Climate at a Glance

Regional 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 July 2020. For more information, please see Climatological Rankings.


Ohio Valley Climate Region

Precipitation Rankings, May 1978

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
May 1978
1-Month
4.93"
(125.22mm)
4.27"
(108.46mm)
0.66"
(16.76mm)
86th Driest Driest since: 1977 1934
41st Wettest Wettest since: 1974 1995
Ties: 1910
Apr–May 1978
2-Month
8.50"
(215.90mm)
8.18"
(207.77mm)
0.32"
(8.13mm)
76th Driest Driest since: 1977 1934
51st Wettest Wettest since: 1974 2011
Mar–May 1978
3-Month
12.02"
(305.31mm)
11.99"
(304.55mm)
0.03"
(0.76mm)
61st Driest Driest since: 1977 1941
66th Wettest Wettest since: 1975 2011
Ties: 2016
Feb–May 1978
4-Month
12.93"
(328.42mm)
14.67"
(372.62mm)
-1.74"
(-44.20mm)
35th Driest Driest since: 1976 1941
92nd Wettest Wettest since: 1977 2011
Jan–May 1978
5-Month
16.30"
(414.02mm)
17.71"
(449.83mm)
-1.41"
(-35.81mm)
39th Driest Driest since: 1977 1941
88th Wettest Wettest since: 1975 2019
Dec 1977–May 1978
6-Month
19.45"
(494.03mm)
20.80"
(528.32mm)
-1.35"
(-34.29mm)
39th Driest Driest since: 1977 1941
87th Wettest Wettest since: 1975 2019
Ties: 1915
Nov 1977–May 1978
7-Month
23.27"
(591.06mm)
23.95"
(608.33mm)
-0.68"
(-17.27mm)
50th Driest Driest since: 1977 1934
76th Wettest Wettest since: 1975 2019
Oct 1977–May 1978
8-Month
27.20"
(690.88mm)
26.86"
(682.24mm)
0.34"
(8.64mm)
62nd Driest Driest since: 1977 1934
64th Wettest Wettest since: 1975 2019
Ties: 1939
Sep 1977–May 1978
9-Month
32.33"
(821.18mm)
30.32"
(770.13mm)
2.01"
(51.05mm)
83rd Driest Driest since: 1977 1941
43rd Wettest Wettest since: 1975 1927
Aug 1977–May 1978
10-Month
38.11"
(967.99mm)
33.99"
(863.35mm)
4.12"
(104.64mm)
97th Driest Driest since: 1977 1954
29th Wettest Wettest since: 1975 1927
Jul 1977–May 1978
11-Month
41.83"
(1,062.48mm)
37.99"
(964.95mm)
3.84"
(97.53mm)
92nd Driest Driest since: 1977 1941
34th Wettest Wettest since: 1975 1927
Jun 1977–May 1978
12-Month
46.47"
(1,180.34mm)
42.24"
(1,072.90mm)
4.23"
(107.44mm)
93rd Driest Driest since: 1977 1931
33rd Wettest Wettest since: 1975 2019
Dec 1976–May 1978
18-Month
62.27"
(1,581.66mm)
63.02"
(1,600.71mm)
-0.75"
(-19.05mm)
52nd Driest Driest since: 1977 1931
73rd Wettest Wettest since: 1976 2020
Jun 1976–May 1978
24-Month
80.88"
(2,054.35mm)
84.48"
(2,145.79mm)
-3.60"
(-91.44mm)
33rd Driest Driest since: 1977 1941
92nd Wettest Wettest since: 1976 2020
Jun 1975–May 1978
36-Month
121.91"
(3,096.51mm)
126.72"
(3,218.69mm)
-4.81"
(-122.18mm)
26th Driest Driest since: 1967 1955
98th Wettest Wettest since: 1977 2020
Jun 1974–May 1978
48-Month
169.14"
(4,296.16mm)
168.95"
(4,291.33mm)
0.19"
(4.83mm)
57th Driest Driest since: 1972 1956
66th Wettest Wettest since: 1977 2020
Jun 1973–May 1978
60-Month
219.25"
(5,568.95mm)
211.18"
(5,363.97mm)
8.07"
(204.98mm)
86th Driest Driest since: 1973 1957
36th Wettest Wettest since: 1977 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published August 2020, retrieved on August 6, 2020 from https://www.ncdc.noaa.gov/cag/