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


Iowa

Precipitation Rankings, December 2015

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
December 2015
1-Month
4.71"
(119.63mm)
1.11"
(28.19mm)
3.60"
(91.44mm)
125th Driest Driest since: 2014 2002
1st Wettest Wettest to Date 2015
Nov–Dec 2015
2-Month
8.79"
(223.27mm)
2.87"
(72.90mm)
5.92"
(150.37mm)
125th Driest Driest since: 2014 1976
1st Wettest Wettest to Date 2015
Oct–Dec 2015
3-Month
10.55"
(267.97mm)
5.16"
(131.06mm)
5.39"
(136.91mm)
124th Driest Driest since: 2014 1910
2nd Wettest Wettest since: 1931 1931
Sep–Dec 2015
4-Month
14.73"
(374.14mm)
8.83"
(224.28mm)
5.90"
(149.86mm)
122nd Driest Driest since: 2014 1939, 1976
4th Wettest Wettest since: 1941 1931
Aug–Dec 2015
5-Month
20.02"
(508.51mm)
12.67"
(321.82mm)
7.35"
(186.69mm)
122nd Driest Driest since: 2014 1976
4th Wettest Wettest since: 2007 2018
Jul–Dec 2015
6-Month
25.53"
(648.46mm)
16.52"
(419.61mm)
9.01"
(228.85mm)
122nd Driest Driest since: 2014 1976
4th Wettest Wettest since: 1993 2018
Jun–Dec 2015
7-Month
31.91"
(810.51mm)
21.15"
(537.21mm)
10.76"
(273.30mm)
121st Driest Driest since: 2014 1976
5th Wettest Wettest since: 2010 2018
May–Dec 2015
8-Month
36.97"
(939.04mm)
25.20"
(640.08mm)
11.77"
(298.96mm)
122nd Driest Driest since: 2014 1976
4th Wettest Wettest since: 1993 1993
Apr–Dec 2015
9-Month
40.34"
(1,024.64mm)
28.15"
(715.01mm)
12.19"
(309.63mm)
123rd Driest Driest since: 2014 1910
3rd Wettest Wettest since: 1993 1993
Mar–Dec 2015
10-Month
40.90"
(1,038.86mm)
30.10"
(764.54mm)
10.80"
(274.32mm)
121st Driest Driest since: 2014 1910
5th Wettest Wettest since: 2010 1993
Feb–Dec 2015
11-Month
42.01"
(1,067.05mm)
31.12"
(790.45mm)
10.89"
(276.60mm)
120th Driest Driest since: 2014 1910
6th Wettest Wettest since: 2010 1993
Jan–Dec 2015
12-Month
42.53"
(1,080.26mm)
32.09"
(815.09mm)
10.44"
(265.17mm)
119th Driest Driest since: 2014 1910
7th Wettest Wettest since: 2010 1993
Jul 2014–Dec 2015
18-Month
61.13"
(1,552.70mm)
48.69"
(1,236.73mm)
12.44"
(315.97mm)
117th Driest Driest since: 2014 1956
8th Wettest Wettest since: 2010 1993
Jan 2014–Dec 2015
24-Month
81.22"
(2,062.99mm)
64.24"
(1,631.70mm)
16.98"
(431.29mm)
119th Driest Driest since: 2014 1989
6th Wettest Wettest since: 2010 2019
Jan 2013–Dec 2015
36-Month
115.66"
(2,937.76mm)
96.36"
(2,447.54mm)
19.30"
(490.22mm)
117th Driest Driest since: 2014 1957
7th Wettest Wettest since: 2010 2010
Jan 2012–Dec 2015
48-Month
141.27"
(3,588.26mm)
128.37"
(3,260.60mm)
12.90"
(327.66mm)
103rd Driest Driest since: 2014 1958
20th Wettest Wettest since: 2011 2010
Jan 2011–Dec 2015
60-Month
173.10"
(4,396.74mm)
160.36"
(4,073.14mm)
12.74"
(323.60mm)
97th Driest Driest since: 2007 1956
25th Wettest Wettest since: 2014 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 17, 2020 from https://www.ncdc.noaa.gov/cag/