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, April 1975

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1975
1-Month
3.15"
(80.01mm)
3.48"
(88.39mm)
-0.33"
(-8.38mm)
61st Driest
Driest since:
1985
68th Wettest
Wettest since:
1983
Ties: 1921
Mar–Apr 1975
2-Month
8.48"
(215.39mm)
7.26"
(184.40mm)
1.22"
(30.99mm)
99th Driest
Driest since:
1915
30th Wettest
Wettest since:
1983
Feb–Apr 1975
3-Month
11.19"
(284.23mm)
10.15"
(257.81mm)
1.04"
(26.42mm)
91st Driest
Driest since:
2006
38th Wettest
Wettest since:
1983
Ties: 1896
Jan–Apr 1975
4-Month
15.31"
(388.87mm)
13.51"
(343.15mm)
1.80"
(45.72mm)
102nd Driest
Driest since:
1985
27th Wettest
Wettest since:
1998
Ties: 1999
Dec 1974–Apr 1975
5-Month
20.47"
(519.94mm)
16.79"
(426.47mm)
3.68"
(93.47mm)
111th Driest
Driest since:
1985
17th Wettest
Wettest since:
1937
Nov 1974–Apr 1975
6-Month
22.04"
(559.82mm)
19.78"
(502.41mm)
2.26"
(57.41mm)
95th Driest
Driest since:
1977
33rd Wettest
Wettest since:
1998
Oct 1974–Apr 1975
7-Month
23.33"
(592.58mm)
22.91"
(581.91mm)
0.42"
(10.67mm)
74th Driest
Driest since:
2002
54th Wettest
Wettest since:
1984
Sep 1974–Apr 1975
8-Month
28.19"
(716.03mm)
26.46"
(672.08mm)
1.73"
(43.95mm)
87th Driest
Driest since:
1931
41st Wettest
Wettest since:
2019
Aug 1974–Apr 1975
9-Month
33.01"
(838.45mm)
30.83"
(783.08mm)
2.18"
(55.37mm)
84th Driest
Driest since:
1931
44th Wettest
Wettest since:
2019
Jul 1974–Apr 1975
10-Month
34.74"
(882.40mm)
34.99"
(888.75mm)
-0.25"
(-6.35mm)
63rd Driest
Driest since:
1931
65th Wettest
Wettest since:
2019
Jun 1974–Apr 1975
11-Month
39.22"
(996.19mm)
38.83"
(986.28mm)
0.39"
(9.91mm)
68th Driest
Driest since:
1931
60th Wettest
Wettest since:
2019
May 1974–Apr 1975
12-Month
43.51"
(1,105.15mm)
42.55"
(1,080.77mm)
0.96"
(24.38mm)
71st Driest
Driest since:
1931
57th Wettest
Wettest since:
2019
Nov 1973–Apr 1975
18-Month
62.67"
(1,591.82mm)
62.30"
(1,582.42mm)
0.37"
(9.40mm)
64th Driest
Driest since:
1931
63rd Wettest
Wettest since:
2004
May 1973–Apr 1975
24-Month
84.60"
(2,148.84mm)
85.06"
(2,160.52mm)
-0.46"
(-11.68mm)
56th Driest
Driest since:
1931
71st Wettest
Wettest since:
2019
May 1972–Apr 1975
36-Month
139.65"
(3,547.11mm)
127.66"
(3,242.56mm)
11.99"
(304.55mm)
108th Driest
Driest since:
1967
18th Wettest
Wettest since:
2021
May 1971–Apr 1975
48-Month
192.76"
(4,896.10mm)
170.21"
(4,323.33mm)
22.55"
(572.77mm)
118th Driest
Driest since:
1968
7th Wettest
Wettest since:
2021
May 1970–Apr 1975
60-Month
233.36"
(5,927.34mm)
212.58"
(5,399.53mm)
20.78"
(527.81mm)
108th Driest
Driest since:
1967
16th Wettest
Wettest since:
2021

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