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 2019. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, July 2009

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
July 2009
1-Month
4.62"
(117.35mm)
3.86"
(98.04mm)
0.76"
(19.31mm)
95th Driest Driest since: 2007 1936
31st Wettest Wettest since: 2008 1993
Jun–Jul 2009
2-Month
9.91"
(251.71mm)
8.49"
(215.65mm)
1.42"
(36.06mm)
95th Driest Driest since: 2007 1936
31st Wettest Wettest since: 2008 1993
May–Jul 2009
3-Month
13.55"
(344.17mm)
12.53"
(318.26mm)
1.02"
(25.91mm)
79th Driest Driest since: 2007 1988
47th Wettest Wettest since: 2008 1993
Apr–Jul 2009
4-Month
17.15"
(435.61mm)
15.48"
(393.19mm)
1.67"
(42.42mm)
83rd Driest Driest since: 2007 1936
43rd Wettest Wettest since: 2008 1993
Ties: 1905
Mar–Jul 2009
5-Month
20.12"
(511.05mm)
17.43"
(442.72mm)
2.69"
(68.33mm)
96th Driest Driest since: 2007 1936
30th Wettest Wettest since: 2008 1993
Feb–Jul 2009
6-Month
20.91"
(531.11mm)
18.45"
(468.63mm)
2.46"
(62.48mm)
91st Driest Driest since: 2006 1988
35th Wettest Wettest since: 2008 1993
Jan–Jul 2009
7-Month
21.59"
(548.39mm)
19.43"
(493.52mm)
2.16"
(54.87mm)
88th Driest Driest since: 2006 1988
38th Wettest Wettest since: 2008 1993
Dec 2008–Jul 2009
8-Month
23.47"
(596.14mm)
20.53"
(521.46mm)
2.94"
(74.68mm)
93rd Driest Driest since: 2006 1988
32nd Wettest Wettest since: 2008 1993
Nov 2008–Jul 2009
9-Month
25.19"
(639.83mm)
22.27"
(565.66mm)
2.92"
(74.17mm)
90th Driest Driest since: 2006 1934
35th Wettest Wettest since: 2008 1993
Oct 2008–Jul 2009
10-Month
28.45"
(722.63mm)
24.58"
(624.33mm)
3.87"
(98.30mm)
98th Driest Driest since: 2007 1934
27th Wettest Wettest since: 2008 1993
Sep 2008–Jul 2009
11-Month
32.61"
(828.29mm)
28.28"
(718.31mm)
4.33"
(109.98mm)
102nd Driest Driest since: 2007 1988
23rd Wettest Wettest since: 2008 1993
Aug 2008–Jul 2009
12-Month
34.57"
(878.08mm)
32.14"
(816.36mm)
2.43"
(61.72mm)
86th Driest Driest since: 2006 1956
39th Wettest Wettest since: 2008 2008
Feb 2008–Jul 2009
18-Month
63.83"
(1,621.28mm)
50.60"
(1,285.24mm)
13.23"
(336.04mm)
118th Driest Driest since: 2007 1911
7th Wettest Wettest since: 2008 2008
Aug 2007–Jul 2009
24-Month
84.79"
(2,153.67mm)
64.31"
(1,633.47mm)
20.48"
(520.20mm)
122nd Driest Driest since: 2007 1934
2nd Wettest Wettest since: 2008 2008
Aug 2006–Jul 2009
36-Month
122.39"
(3,108.71mm)
96.40"
(2,448.56mm)
25.99"
(660.15mm)
121st Driest Driest since: 2008 1956
2nd Wettest Wettest to Date 2010
Aug 2005–Jul 2009
48-Month
149.46"
(3,796.28mm)
128.38"
(3,260.85mm)
21.08"
(535.43mm)
114th Driest Driest since: 2008 1957
8th Wettest Wettest since: 1995 2010
Aug 2004–Jul 2009
60-Month
181.22"
(4,602.99mm)
160.37"
(4,073.40mm)
20.85"
(529.59mm)
109th Driest Driest since: 2008 1957
12th Wettest Wettest since: 1996 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 22, 2019 from https://www.ncdc.noaa.gov/cag/