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.

Pennsylvania

Precipitation Rankings, May 1905

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
May 1905
1-Month
2.78"
(70.61mm)
3.93"
(99.82mm)
-1.15"
(-29.21mm)
28th Driest
Driest since:
1964
101st Wettest
Wettest since:
1989
Apr–May 1905
2-Month
5.42"
(137.67mm)
7.57"
(192.28mm)
-2.15"
(-54.61mm)
14th Driest
Driest since:
1926
115th Wettest
Wettest since:
2011
Mar–May 1905
3-Month
9.43"
(239.52mm)
11.06"
(280.92mm)
-1.63"
(-41.40mm)
32nd Driest
Driest since:
1926
97th Wettest
Wettest since:
2011
Feb–May 1905
4-Month
11.05"
(280.67mm)
13.66"
(346.96mm)
-2.61"
(-66.29mm)
18th Driest
Driest since:
1941
111th Wettest
Wettest since:
2011
Jan–May 1905
5-Month
14.80"
(375.92mm)
16.71"
(424.43mm)
-1.91"
(-48.51mm)
35th Driest
Driest since:
1941
94th Wettest
Wettest since:
2011
Ties: 2016
Dec 1904–May 1905
6-Month
17.33"
(440.18mm)
19.81"
(503.17mm)
-2.48"
(-62.99mm)
25th Driest
Driest to Date
1941
103rd Wettest
Wettest since:
2011
Nov 1904–May 1905
7-Month
18.34"
(465.84mm)
23.02"
(584.71mm)
-4.68"
(-118.87mm)
8th Driest
Driest to Date
1934
120th Wettest
Wettest since:
1952
Oct 1904–May 1905
8-Month
20.96"
(532.38mm)
26.19"
(665.23mm)
-5.23"
(-132.85mm)
6th Driest
Driest to Date
1925
122nd Wettest
Wettest since:
2011
Sep 1904–May 1905
9-Month
24.08"
(611.63mm)
29.75"
(755.65mm)
-5.67"
(-144.02mm)
6th Driest
Driest to Date
1941
122nd Wettest
Wettest since:
2019
Aug 1904–May 1905
10-Month
28.26"
(717.80mm)
33.62"
(853.95mm)
-5.36"
(-136.15mm)
10th Driest
Driest since:
1931
118th Wettest
Wettest since:
2019
Jul 1904–May 1905
11-Month
33.35"
(847.09mm)
37.82"
(960.63mm)
-4.47"
(-113.54mm)
18th Driest
Driest since:
1931
110th Wettest
Wettest since:
2019
Jun 1904–May 1905
12-Month
37.13"
(943.10mm)
41.97"
(1,066.04mm)
-4.84"
(-122.94mm)
20th Driest
Driest since:
1931
108th Wettest
Wettest since:
2019
Dec 1903–May 1905
18-Month
57.62"
(1,463.55mm)
61.76"
(1,568.70mm)
-4.14"
(-105.15mm)
22nd Driest
Driest to Date
1931
105th Wettest
Wettest since:
2019
Jun 1903–May 1905
24-Month
83.93"
(2,131.82mm)
83.91"
(2,131.31mm)
0.02"
(0.51mm)
54th Driest
Driest since:
1931
73rd Wettest
Wettest since:
2019
Jun 1902–May 1905
36-Month
131.88"
(3,349.75mm)
125.93"
(3,198.62mm)
5.95"
(151.13mm)
87th Driest
Driest since:
1965
39th Wettest
Wettest since:
2020
Jun 1901–May 1905
48-Month
175.75"
(4,464.05mm)
167.92"
(4,265.17mm)
7.83"
(198.88mm)
89th Driest
Driest since:
1966
36th Wettest
Wettest since:
2020
Jun 1900–May 1905
60-Month
217.57"
(5,526.28mm)
209.84"
(5,329.94mm)
7.73"
(196.34mm)
87th Driest
Driest since:
1967
37th Wettest
Wettest since:
2022

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