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 1940

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1940
1-Month
4.37"
(111.00mm)
3.73"
(94.74mm)
0.64"
(16.26mm)
80th Driest Driest since: 1939 1964
46th Wettest Wettest since: 1934 2018
Apr–May 1940
2-Month
10.35"
(262.89mm)
7.21"
(183.13mm)
3.14"
(79.76mm)
115th Driest Driest since: 1939 1963
11th Wettest Wettest since: 1933 1983
Mar–May 1940
3-Month
14.21"
(360.93mm)
10.99"
(279.15mm)
3.22"
(81.78mm)
113th Driest Driest since: 1939 1986
13th Wettest Wettest since: 1933 1983
Ties: 1994
Feb–May 1940
4-Month
17.20"
(436.88mm)
13.88"
(352.55mm)
3.32"
(84.33mm)
109th Driest Driest since: 1939 2006
17th Wettest Wettest since: 1933 1983
Jan–May 1940
5-Month
19.64"
(498.86mm)
17.23"
(437.64mm)
2.41"
(61.22mm)
99th Driest Driest since: 1939 1969
27th Wettest Wettest since: 1937 1998
Dec 1939–May 1940
6-Month
21.60"
(548.64mm)
20.52"
(521.21mm)
1.08"
(27.43mm)
84th Driest Driest since: 1938 1986
41st Wettest Wettest since: 1939 1984
Nov 1939–May 1940
7-Month
23.04"
(585.22mm)
23.51"
(597.15mm)
-0.47"
(-11.93mm)
66th Driest Driest since: 1938 1977
59th Wettest Wettest since: 1939 1998
Oct 1939–May 1940
8-Month
27.99"
(710.95mm)
26.64"
(676.66mm)
1.35"
(34.29mm)
86th Driest Driest since: 1939 1925
39th Wettest Wettest since: 1937 1984
Sep 1939–May 1940
9-Month
31.12"
(790.45mm)
30.19"
(766.83mm)
0.93"
(23.62mm)
74th Driest Driest since: 1938 2002
51st Wettest Wettest since: 1939 2019
Aug 1939–May 1940
10-Month
35.51"
(901.95mm)
34.56"
(877.82mm)
0.95"
(24.13mm)
73rd Driest Driest since: 1939 1931
52nd Wettest Wettest since: 1937 2019
Ties: 2007
Jul 1939–May 1940
11-Month
39.40"
(1,000.76mm)
38.72"
(983.49mm)
0.68"
(17.27mm)
66th Driest Driest since: 1938 1931
59th Wettest Wettest since: 1939 2019
Jun 1939–May 1940
12-Month
44.33"
(1,125.98mm)
42.56"
(1,081.02mm)
1.77"
(44.96mm)
69th Driest Driest since: 1938 1931
56th Wettest Wettest since: 1939 2019
Dec 1938–May 1940
18-Month
66.20"
(1,681.48mm)
63.04"
(1,601.22mm)
3.16"
(80.26mm)
85th Driest Driest since: 1939 1931
39th Wettest Wettest since: 1938 2019
Jun 1938–May 1940
24-Month
91.37"
(2,320.80mm)
85.05"
(2,160.27mm)
6.32"
(160.53mm)
96th Driest Driest since: 1939 1931
28th Wettest Wettest since: 1937 2019
Jun 1937–May 1940
36-Month
135.68"
(3,446.27mm)
127.65"
(3,242.31mm)
8.03"
(203.96mm)
97th Driest Driest since: 1933 1967
26th Wettest Wettest since: 1939 2005
Jun 1936–May 1940
48-Month
182.54"
(4,636.52mm)
170.18"
(4,322.57mm)
12.36"
(313.95mm)
101st Driest Driest since: 1934 1966
21st Wettest Wettest since: 1939 2019
Jun 1935–May 1940
60-Month
233.07"
(5,919.98mm)
212.57"
(5,399.28mm)
20.50"
(520.70mm)
110th Driest Driest since: 1938 1969
11th Wettest Wettest since: 1939 1976

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 24, 2019 from https://www.ncdc.noaa.gov/cag/