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 1931

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 1931
1-Month
4.29"
(108.97mm)
3.73"
(94.74mm)
0.56"
(14.23mm)
81st Driest
Driest since:
1964
48th Wettest
Wettest since:
2018
Ties: 1974
Apr–May 1931
2-Month
7.27"
(184.66mm)
7.21"
(183.13mm)
0.06"
(1.53mm)
64th Driest
Driest since:
1963
65th Wettest
Wettest since:
1983
Mar–May 1931
3-Month
11.62"
(295.15mm)
10.99"
(279.15mm)
0.63"
(16.00mm)
84th Driest
Driest since:
1986
45th Wettest
Wettest since:
1983
Feb–May 1931
4-Month
13.26"
(336.80mm)
13.88"
(352.55mm)
-0.62"
(-15.75mm)
50th Driest
Driest since:
2006
79th Wettest
Wettest since:
1983
Jan–May 1931
5-Month
14.98"
(380.49mm)
17.23"
(437.64mm)
-2.25"
(-57.15mm)
30th Driest
Driest since:
1969
99th Wettest
Wettest since:
1998
Ties: 1914
Dec 1930–May 1931
6-Month
17.49"
(444.25mm)
20.52"
(521.21mm)
-3.03"
(-76.96mm)
27th Driest
Driest since:
1986
101st Wettest
Wettest since:
1984
Nov 1930–May 1931
7-Month
18.71"
(475.23mm)
23.51"
(597.15mm)
-4.80"
(-121.92mm)
15th Driest
Driest since:
1977
113th Wettest
Wettest since:
1998
Oct 1930–May 1931
8-Month
19.64"
(498.86mm)
26.64"
(676.66mm)
-7.00"
(-177.80mm)
3rd Driest
Driest since:
1925
125th Wettest
Wettest since:
1984
Sep 1930–May 1931
9-Month
21.00"
(533.40mm)
30.19"
(766.83mm)
-9.19"
(-233.43mm)
2nd Driest
Driest since:
2002
126th Wettest
Wettest since:
2019
Aug 1930–May 1931
10-Month
22.00"
(558.80mm)
34.56"
(877.82mm)
-12.56"
(-319.02mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Jul 1930–May 1931
11-Month
23.58"
(598.93mm)
38.72"
(983.49mm)
-15.14"
(-384.56mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Jun 1930–May 1931
12-Month
26.72"
(678.69mm)
42.56"
(1,081.02mm)
-15.84"
(-402.33mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Dec 1929–May 1931
18-Month
40.64"
(1,032.26mm)
63.04"
(1,601.22mm)
-22.40"
(-568.96mm)
1st Driest
Driest since:
1931
126th Wettest
Wettest since:
2019
Jun 1929–May 1931
24-Month
61.19"
(1,554.23mm)
85.05"
(2,160.27mm)
-23.86"
(-606.04mm)
1st Driest
Driest since:
1931
126th Wettest
Wettest since:
2019
Jun 1928–May 1931
36-Month
108.28"
(2,750.31mm)
127.65"
(3,242.31mm)
-19.37"
(-492.00mm)
4th Driest
Driest since:
1967
122nd Wettest
Wettest since:
2021
Jun 1927–May 1931
48-Month
149.64"
(3,800.86mm)
170.18"
(4,322.57mm)
-20.54"
(-521.71mm)
6th Driest
Driest since:
1966
119th Wettest
Wettest since:
2021
Jun 1926–May 1931
60-Month
194.86"
(4,949.44mm)
212.57"
(5,399.28mm)
-17.71"
(-449.84mm)
7th Driest
Driest since:
1969
117th Wettest
Wettest since:
2022

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