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 1981

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1981
1-Month
3.79"
(96.27mm)
3.48"
(88.39mm)
0.31"
(7.88mm)
85th Driest
Driest since:
1985
44th Wettest
Wettest since:
1983
Mar–Apr 1981
2-Month
5.38"
(136.65mm)
7.26"
(184.40mm)
-1.88"
(-47.75mm)
22nd Driest
Driest since:
1915
107th Wettest
Wettest since:
1983
Ties: 1941
Feb–Apr 1981
3-Month
9.36"
(237.74mm)
10.15"
(257.81mm)
-0.79"
(-20.07mm)
52nd Driest
Driest since:
2006
77th Wettest
Wettest since:
1983
Jan–Apr 1981
4-Month
9.86"
(250.44mm)
13.50"
(342.90mm)
-3.64"
(-92.46mm)
12th Driest
Driest since:
1985
117th Wettest
Wettest since:
1998
Dec 1980–Apr 1981
5-Month
10.69"
(271.53mm)
16.79"
(426.47mm)
-6.10"
(-154.94mm)
2nd Driest
Driest since:
1985
126th Wettest
Wettest since:
1937
Nov 1980–Apr 1981
6-Month
13.75"
(349.25mm)
19.78"
(502.41mm)
-6.03"
(-153.16mm)
4th Driest
Driest since:
1977
124th Wettest
Wettest since:
1998
Ties: 1985
Oct 1980–Apr 1981
7-Month
17.66"
(448.56mm)
22.91"
(581.91mm)
-5.25"
(-133.35mm)
10th Driest
Driest since:
2002
118th Wettest
Wettest since:
1984
Sep 1980–Apr 1981
8-Month
19.87"
(504.70mm)
26.46"
(672.08mm)
-6.59"
(-167.38mm)
7th Driest
Driest since:
1931
121st Wettest
Wettest since:
2019
Aug 1980–Apr 1981
9-Month
22.68"
(576.07mm)
30.83"
(783.08mm)
-8.15"
(-207.01mm)
4th Driest
Driest since:
1931
124th Wettest
Wettest since:
2019
Jul 1980–Apr 1981
10-Month
26.52"
(673.61mm)
34.99"
(888.75mm)
-8.47"
(-215.14mm)
3rd Driest
Driest since:
1931
125th Wettest
Wettest since:
2019
Jun 1980–Apr 1981
11-Month
29.54"
(750.32mm)
38.83"
(986.28mm)
-9.29"
(-235.96mm)
2nd Driest
Driest since:
1931
126th Wettest
Wettest since:
2019
May 1980–Apr 1981
12-Month
33.10"
(840.74mm)
42.55"
(1,080.77mm)
-9.45"
(-240.03mm)
4th Driest
Driest since:
1931
124th Wettest
Wettest since:
2019
Nov 1979–Apr 1981
18-Month
51.70"
(1,313.18mm)
62.30"
(1,582.42mm)
-10.60"
(-269.24mm)
5th Driest
Driest since:
1931
122nd Wettest
Wettest since:
2004
May 1979–Apr 1981
24-Month
84.53"
(2,147.06mm)
85.06"
(2,160.52mm)
-0.53"
(-13.46mm)
55th Driest
Driest since:
1931
72nd Wettest
Wettest since:
2019
May 1978–Apr 1981
36-Month
133.27"
(3,385.06mm)
127.66"
(3,242.56mm)
5.61"
(142.50mm)
83rd Driest
Driest since:
1967
43rd Wettest
Wettest since:
2021
May 1977–Apr 1981
48-Month
178.39"
(4,531.11mm)
170.21"
(4,323.33mm)
8.18"
(207.78mm)
85th Driest
Driest since:
1968
40th Wettest
Wettest since:
2021
May 1976–Apr 1981
60-Month
217.95"
(5,535.93mm)
212.58"
(5,399.53mm)
5.37"
(136.40mm)
72nd Driest
Driest since:
1967
52nd Wettest
Wettest since:
2021

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