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 1970

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 1970
1-Month
4.67"
(118.62mm)
3.48"
(88.39mm)
1.19"
(30.23mm)
105th Driest
Driest since:
1985
24th Wettest
Wettest since:
1983
Mar–Apr 1970
2-Month
8.50"
(215.90mm)
7.26"
(184.40mm)
1.24"
(31.50mm)
100th Driest
Driest since:
1915
29th Wettest
Wettest since:
1983
Feb–Apr 1970
3-Month
11.18"
(283.97mm)
10.15"
(257.81mm)
1.03"
(26.16mm)
89th Driest
Driest since:
2006
40th Wettest
Wettest since:
1983
Jan–Apr 1970
4-Month
12.64"
(321.06mm)
13.50"
(342.90mm)
-0.86"
(-21.84mm)
57th Driest
Driest since:
1985
72nd Wettest
Wettest since:
1998
Ties: 1971, 1990
Dec 1969–Apr 1970
5-Month
19.58"
(497.33mm)
16.79"
(426.47mm)
2.79"
(70.86mm)
106th Driest
Driest since:
1985
22nd Wettest
Wettest since:
1937
Nov 1969–Apr 1970
6-Month
21.82"
(554.23mm)
19.78"
(502.41mm)
2.04"
(51.82mm)
94th Driest
Driest since:
1977
34th Wettest
Wettest since:
1998
Oct 1969–Apr 1970
7-Month
23.23"
(590.04mm)
22.91"
(581.91mm)
0.32"
(8.13mm)
73rd Driest
Driest since:
2002
55th Wettest
Wettest since:
1984
Sep 1969–Apr 1970
8-Month
26.46"
(672.08mm)
26.46"
(672.08mm)
0.00"
(0.00mm)
71st Driest
Driest since:
1931
57th Wettest
Wettest since:
2019
Aug 1969–Apr 1970
9-Month
32.67"
(829.82mm)
30.83"
(783.08mm)
1.84"
(46.74mm)
83rd Driest
Driest since:
1931
45th Wettest
Wettest since:
2019
Jul 1969–Apr 1970
10-Month
39.53"
(1,004.06mm)
34.99"
(888.75mm)
4.54"
(115.31mm)
100th Driest
Driest since:
1931
28th Wettest
Wettest since:
2019
Ties: 1979
Jun 1969–Apr 1970
11-Month
42.32"
(1,074.93mm)
38.83"
(986.28mm)
3.49"
(88.65mm)
89th Driest
Driest since:
1931
39th Wettest
Wettest since:
2019
May 1969–Apr 1970
12-Month
44.49"
(1,130.05mm)
42.55"
(1,080.77mm)
1.94"
(49.28mm)
82nd Driest
Driest since:
1931
46th Wettest
Wettest since:
2019
Nov 1968–Apr 1970
18-Month
59.79"
(1,518.67mm)
62.30"
(1,582.42mm)
-2.51"
(-63.75mm)
45th Driest
Driest since:
1931
82nd Wettest
Wettest since:
2004
May 1968–Apr 1970
24-Month
80.73"
(2,050.54mm)
85.06"
(2,160.52mm)
-4.33"
(-109.98mm)
34th Driest
Driest since:
1931
93rd Wettest
Wettest since:
2019
May 1967–Apr 1970
36-Month
121.84"
(3,094.74mm)
127.66"
(3,242.56mm)
-5.82"
(-147.82mm)
30th Driest
Driest since:
1967
96th Wettest
Wettest since:
2021
May 1966–Apr 1970
48-Month
156.08"
(3,964.43mm)
170.21"
(4,323.33mm)
-14.13"
(-358.90mm)
11th Driest
Driest since:
1968
114th Wettest
Wettest since:
2021
May 1965–Apr 1970
60-Month
187.85"
(4,771.39mm)
212.58"
(5,399.53mm)
-24.73"
(-628.14mm)
5th Driest
Driest since:
1967
119th Wettest
Wettest since:
2021

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