"
(24.89mm)
66th Driest Driest since: 2000 1958
55th Wettest Wettest since: 2002 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published December 2019, retrieved on December 12, 2019 from https://www.ncdc.noaa.gov/cag/