Climate at a Glance

Divisional 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 April 2022. For more information, please see Climatological Rankings.


Iowa, Climate Division 9. Southeast

Precipitation Rankings, May 1978

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 1978
1-Month
5.32"
(135.13mm)
4.04"
(102.62mm)
1.28"
(32.51mm)
93rd Driest Driest since: 1977 1992
35th Wettest Wettest since: 1974 1996
Apr–May 1978
2-Month
10.12"
(257.05mm)
7.38"
(187.45mm)
2.74"
(69.60mm)
110th Driest Driest since: 1977 1956
18th Wettest Wettest since: 1974 2013
Mar–May 1978
3-Month
11.30"
(287.02mm)
9.74"
(247.40mm)
1.56"
(39.62mm)
83rd Driest Driest since: 1977 1956
45th Wettest Wettest since: 1976 1973
Feb–May 1978
4-Month
12.24"
(310.90mm)
10.97"
(278.64mm)
1.27"
(32.26mm)
83rd Driest Driest since: 1977 1956
45th Wettest Wettest since: 1976 1973
Jan–May 1978
5-Month
12.87"
(326.90mm)
12.29"
(312.17mm)
0.58"
(14.73mm)
66th Driest Driest since: 1977 1956
62nd Wettest Wettest since: 1976 1973
Dec 1977–May 1978
6-Month
14.12"
(358.65mm)
13.78"
(350.01mm)
0.34"
(8.64mm)
60th Driest Driest since: 1977 1956
67th Wettest Wettest since: 1976 1973
Nov 1977–May 1978
7-Month
16.30"
(414.02mm)
15.90"
(403.86mm)
0.40"
(10.16mm)
67th Driest Driest since: 1977 1956
60th Wettest Wettest since: 1976 1973
Oct 1977–May 1978
8-Month
20.94"
(531.88mm)
18.53"
(470.66mm)
2.41"
(61.22mm)
90th Driest Driest since: 1977 1956
37th Wettest Wettest since: 1974 2019
Sep 1977–May 1978
9-Month
26.04"
(661.42mm)
22.45"
(570.23mm)
3.59"
(91.19mm)
98th Driest Driest since: 1977 1956
29th Wettest Wettest since: 1974 2019
Aug 1977–May 1978
10-Month
34.70"
(881.38mm)
26.20"
(665.48mm)
8.50"
(215.90mm)
117th Driest Driest since: 1977 1956
10th Wettest Wettest since: 1974 2019
Jul 1977–May 1978
11-Month
37.73"
(958.34mm)
30.18"
(766.57mm)
7.55"
(191.77mm)
111th Driest Driest since: 1977 1956
16th Wettest Wettest since: 1974 2019
Jun 1977–May 1978
12-Month
40.08"
(1,018.03mm)
34.73"
(882.14mm)
5.35"
(135.89mm)
98th Driest Driest since: 1977 1956
29th Wettest Wettest since: 1974 1903
Dec 1976–May 1978
18-Month
50.70"
(1,287.78mm)
48.55"
(1,233.17mm)
2.15"
(54.61mm)
74th Driest Driest since: 1977 1902
52nd Wettest Wettest since: 1975 1974
Jun 1976–May 1978
24-Month
65.37"
(1,660.40mm)
69.46"
(1,764.28mm)
-4.09"
(-103.88mm)
39th Driest Driest since: 1977 1957
87th Wettest Wettest since: 1976 2011
Ties: 1937
Jun 1975–May 1978
36-Month
98.34"
(2,497.84mm)
104.12"
(2,644.65mm)
-5.78"
(-146.81mm)
33rd Driest Driest since: 1977 1958
92nd Wettest Wettest since: 1976 2011
Jun 1974–May 1978
48-Month
132.05"
(3,354.07mm)
138.68"
(3,522.47mm)
-6.63"
(-168.40mm)
34th Driest Driest since: 1964 1957
90th Wettest Wettest since: 1977 2011
Jun 1973–May 1978
60-Month
177.22"
(4,501.39mm)
173.32"
(4,402.33mm)
3.90"
(99.06mm)
73rd Driest Driest since: 1972 1958
50th Wettest Wettest since: 1977 2011

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Divisional Time Series, published May 2022, retrieved on May 21, 2022 from https://www.ncdc.noaa.gov/cag/