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 1991

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 1991
1-Month
1.78"
(45.21mm)
3.73"
(94.74mm)
-1.95"
(-49.53mm)
8th Driest Driest since: 1986 1964
118th Wettest Wettest since: 1990 2018
Apr–May 1991
2-Month
4.25"
(107.95mm)
7.21"
(183.13mm)
-2.96"
(-75.18mm)
5th Driest Driest since: 1986 1963
121st Wettest Wettest since: 1990 1983
Mar–May 1991
3-Month
9.05"
(229.87mm)
10.99"
(279.15mm)
-1.94"
(-49.28mm)
26th Driest Driest since: 1986 1986
100th Wettest Wettest since: 1990 1983
Ties: 1902
Feb–May 1991
4-Month
10.34"
(262.64mm)
13.88"
(352.55mm)
-3.54"
(-89.91mm)
12th Driest Driest since: 1986 2006
114th Wettest Wettest since: 1990 1983
Jan–May 1991
5-Month
14.05"
(356.87mm)
17.23"
(437.64mm)
-3.18"
(-80.77mm)
18th Driest Driest since: 1986 1969
108th Wettest Wettest since: 1990 1998
Dec 1990–May 1991
6-Month
18.96"
(481.58mm)
20.52"
(521.21mm)
-1.56"
(-39.63mm)
39th Driest Driest since: 1986 1986
86th Wettest Wettest since: 1990 1984
Nov 1990–May 1991
7-Month
20.95"
(532.13mm)
23.51"
(597.15mm)
-2.56"
(-65.02mm)
35th Driest Driest since: 1986 1977
90th Wettest Wettest since: 1990 1998
Oct 1990–May 1991
8-Month
25.26"
(641.60mm)
26.64"
(676.66mm)
-1.38"
(-35.06mm)
52nd Driest Driest since: 1986 1925
73rd Wettest Wettest since: 1990 1984
Sep 1990–May 1991
9-Month
27.28"
(692.91mm)
30.19"
(766.83mm)
-2.91"
(-73.92mm)
38th Driest Driest since: 1986 2002
87th Wettest Wettest since: 1990 2019
Aug 1990–May 1991
10-Month
33.23"
(844.04mm)
34.56"
(877.82mm)
-1.33"
(-33.78mm)
50th Driest Driest since: 1986 1931
75th Wettest Wettest since: 1990 2019
Jul 1990–May 1991
11-Month
38.05"
(966.47mm)
38.72"
(983.49mm)
-0.67"
(-17.02mm)
55th Driest Driest since: 1988 1931
70th Wettest Wettest since: 1990 2019
Jun 1990–May 1991
12-Month
40.75"
(1,035.05mm)
42.56"
(1,081.02mm)
-1.81"
(-45.97mm)
46th Driest Driest since: 1988 1931
79th Wettest Wettest since: 1990 2019
Dec 1989–May 1991
18-Month
61.89"
(1,572.01mm)
63.04"
(1,601.22mm)
-1.15"
(-29.21mm)
51st Driest Driest since: 1988 1931
73rd Wettest Wettest since: 1990 2019
Jun 1989–May 1991
24-Month
89.62"
(2,276.35mm)
85.05"
(2,160.27mm)
4.57"
(116.08mm)
85th Driest Driest since: 1989 1931
39th Wettest Wettest since: 1990 2019
Jun 1988–May 1991
36-Month
131.94"
(3,351.28mm)
127.65"
(3,242.31mm)
4.29"
(108.97mm)
76th Driest Driest since: 1990 1967
47th Wettest Wettest since: 1985 2005
Jun 1987–May 1991
48-Month
171.88"
(4,365.75mm)
170.18"
(4,322.57mm)
1.70"
(43.18mm)
62nd Driest Driest since: 1990 1966
60th Wettest Wettest since: 1986 2019
Jun 1986–May 1991
60-Month
212.56"
(5,399.02mm)
212.57"
(5,399.28mm)
-0.01"
(-0.26mm)
55th Driest Driest since: 1990 1969
66th Wettest Wettest since: 1987 1976

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 17, 2019 from https://www.ncdc.noaa.gov/cag/