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 1980

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
April 1980
1-Month
4.39"
(111.51mm)
3.48"
(88.39mm)
0.91"
(23.12mm)
98th Driest
Driest since:
1985
31st Wettest
Wettest since:
1983
Mar–Apr 1980
2-Month
9.76"
(247.90mm)
7.26"
(184.40mm)
2.50"
(63.50mm)
116th Driest
Driest since:
1915
13th Wettest
Wettest since:
1983
Feb–Apr 1980
3-Month
10.86"
(275.84mm)
10.15"
(257.81mm)
0.71"
(18.03mm)
85th Driest
Driest since:
2006
44th Wettest
Wettest since:
1983
Jan–Apr 1980
4-Month
13.47"
(342.14mm)
13.51"
(343.15mm)
-0.04"
(-1.01mm)
72nd Driest
Driest since:
1985
57th Wettest
Wettest since:
1998
Dec 1979–Apr 1980
5-Month
14.96"
(379.98mm)
16.79"
(426.47mm)
-1.83"
(-46.49mm)
40th Driest
Driest since:
1985
88th Wettest
Wettest since:
1937
Nov 1979–Apr 1980
6-Month
18.60"
(472.44mm)
19.78"
(502.41mm)
-1.18"
(-29.97mm)
56th Driest
Driest since:
1977
72nd Wettest
Wettest since:
1998
Oct 1979–Apr 1980
7-Month
23.82"
(605.03mm)
22.91"
(581.91mm)
0.91"
(23.12mm)
85th Driest
Driest since:
2002
43rd Wettest
Wettest since:
1984
Ties: 1948
Sep 1979–Apr 1980
8-Month
31.32"
(795.53mm)
26.46"
(672.08mm)
4.86"
(123.45mm)
102nd Driest
Driest since:
1931
26th Wettest
Wettest since:
2019
Aug 1979–Apr 1980
9-Month
38.19"
(970.03mm)
30.83"
(783.08mm)
7.36"
(186.95mm)
116th Driest
Driest since:
1931
12th Wettest
Wettest since:
2019
Jul 1979–Apr 1980
10-Month
42.87"
(1,088.90mm)
34.99"
(888.75mm)
7.88"
(200.15mm)
119th Driest
Driest since:
1931
9th Wettest
Wettest since:
2019
Jun 1979–Apr 1980
11-Month
47.05"
(1,195.07mm)
38.83"
(986.28mm)
8.22"
(208.79mm)
118th Driest
Driest since:
1931
10th Wettest
Wettest since:
2019
May 1979–Apr 1980
12-Month
51.43"
(1,306.32mm)
42.55"
(1,080.77mm)
8.88"
(225.55mm)
119th Driest
Driest since:
1931
9th Wettest
Wettest since:
2019
Nov 1978–Apr 1980
18-Month
78.05"
(1,982.47mm)
62.30"
(1,582.42mm)
15.75"
(400.05mm)
123rd Driest
Driest since:
1931
4th Wettest
Wettest to Date
2004
May 1978–Apr 1980
24-Month
100.17"
(2,544.32mm)
85.06"
(2,160.52mm)
15.11"
(383.80mm)
119th Driest
Driest since:
1931
8th Wettest
Wettest since:
2019
May 1977–Apr 1980
36-Month
145.29"
(3,690.37mm)
127.66"
(3,242.56mm)
17.63"
(447.81mm)
117th Driest
Driest since:
1967
9th Wettest
Wettest since:
2021
May 1976–Apr 1980
48-Month
184.85"
(4,695.19mm)
170.21"
(4,323.33mm)
14.64"
(371.86mm)
105th Driest
Driest since:
1968
20th Wettest
Wettest since:
2021
May 1975–Apr 1980
60-Month
233.81"
(5,938.77mm)
212.58"
(5,399.53mm)
21.23"
(539.24mm)
110th Driest
Driest since:
1967
14th Wettest
Wettest since:
2021

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