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.


Maryland

Precipitation Rankings, May 1978

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1978
1-Month
6.02"
(152.91mm)
3.73"
(94.74mm)
2.29"
(58.17mm)
116th Driest Driest since: 1977 1964
10th Wettest Wettest since: 1971 2018
Apr–May 1978
2-Month
8.29"
(210.57mm)
7.21"
(183.13mm)
1.08"
(27.44mm)
89th Driest Driest since: 1977 1963
37th Wettest Wettest since: 1973 1983
Mar–May 1978
3-Month
13.01"
(330.45mm)
10.99"
(279.15mm)
2.02"
(51.30mm)
99th Driest Driest since: 1977 1986
27th Wettest Wettest since: 1958 1983
Ties: 2011
Feb–May 1978
4-Month
13.91"
(353.31mm)
13.88"
(352.55mm)
0.03"
(0.76mm)
68th Driest Driest since: 1977 2006
58th Wettest Wettest since: 1975 1983
Jan–May 1978
5-Month
21.01"
(533.65mm)
17.23"
(437.64mm)
3.78"
(96.01mm)
110th Driest Driest since: 1977 1969
16th Wettest Wettest since: 1958 1998
Dec 1977–May 1978
6-Month
26.72"
(678.69mm)
20.52"
(521.21mm)
6.20"
(157.48mm)
116th Driest Driest since: 1977 1986
9th Wettest Wettest since: 1958 1984
Nov 1977–May 1978
7-Month
31.73"
(805.94mm)
23.51"
(597.15mm)
8.22"
(208.79mm)
120th Driest Driest since: 1977 1977
5th Wettest Wettest since: 1953 1998
Oct 1977–May 1978
8-Month
36.26"
(921.00mm)
26.64"
(676.66mm)
9.62"
(244.34mm)
121st Driest Driest since: 1977 1925
4th Wettest Wettest to Date 1984
Sep 1977–May 1978
9-Month
38.63"
(981.20mm)
30.19"
(766.83mm)
8.44"
(214.37mm)
117th Driest Driest since: 1977 2002
8th Wettest Wettest since: 1958 2019
Aug 1977–May 1978
10-Month
42.28"
(1,073.91mm)
34.56"
(877.82mm)
7.72"
(196.09mm)
112th Driest Driest since: 1977 1931
13th Wettest Wettest since: 1972 2019
Jul 1977–May 1978
11-Month
45.47"
(1,154.94mm)
38.72"
(983.49mm)
6.75"
(171.45mm)
109th Driest Driest since: 1977 1931
16th Wettest Wettest since: 1972 2019
Jun 1977–May 1978
12-Month
49.12"
(1,247.65mm)
42.56"
(1,081.02mm)
6.56"
(166.63mm)
106th Driest Driest since: 1977 1931
19th Wettest Wettest since: 1973 2019
Dec 1976–May 1978
18-Month
62.92"
(1,598.17mm)
63.04"
(1,601.22mm)
-0.12"
(-3.05mm)
56th Driest Driest since: 1977 1931
68th Wettest Wettest since: 1976 2019
Jun 1976–May 1978
24-Month
86.72"
(2,202.69mm)
85.05"
(2,160.27mm)
1.67"
(42.42mm)
67th Driest Driest since: 1977 1931
57th Wettest Wettest since: 1976 2019
Jun 1975–May 1978
36-Month
135.24"
(3,435.10mm)
127.65"
(3,242.31mm)
7.59"
(192.79mm)
93rd Driest Driest since: 1977 1967
30th Wettest Wettest since: 1975 2005
Jun 1974–May 1978
48-Month
178.88"
(4,543.55mm)
170.18"
(4,322.57mm)
8.70"
(220.98mm)
86th Driest Driest since: 1977 1966
36th Wettest Wettest since: 1976 2019
Jun 1973–May 1978
60-Month
220.34"
(5,596.64mm)
212.57"
(5,399.28mm)
7.77"
(197.36mm)
82nd Driest Driest since: 1972 1969
39th Wettest Wettest since: 1977 1976

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/