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 1964

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 1964
1-Month
5.21"
(132.33mm)
3.48"
(88.39mm)
1.73"
(43.94mm)
115th Driest
Driest since:
1985
14th Wettest
Wettest since:
1983
Ties: 1924
Mar–Apr 1964
2-Month
8.18"
(207.77mm)
7.26"
(184.40mm)
0.92"
(23.37mm)
95th Driest
Driest since:
1915
34th Wettest
Wettest since:
1983
Feb–Apr 1964
3-Month
12.29"
(312.17mm)
10.15"
(257.81mm)
2.14"
(54.36mm)
108th Driest
Driest since:
2006
21st Wettest
Wettest since:
1983
Jan–Apr 1964
4-Month
16.53"
(419.86mm)
13.50"
(342.90mm)
3.03"
(76.96mm)
113th Driest
Driest since:
1985
16th Wettest
Wettest since:
1998
Dec 1963–Apr 1964
5-Month
18.69"
(474.73mm)
16.79"
(426.47mm)
1.90"
(48.26mm)
97th Driest
Driest since:
1985
31st Wettest
Wettest since:
1937
Nov 1963–Apr 1964
6-Month
25.02"
(635.51mm)
19.78"
(502.41mm)
5.24"
(133.10mm)
112th Driest
Driest since:
1977
16th Wettest
Wettest since:
1998
Oct 1963–Apr 1964
7-Month
25.17"
(639.32mm)
22.91"
(581.91mm)
2.26"
(57.41mm)
93rd Driest
Driest since:
2002
35th Wettest
Wettest since:
1984
Sep 1963–Apr 1964
8-Month
29.16"
(740.66mm)
26.46"
(672.08mm)
2.70"
(68.58mm)
94th Driest
Driest since:
1931
34th Wettest
Wettest since:
2019
Aug 1963–Apr 1964
9-Month
32.61"
(828.29mm)
30.83"
(783.08mm)
1.78"
(45.21mm)
81st Driest
Driest since:
1931
47th Wettest
Wettest since:
2019
Jul 1963–Apr 1964
10-Month
34.36"
(872.74mm)
34.99"
(888.75mm)
-0.63"
(-16.01mm)
58th Driest
Driest since:
1931
70th Wettest
Wettest since:
2019
Jun 1963–Apr 1964
11-Month
39.66"
(1,007.36mm)
38.83"
(986.28mm)
0.83"
(21.08mm)
70th Driest
Driest since:
1931
58th Wettest
Wettest since:
2019
May 1963–Apr 1964
12-Month
41.89"
(1,064.01mm)
42.55"
(1,080.77mm)
-0.66"
(-16.76mm)
54th Driest
Driest since:
1931
74th Wettest
Wettest since:
2019
Nov 1962–Apr 1964
18-Month
61.39"
(1,559.31mm)
62.30"
(1,582.42mm)
-0.91"
(-23.11mm)
54th Driest
Driest since:
1931
73rd Wettest
Wettest since:
2004
May 1962–Apr 1964
24-Month
76.94"
(1,954.28mm)
85.06"
(2,160.52mm)
-8.12"
(-206.24mm)
19th Driest
Driest since:
1931
108th Wettest
Wettest since:
2019
May 1961–Apr 1964
36-Month
118.57"
(3,011.68mm)
127.66"
(3,242.56mm)
-9.09"
(-230.88mm)
19th Driest
Driest since:
1967
107th Wettest
Wettest since:
2021
May 1960–Apr 1964
48-Month
166.92"
(4,239.77mm)
170.21"
(4,323.33mm)
-3.29"
(-83.56mm)
42nd Driest
Driest since:
1968
83rd Wettest
Wettest since:
2021
May 1959–Apr 1964
60-Month
208.25"
(5,289.55mm)
212.58"
(5,399.53mm)
-4.33"
(-109.98mm)
38th Driest
Driest since:
1967
86th Wettest
Wettest since:
2021

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