Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Maryland

Precipitation Rankings, May 1988

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1988
1-Month
5.71"
(145.03mm)
3.73"
(94.74mm)
1.98"
(50.29mm)
112th Driest
Driest since:
1964
17th Wettest
Wettest since:
2018
Apr–May 1988
2-Month
8.57"
(217.68mm)
7.21"
(183.13mm)
1.36"
(34.55mm)
97th Driest
Driest since:
1963
32nd Wettest
Wettest since:
1983
Mar–May 1988
3-Month
11.08"
(281.43mm)
10.99"
(279.15mm)
0.09"
(2.28mm)
71st Driest
Driest since:
1986
58th Wettest
Wettest since:
1983
Feb–May 1988
4-Month
14.37"
(365.00mm)
13.88"
(352.55mm)
0.49"
(12.45mm)
82nd Driest
Driest since:
2006
47th Wettest
Wettest since:
1983
Jan–May 1988
5-Month
17.42"
(442.47mm)
17.23"
(437.64mm)
0.19"
(4.83mm)
77th Driest
Driest since:
1969
52nd Wettest
Wettest since:
1998
Dec 1987–May 1988
6-Month
20.13"
(511.30mm)
20.52"
(521.21mm)
-0.39"
(-9.91mm)
61st Driest
Driest since:
1986
67th Wettest
Wettest since:
1984
Nov 1987–May 1988
7-Month
23.93"
(607.82mm)
23.51"
(597.15mm)
0.42"
(10.67mm)
77th Driest
Driest since:
1977
51st Wettest
Wettest since:
1998
Oct 1987–May 1988
8-Month
26.23"
(666.24mm)
26.64"
(676.66mm)
-0.41"
(-10.42mm)
68th Driest
Driest since:
1925
60th Wettest
Wettest since:
1984
Ties: 1938
Sep 1987–May 1988
9-Month
32.14"
(816.36mm)
30.19"
(766.83mm)
1.95"
(49.53mm)
86th Driest
Driest since:
2002
42nd Wettest
Wettest since:
2019
Ties: 1943
Aug 1987–May 1988
10-Month
33.77"
(857.76mm)
34.56"
(877.82mm)
-0.79"
(-20.06mm)
54th Driest
Driest since:
1931
74th Wettest
Wettest since:
2019
Jul 1987–May 1988
11-Month
36.81"
(934.97mm)
38.72"
(983.49mm)
-1.91"
(-48.52mm)
48th Driest
Driest since:
1931
80th Wettest
Wettest since:
2019
Jun 1987–May 1988
12-Month
39.94"
(1,014.48mm)
42.56"
(1,081.02mm)
-2.62"
(-66.54mm)
41st Driest
Driest since:
1931
87th Wettest
Wettest since:
2019
Dec 1986–May 1988
18-Month
61.68"
(1,566.67mm)
63.04"
(1,601.22mm)
-1.36"
(-34.55mm)
49th Driest
Driest since:
1931
78th Wettest
Wettest since:
2019
Jun 1986–May 1988
24-Month
80.62"
(2,047.75mm)
85.05"
(2,160.27mm)
-4.43"
(-112.52mm)
34th Driest
Driest since:
1931
93rd Wettest
Wettest since:
2019
Jun 1985–May 1988
36-Month
119.54"
(3,036.32mm)
127.65"
(3,242.31mm)
-8.11"
(-205.99mm)
20th Driest
Driest since:
1967
106th Wettest
Wettest since:
2021
Jun 1984–May 1988
48-Month
155.68"
(3,954.27mm)
170.18"
(4,322.57mm)
-14.50"
(-368.30mm)
11th Driest
Driest since:
1966
114th Wettest
Wettest since:
2021
Jun 1983–May 1988
60-Month
206.35"
(5,241.29mm)
212.57"
(5,399.28mm)
-6.22"
(-157.99mm)
33rd Driest
Driest since:
1969
91st Wettest
Wettest since:
2022

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