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 1937

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 1937
1-Month
6.20"
(157.48mm)
3.48"
(88.39mm)
2.72"
(69.09mm)
124th Driest
Driest since:
1985
5th Wettest
Wettest since:
1983
Mar–Apr 1937
2-Month
8.22"
(208.79mm)
7.26"
(184.40mm)
0.96"
(24.39mm)
97th Driest
Driest since:
1915
32nd Wettest
Wettest since:
1983
Ties: 1917
Feb–Apr 1937
3-Month
11.38"
(289.05mm)
10.15"
(257.81mm)
1.23"
(31.24mm)
94th Driest
Driest since:
2006
35th Wettest
Wettest since:
1983
Jan–Apr 1937
4-Month
19.27"
(489.46mm)
13.50"
(342.90mm)
5.77"
(146.56mm)
126th Driest
Driest since:
1985
3rd Wettest
Wettest to Date
1998
Dec 1936–Apr 1937
5-Month
24.75"
(628.65mm)
16.79"
(426.47mm)
7.96"
(202.18mm)
127th Driest
Driest since:
1985
1st Wettest
Wettest to Date
1937
Nov 1936–Apr 1937
6-Month
25.74"
(653.80mm)
19.78"
(502.41mm)
5.96"
(151.39mm)
116th Driest
Driest since:
1977
12th Wettest
Wettest since:
1998
Oct 1936–Apr 1937
7-Month
29.04"
(737.62mm)
22.91"
(581.91mm)
6.13"
(155.71mm)
115th Driest
Driest since:
2002
13th Wettest
Wettest since:
1984
Sep 1936–Apr 1937
8-Month
31.52"
(800.61mm)
26.46"
(672.08mm)
5.06"
(128.53mm)
106th Driest
Driest since:
1931
22nd Wettest
Wettest since:
2019
Aug 1936–Apr 1937
9-Month
35.92"
(912.37mm)
30.83"
(783.08mm)
5.09"
(129.29mm)
103rd Driest
Driest since:
1931
25th Wettest
Wettest since:
2019
Jul 1936–Apr 1937
10-Month
39.89"
(1,013.21mm)
34.99"
(888.75mm)
4.90"
(124.46mm)
106th Driest
Driest since:
1931
22nd Wettest
Wettest since:
2019
Ties: 1902
Jun 1936–Apr 1937
11-Month
43.37"
(1,101.60mm)
38.83"
(986.28mm)
4.54"
(115.32mm)
100th Driest
Driest since:
1931
28th Wettest
Wettest since:
2019
May 1936–Apr 1937
12-Month
45.31"
(1,150.87mm)
42.55"
(1,080.77mm)
2.76"
(70.10mm)
86th Driest
Driest since:
1931
42nd Wettest
Wettest since:
2019
Nov 1935–Apr 1937
18-Month
70.67"
(1,795.02mm)
62.30"
(1,582.42mm)
8.37"
(212.60mm)
110th Driest
Driest since:
1931
17th Wettest
Wettest since:
2004
May 1935–Apr 1937
24-Month
97.44"
(2,474.98mm)
85.06"
(2,160.52mm)
12.38"
(314.46mm)
115th Driest
Driest since:
1931
12th Wettest
Wettest since:
2019
May 1934–Apr 1937
36-Month
144.75"
(3,676.65mm)
127.66"
(3,242.56mm)
17.09"
(434.09mm)
115th Driest
Driest since:
1967
11th Wettest
Wettest since:
2021
May 1933–Apr 1937
48-Month
190.63"
(4,842.00mm)
170.21"
(4,323.33mm)
20.42"
(518.67mm)
114th Driest
Driest since:
1968
11th Wettest
Wettest since:
2021
May 1932–Apr 1937
60-Month
237.68"
(6,037.07mm)
212.58"
(5,399.53mm)
25.10"
(637.54mm)
118th Driest
Driest since:
1967
6th Wettest
Wettest to Date
2021

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