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 1966

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 1966
1-Month
3.35"
(85.09mm)
3.73"
(94.74mm)
-0.38"
(-9.65mm)
54th Driest
Driest since:
1964
75th Wettest
Wettest since:
2018
Apr–May 1966
2-Month
7.33"
(186.18mm)
7.21"
(183.13mm)
0.12"
(3.05mm)
66th Driest
Driest since:
1963
63rd Wettest
Wettest since:
1983
Mar–May 1966
3-Month
8.85"
(224.79mm)
10.99"
(279.15mm)
-2.14"
(-54.36mm)
21st Driest
Driest since:
1986
108th Wettest
Wettest since:
1983
Feb–May 1966
4-Month
12.47"
(316.74mm)
13.88"
(352.55mm)
-1.41"
(-35.81mm)
35th Driest
Driest since:
2006
94th Wettest
Wettest since:
1983
Jan–May 1966
5-Month
16.29"
(413.77mm)
17.23"
(437.64mm)
-0.94"
(-23.87mm)
54th Driest
Driest since:
1969
75th Wettest
Wettest since:
1998
Dec 1965–May 1966
6-Month
17.05"
(433.07mm)
20.52"
(521.21mm)
-3.47"
(-88.14mm)
23rd Driest
Driest since:
1986
105th Wettest
Wettest since:
1984
Nov 1965–May 1966
7-Month
17.87"
(453.90mm)
23.51"
(597.15mm)
-5.64"
(-143.25mm)
10th Driest
Driest since:
1977
118th Wettest
Wettest since:
1998
Oct 1965–May 1966
8-Month
20.14"
(511.56mm)
26.64"
(676.66mm)
-6.50"
(-165.10mm)
4th Driest
Driest since:
1925
124th Wettest
Wettest since:
1984
Sep 1965–May 1966
9-Month
22.79"
(578.87mm)
30.19"
(766.83mm)
-7.40"
(-187.96mm)
5th Driest
Driest since:
2002
123rd Wettest
Wettest since:
2019
Aug 1965–May 1966
10-Month
27.57"
(700.28mm)
34.56"
(877.82mm)
-6.99"
(-177.54mm)
10th Driest
Driest since:
1931
118th Wettest
Wettest since:
2019
Jul 1965–May 1966
11-Month
31.05"
(788.67mm)
38.72"
(983.49mm)
-7.67"
(-194.82mm)
9th Driest
Driest since:
1931
119th Wettest
Wettest since:
2019
Jun 1965–May 1966
12-Month
33.49"
(850.65mm)
42.56"
(1,081.02mm)
-9.07"
(-230.37mm)
4th Driest
Driest since:
1931
124th Wettest
Wettest since:
2019
Dec 1964–May 1966
18-Month
51.27"
(1,302.26mm)
63.04"
(1,601.22mm)
-11.77"
(-298.96mm)
3rd Driest
Driest since:
1931
124th Wettest
Wettest since:
2019
Jun 1964–May 1966
24-Month
67.16"
(1,705.86mm)
85.05"
(2,160.27mm)
-17.89"
(-454.41mm)
2nd Driest
Driest since:
1931
125th Wettest
Wettest since:
2019
Jun 1963–May 1966
36-Month
107.64"
(2,734.06mm)
127.65"
(3,242.31mm)
-20.01"
(-508.25mm)
3rd Driest
Driest since:
1967
123rd Wettest
Wettest since:
2021
Jun 1962–May 1966
48-Month
142.52"
(3,620.01mm)
170.18"
(4,322.57mm)
-27.66"
(-702.56mm)
1st Driest
Driest since:
1966
124th Wettest
Wettest since:
2021
Jun 1961–May 1966
60-Month
182.92"
(4,646.17mm)
212.57"
(5,399.28mm)
-29.65"
(-753.11mm)
3rd Driest
Driest since:
1969
121st Wettest
Wettest since:
2022

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