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 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
July 1999
1-Month
5.21"
(132.33mm)
3.86"
(98.04mm)
1.35"
(34.29mm)
102nd Driest Driest since: 1998 1936
24th Wettest Wettest since: 1993 1993
Ties: 1987
Jun–Jul 1999
2-Month
10.50"
(266.70mm)
8.49"
(215.65mm)
2.01"
(51.05mm)
102nd Driest Driest since: 1997 1936
24th Wettest Wettest since: 1998 1993
May–Jul 1999
3-Month
15.39"
(390.91mm)
12.53"
(318.26mm)
2.86"
(72.65mm)
102nd Driest Driest since: 1998 1988
24th Wettest Wettest since: 1996 1993
Apr–Jul 1999
4-Month
21.65"
(549.91mm)
15.48"
(393.19mm)
6.17"
(156.72mm)
119th Driest Driest since: 1998 1936
7th Wettest Wettest since: 1993 1993
Mar–Jul 1999
5-Month
22.63"
(574.80mm)
17.43"
(442.72mm)
5.20"
(132.08mm)
115th Driest Driest since: 1997 1936
11th Wettest Wettest since: 1998 1993
Feb–Jul 1999
6-Month
23.54"
(597.92mm)
18.45"
(468.63mm)
5.09"
(129.29mm)
113th Driest Driest since: 1997 1988
13th Wettest Wettest since: 1998 1993
Jan–Jul 1999
7-Month
24.83"
(630.68mm)
19.43"
(493.52mm)
5.40"
(137.16mm)
115th Driest Driest since: 1997 1988
11th Wettest Wettest since: 1998 1993
Dec 1998–Jul 1999
8-Month
25.25"
(641.35mm)
20.53"
(521.46mm)
4.72"
(119.89mm)
109th Driest Driest since: 1997 1988
16th Wettest Wettest since: 1998 1993
Nov 1998–Jul 1999
9-Month
26.86"
(682.24mm)
22.27"
(565.66mm)
4.59"
(116.58mm)
106th Driest Driest since: 1997 1934
19th Wettest Wettest since: 1998 1993
Oct 1998–Jul 1999
10-Month
31.69"
(804.93mm)
24.58"
(624.33mm)
7.11"
(180.60mm)
118th Driest Driest since: 1998 1934
7th Wettest Wettest since: 1993 1993
Sep 1998–Jul 1999
11-Month
33.75"
(857.25mm)
28.28"
(718.31mm)
5.47"
(138.94mm)
105th Driest Driest since: 1997 1988
20th Wettest Wettest since: 1998 1993
Aug 1998–Jul 1999
12-Month
38.76"
(984.50mm)
32.14"
(816.36mm)
6.62"
(168.14mm)
109th Driest Driest since: 1998 1956
16th Wettest Wettest since: 1993 2008
Feb 1998–Jul 1999
18-Month
63.35"
(1,609.09mm)
50.60"
(1,285.24mm)
12.75"
(323.85mm)
116th Driest Driest since: 1998 1911
9th Wettest Wettest since: 1994 2008
Aug 1997–Jul 1999
24-Month
75.66"
(1,921.76mm)
64.31"
(1,633.47mm)
11.35"
(288.29mm)
109th Driest Driest since: 1998 1934
15th Wettest Wettest since: 1994 2008
Aug 1996–Jul 1999
36-Month
106.54"
(2,706.12mm)
96.40"
(2,448.56mm)
10.14"
(257.56mm)
100th Driest Driest since: 1998 1956
23rd Wettest Wettest since: 1995 2010
Aug 1995–Jul 1999
48-Month
137.85"
(3,501.39mm)
128.38"
(3,260.85mm)
9.47"
(240.54mm)
95th Driest Driest since: 1998 1957
27th Wettest Wettest since: 1996 2010
Aug 1994–Jul 1999
60-Month
172.06"
(4,370.32mm)
160.37"
(4,073.40mm)
11.69"
(296.92mm)
93rd Driest Driest since: 1998 1957
28th Wettest Wettest since: 1997 2011

Citing This Page

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