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, May 2004

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
May 2004
1-Month
3.88"
(98.55mm)
3.73"
(94.74mm)
0.15"
(3.81mm)
70th Driest
Driest since:
1964
59th Wettest
Wettest since:
2018
Apr–May 2004
2-Month
9.28"
(235.71mm)
7.21"
(183.13mm)
2.07"
(52.58mm)
105th Driest
Driest since:
1963
24th Wettest
Wettest since:
1983
Mar–May 2004
3-Month
11.75"
(298.45mm)
10.99"
(279.15mm)
0.76"
(19.30mm)
86th Driest
Driest since:
1986
43rd Wettest
Wettest since:
1983
Feb–May 2004
4-Month
14.22"
(361.19mm)
13.88"
(352.55mm)
0.34"
(8.64mm)
79th Driest
Driest since:
2006
50th Wettest
Wettest since:
1983
Jan–May 2004
5-Month
16.47"
(418.34mm)
17.23"
(437.64mm)
-0.76"
(-19.30mm)
60th Driest
Driest since:
1969
69th Wettest
Wettest since:
1998
Dec 2003–May 2004
6-Month
21.37"
(542.80mm)
20.52"
(521.21mm)
0.85"
(21.59mm)
82nd Driest
Driest since:
1986
46th Wettest
Wettest since:
1984
Ties: 1997
Nov 2003–May 2004
7-Month
26.00"
(660.40mm)
23.51"
(597.15mm)
2.49"
(63.25mm)
94th Driest
Driest since:
1977
34th Wettest
Wettest since:
1998
Oct 2003–May 2004
8-Month
30.22"
(767.59mm)
26.64"
(676.66mm)
3.58"
(90.93mm)
101st Driest
Driest since:
1925
27th Wettest
Wettest since:
1984
Sep 2003–May 2004
9-Month
38.07"
(966.98mm)
30.19"
(766.83mm)
7.88"
(200.15mm)
116th Driest
Driest since:
2002
12th Wettest
Wettest since:
2019
Aug 2003–May 2004
10-Month
43.12"
(1,095.25mm)
34.56"
(877.82mm)
8.56"
(217.43mm)
121st Driest
Driest since:
1931
7th Wettest
Wettest since:
2019
Jul 2003–May 2004
11-Month
48.50"
(1,231.90mm)
38.72"
(983.49mm)
9.78"
(248.41mm)
125th Driest
Driest since:
1931
3rd Wettest
Wettest since:
2019
Jun 2003–May 2004
12-Month
55.39"
(1,406.91mm)
42.56"
(1,081.02mm)
12.83"
(325.89mm)
126th Driest
Driest since:
1931
2nd Wettest
Wettest to Date
2019
Dec 2002–May 2004
18-Month
81.48"
(2,069.59mm)
63.04"
(1,601.22mm)
18.44"
(468.37mm)
125th Driest
Driest since:
1931
2nd Wettest
Wettest to Date
2019
Jun 2002–May 2004
24-Month
104.53"
(2,655.06mm)
85.05"
(2,160.27mm)
19.48"
(494.79mm)
124th Driest
Driest since:
1931
3rd Wettest
Wettest since:
2019
Jun 2001–May 2004
36-Month
138.30"
(3,512.82mm)
127.65"
(3,242.31mm)
10.65"
(270.51mm)
105th Driest
Driest since:
1967
21st Wettest
Wettest since:
2021
Jun 2000–May 2004
48-Month
180.67"
(4,589.02mm)
170.18"
(4,322.57mm)
10.49"
(266.45mm)
88th Driest
Driest since:
1966
37th Wettest
Wettest since:
2021
Jun 1999–May 2004
60-Month
226.05"
(5,741.67mm)
212.57"
(5,399.28mm)
13.48"
(342.39mm)
98th Driest
Driest since:
1969
26th Wettest
Wettest since:
2022

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