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, April 1931

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 1931
1-Month
3.59"
(91.19mm)
3.64"
(92.46mm)
-0.05"
(-1.27mm)
66th Driest
Driest since:
1946
63rd Wettest
Wettest since:
2011
Mar–Apr 1931
2-Month
6.45"
(163.83mm)
7.13"
(181.10mm)
-0.68"
(-17.27mm)
50th Driest
Driest since:
1915
79th Wettest
Wettest since:
2011
Ties: 2014
Feb–Apr 1931
3-Month
8.46"
(214.88mm)
9.73"
(247.14mm)
-1.27"
(-32.26mm)
35th Driest
Driest since:
1941
94th Wettest
Wettest since:
2011
Ties: 1965
Jan–Apr 1931
4-Month
9.97"
(253.24mm)
12.78"
(324.61mm)
-2.81"
(-71.37mm)
12th Driest
Driest since:
1941
117th Wettest
Wettest since:
2011
Dec 1930–Apr 1931
5-Month
12.34"
(313.44mm)
15.88"
(403.35mm)
-3.54"
(-89.91mm)
10th Driest
Driest since:
1941
118th Wettest
Wettest since:
2011
Nov 1930–Apr 1931
6-Month
13.73"
(348.74mm)
19.09"
(484.89mm)
-5.36"
(-136.15mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
1952
Oct 1930–Apr 1931
7-Month
14.71"
(373.63mm)
22.27"
(565.66mm)
-7.56"
(-192.03mm)
2nd Driest
Driest since:
1925
126th Wettest
Wettest since:
2011
Sep 1930–Apr 1931
8-Month
17.12"
(434.85mm)
25.83"
(656.08mm)
-8.71"
(-221.23mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Aug 1930–Apr 1931
9-Month
18.49"
(469.65mm)
29.69"
(754.13mm)
-11.20"
(-284.48mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Jul 1930–Apr 1931
10-Month
20.67"
(525.02mm)
33.89"
(860.81mm)
-13.22"
(-335.79mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Jun 1930–Apr 1931
11-Month
24.97"
(634.24mm)
38.05"
(966.47mm)
-13.08"
(-332.23mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
May 1930–Apr 1931
12-Month
27.87"
(707.90mm)
41.95"
(1,065.53mm)
-14.08"
(-357.63mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Nov 1929–Apr 1931
18-Month
45.10"
(1,145.54mm)
61.03"
(1,550.16mm)
-15.93"
(-404.62mm)
1st Driest
Driest since:
1931
126th Wettest
Wettest since:
2019
May 1929–Apr 1931
24-Month
68.49"
(1,739.65mm)
83.91"
(2,131.31mm)
-15.42"
(-391.66mm)
3rd Driest
Driest since:
1966
124th Wettest
Wettest since:
2020
May 1928–Apr 1931
36-Month
111.67"
(2,836.42mm)
125.93"
(3,198.62mm)
-14.26"
(-362.20mm)
8th Driest
Driest since:
1967
118th Wettest
Wettest since:
2020
May 1927–Apr 1931
48-Month
160.14"
(4,067.56mm)
167.93"
(4,265.42mm)
-7.79"
(-197.86mm)
20th Driest
Driest since:
1966
105th Wettest
Wettest since:
2020
May 1926–Apr 1931
60-Month
205.25"
(5,213.35mm)
209.83"
(5,329.68mm)
-4.58"
(-116.33mm)
32nd Driest
Driest since:
1967
92nd Wettest
Wettest since:
2022
Ties: 1985

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