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 1978

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
July 1978
1-Month
5.87"
(149.10mm)
3.86"
(98.04mm)
2.01"
(51.06mm)
109th Driest Driest since: 1977 1936
17th Wettest Wettest since: 1969 1993
Jun–Jul 1978
2-Month
10.12"
(257.05mm)
8.49"
(215.65mm)
1.63"
(41.40mm)
97th Driest Driest since: 1977 1936
29th Wettest Wettest since: 1969 1993
Ties: 1994
May–Jul 1978
3-Month
13.88"
(352.55mm)
12.53"
(318.26mm)
1.35"
(34.29mm)
82nd Driest Driest since: 1977 1988
44th Wettest Wettest since: 1973 1993
Apr–Jul 1978
4-Month
18.52"
(470.41mm)
15.48"
(393.19mm)
3.04"
(77.22mm)
101st Driest Driest since: 1977 1936
25th Wettest Wettest since: 1973 1993
Mar–Jul 1978
5-Month
19.23"
(488.44mm)
17.43"
(442.72mm)
1.80"
(45.72mm)
88th Driest Driest since: 1977 1936
38th Wettest Wettest since: 1973 1993
Ties: 1905
Feb–Jul 1978
6-Month
20.01"
(508.25mm)
18.45"
(468.63mm)
1.56"
(39.62mm)
82nd Driest Driest since: 1977 1988
44th Wettest Wettest since: 1973 1993
Jan–Jul 1978
7-Month
20.60"
(523.24mm)
19.43"
(493.52mm)
1.17"
(29.72mm)
79th Driest Driest since: 1977 1988
47th Wettest Wettest since: 1973 1993
Ties: 1943
Dec 1977–Jul 1978
8-Month
21.66"
(550.16mm)
20.53"
(521.46mm)
1.13"
(28.70mm)
71st Driest Driest since: 1977 1988
54th Wettest Wettest since: 1974 1993
Nov 1977–Jul 1978
9-Month
23.31"
(592.07mm)
22.27"
(565.66mm)
1.04"
(26.41mm)
71st Driest Driest since: 1977 1934
54th Wettest Wettest since: 1974 1993
Oct 1977–Jul 1978
10-Month
27.43"
(696.72mm)
24.58"
(624.33mm)
2.85"
(72.39mm)
86th Driest Driest since: 1977 1934
39th Wettest Wettest since: 1973 1993
Sep 1977–Jul 1978
11-Month
32.12"
(815.85mm)
28.28"
(718.31mm)
3.84"
(97.54mm)
97th Driest Driest since: 1977 1988
28th Wettest Wettest since: 1974 1993
Aug 1977–Jul 1978
12-Month
40.32"
(1,024.13mm)
32.14"
(816.36mm)
8.18"
(207.77mm)
117th Driest Driest since: 1977 1956
8th Wettest Wettest since: 1973 2008
Feb 1977–Jul 1978
18-Month
56.69"
(1,439.93mm)
50.60"
(1,285.24mm)
6.09"
(154.69mm)
96th Driest Driest since: 1977 1911
29th Wettest Wettest since: 1974 2008
Aug 1976–Jul 1978
24-Month
62.08"
(1,576.83mm)
64.31"
(1,633.47mm)
-2.23"
(-56.64mm)
45th Driest Driest since: 1977 1934
79th Wettest Wettest since: 1975 2008
Aug 1975–Jul 1978
36-Month
92.59"
(2,351.79mm)
96.40"
(2,448.56mm)
-3.81"
(-96.77mm)
38th Driest Driest since: 1977 1956
85th Wettest Wettest since: 1976 2010
Aug 1974–Jul 1978
48-Month
122.65"
(3,115.31mm)
128.38"
(3,260.85mm)
-5.73"
(-145.54mm)
28th Driest Driest since: 1977 1957
94th Wettest Wettest since: 1976 2010
Aug 1973–Jul 1978
60-Month
159.35"
(4,047.49mm)
160.37"
(4,073.40mm)
-1.02"
(-25.91mm)
59th Driest Driest since: 1971 1957
62nd Wettest Wettest since: 1977 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 14, 2019 from https://www.ncdc.noaa.gov/cag/