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


South Dakota

Precipitation Rankings, May 1978

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1978
1-Month
3.62"
(91.95mm)
2.92"
(74.17mm)
0.70"
(17.78mm)
94th Driest Driest since: 1977 1940
32nd Wettest Wettest since: 1972 1962
Apr–May 1978
2-Month
6.67"
(169.42mm)
4.87"
(123.70mm)
1.80"
(45.72mm)
108th Driest Driest since: 1977 1934
18th Wettest Wettest since: 1972 1927
Mar–May 1978
3-Month
7.00"
(177.80mm)
5.92"
(150.37mm)
1.08"
(27.43mm)
91st Driest Driest since: 1976 1934
35th Wettest Wettest since: 1977 1942
Feb–May 1978
4-Month
7.77"
(197.36mm)
6.46"
(164.08mm)
1.31"
(33.28mm)
97th Driest Driest since: 1976 1934
29th Wettest Wettest since: 1977 1942
Jan–May 1978
5-Month
8.03"
(203.96mm)
6.93"
(176.02mm)
1.10"
(27.94mm)
88th Driest Driest since: 1976 1934
38th Wettest Wettest since: 1977 2019
Dec 1977–May 1978
6-Month
8.84"
(224.54mm)
7.41"
(188.21mm)
1.43"
(36.33mm)
93rd Driest Driest since: 1976 1934
32nd Wettest Wettest since: 1977 2019
Nov 1977–May 1978
7-Month
10.45"
(265.43mm)
8.06"
(204.72mm)
2.39"
(60.71mm)
109th Driest Driest since: 1977 1934
16th Wettest Wettest since: 1972 2019
Ties: 1997
Oct 1977–May 1978
8-Month
12.42"
(315.47mm)
9.34"
(237.24mm)
3.08"
(78.23mm)
112th Driest Driest since: 1977 1934
13th Wettest Wettest since: 1972 1995
Sep 1977–May 1978
9-Month
15.69"
(398.53mm)
10.97"
(278.64mm)
4.72"
(119.89mm)
117th Driest Driest since: 1977 1934
8th Wettest Wettest since: 1972 2019
Aug 1977–May 1978
10-Month
18.49"
(469.65mm)
13.13"
(333.50mm)
5.36"
(136.15mm)
118th Driest Driest since: 1977 1934
7th Wettest Wettest since: 1942 2019
Jul 1977–May 1978
11-Month
21.07"
(535.18mm)
15.68"
(398.27mm)
5.39"
(136.91mm)
116th Driest Driest since: 1977 1934
9th Wettest Wettest since: 1927 2019
Jun 1977–May 1978
12-Month
23.91"
(607.31mm)
19.11"
(485.39mm)
4.80"
(121.92mm)
115th Driest Driest since: 1977 1934
10th Wettest Wettest since: 1942 2019
Dec 1976–May 1978
18-Month
33.36"
(847.34mm)
26.49"
(672.85mm)
6.87"
(174.49mm)
117th Driest Driest since: 1977 1934
7th Wettest Wettest since: 1916 1916
Jun 1976–May 1978
24-Month
40.48"
(1,028.19mm)
38.16"
(969.26mm)
2.32"
(58.93mm)
80th Driest Driest since: 1977 1937
44th Wettest Wettest since: 1973 2011
Jun 1975–May 1978
36-Month
56.11"
(1,425.19mm)
57.11"
(1,450.59mm)
-1.00"
(-25.40mm)
46th Driest Driest since: 1977 1936
77th Wettest Wettest since: 1974 2011
Jun 1974–May 1978
48-Month
70.89"
(1,800.61mm)
76.05"
(1,931.67mm)
-5.16"
(-131.06mm)
25th Driest Driest since: 1977 1937
97th Wettest Wettest since: 1975 2011
Jun 1973–May 1978
60-Month
88.24"
(2,241.30mm)
94.95"
(2,411.73mm)
-6.71"
(-170.43mm)
15th Driest Driest since: 1977 1937
106th Wettest Wettest since: 1976 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 15, 2019 from https://www.ncdc.noaa.gov/cag/