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 1941

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 1941
1-Month
2.19"
(55.63mm)
3.93"
(99.82mm)
-1.74"
(-44.19mm)
15th Driest
Driest since:
1964
114th Wettest
Wettest since:
1989
Ties: 1934, 1962
Apr–May 1941
2-Month
4.24"
(107.70mm)
7.57"
(192.28mm)
-3.33"
(-84.58mm)
2nd Driest
Driest since:
1926
127th Wettest
Wettest since:
2011
Mar–May 1941
3-Month
6.33"
(160.78mm)
11.06"
(280.92mm)
-4.73"
(-120.14mm)
2nd Driest
Driest since:
1926
127th Wettest
Wettest since:
2011
Feb–May 1941
4-Month
7.24"
(183.90mm)
13.66"
(346.96mm)
-6.42"
(-163.06mm)
1st Driest
Driest since:
1941
128th Wettest
Wettest since:
2011
Jan–May 1941
5-Month
9.88"
(250.95mm)
16.71"
(424.43mm)
-6.83"
(-173.48mm)
1st Driest
Driest since:
1941
128th Wettest
Wettest since:
2011
Dec 1940–May 1941
6-Month
12.92"
(328.17mm)
19.81"
(503.17mm)
-6.89"
(-175.00mm)
1st Driest
Driest since:
1941
127th Wettest
Wettest since:
2011
Nov 1940–May 1941
7-Month
16.96"
(430.78mm)
23.02"
(584.71mm)
-6.06"
(-153.93mm)
2nd Driest
Driest since:
1934
126th Wettest
Wettest since:
1952
Oct 1940–May 1941
8-Month
19.00"
(482.60mm)
26.19"
(665.23mm)
-7.19"
(-182.63mm)
3rd Driest
Driest since:
1925
125th Wettest
Wettest since:
2011
Sep 1940–May 1941
9-Month
22.52"
(572.01mm)
29.75"
(755.65mm)
-7.23"
(-183.64mm)
1st Driest
Driest since:
1941
127th Wettest
Wettest since:
2019
Aug 1940–May 1941
10-Month
26.82"
(681.23mm)
33.62"
(853.95mm)
-6.80"
(-172.72mm)
4th Driest
Driest since:
1931
124th Wettest
Wettest since:
2019
Jul 1940–May 1941
11-Month
30.19"
(766.83mm)
37.82"
(960.63mm)
-7.63"
(-193.80mm)
2nd Driest
Driest since:
1931
126th Wettest
Wettest since:
2019
Ties: 1969
Jun 1940–May 1941
12-Month
34.44"
(874.78mm)
41.97"
(1,066.04mm)
-7.53"
(-191.26mm)
6th Driest
Driest since:
1931
122nd Wettest
Wettest since:
2019
Dec 1939–May 1941
18-Month
56.08"
(1,424.43mm)
61.76"
(1,568.70mm)
-5.68"
(-144.27mm)
16th Driest
Driest since:
1931
111th Wettest
Wettest since:
2019
Jun 1939–May 1941
24-Month
74.76"
(1,898.90mm)
83.91"
(2,131.31mm)
-9.15"
(-232.41mm)
13th Driest
Driest since:
1931
114th Wettest
Wettest since:
2019
Jun 1938–May 1941
36-Month
115.91"
(2,944.11mm)
125.93"
(3,198.62mm)
-10.02"
(-254.51mm)
14th Driest
Driest since:
1965
112th Wettest
Wettest since:
2020
Jun 1937–May 1941
48-Month
158.97"
(4,037.84mm)
167.92"
(4,265.17mm)
-8.95"
(-227.33mm)
17th Driest
Driest since:
1966
108th Wettest
Wettest since:
2020
Jun 1936–May 1941
60-Month
203.43"
(5,167.12mm)
209.84"
(5,329.94mm)
-6.41"
(-162.82mm)
26th Driest
Driest since:
1967
98th Wettest
Wettest since:
2022

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