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 1909

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 1909
1-Month
5.62"
(142.75mm)
3.64"
(92.46mm)
1.98"
(50.29mm)
122nd Driest
Driest since:
1946
7th Wettest
Wettest to Date
2011
Mar–Apr 1909
2-Month
8.63"
(219.20mm)
7.13"
(181.10mm)
1.50"
(38.10mm)
108th Driest
Driest since:
1915
21st Wettest
Wettest since:
2011
Feb–Apr 1909
3-Month
13.39"
(340.11mm)
9.73"
(247.14mm)
3.66"
(92.97mm)
124th Driest
Driest since:
1941
5th Wettest
Wettest to Date
2011
Jan–Apr 1909
4-Month
16.47"
(418.34mm)
12.78"
(324.61mm)
3.69"
(93.73mm)
122nd Driest
Driest since:
1941
7th Wettest
Wettest to Date
2011
Dec 1908–Apr 1909
5-Month
19.26"
(489.20mm)
15.88"
(403.35mm)
3.38"
(85.85mm)
113th Driest
Driest since:
1941
15th Wettest
Wettest since:
2011
Nov 1908–Apr 1909
6-Month
20.28"
(515.11mm)
19.09"
(484.89mm)
1.19"
(30.22mm)
87th Driest
Driest since:
1931
41st Wettest
Wettest since:
1952
Oct 1908–Apr 1909
7-Month
22.01"
(559.05mm)
22.27"
(565.66mm)
-0.26"
(-6.61mm)
54th Driest
Driest since:
1925
74th Wettest
Wettest since:
2011
Sep 1908–Apr 1909
8-Month
23.46"
(595.88mm)
25.83"
(656.08mm)
-2.37"
(-60.20mm)
32nd Driest
Driest since:
1931
96th Wettest
Wettest since:
2019
Aug 1908–Apr 1909
9-Month
26.32"
(668.53mm)
29.69"
(754.13mm)
-3.37"
(-85.60mm)
27th Driest
Driest since:
1931
101st Wettest
Wettest since:
2019
Jul 1908–Apr 1909
10-Month
31.06"
(788.92mm)
33.89"
(860.81mm)
-2.83"
(-71.89mm)
33rd Driest
Driest since:
1931
95th Wettest
Wettest since:
2019
Jun 1908–Apr 1909
11-Month
33.60"
(853.44mm)
38.05"
(966.47mm)
-4.45"
(-113.03mm)
18th Driest
Driest since:
1931
110th Wettest
Wettest since:
2019
May 1908–Apr 1909
12-Month
40.34"
(1,024.64mm)
41.95"
(1,065.53mm)
-1.61"
(-40.89mm)
41st Driest
Driest since:
1931
87th Wettest
Wettest since:
2019
Nov 1907–Apr 1909
18-Month
63.99"
(1,625.35mm)
61.03"
(1,550.16mm)
2.96"
(75.19mm)
82nd Driest
Driest since:
1931
45th Wettest
Wettest since:
2019
May 1907–Apr 1909
24-Month
87.88"
(2,232.15mm)
83.91"
(2,131.31mm)
3.97"
(100.84mm)
88th Driest
Driest since:
1966
39th Wettest
Wettest since:
2020
May 1906–Apr 1909
36-Month
131.31"
(3,335.27mm)
125.93"
(3,198.62mm)
5.38"
(136.65mm)
83rd Driest
Driest since:
1967
43rd Wettest
Wettest since:
2020
May 1905–Apr 1909
48-Month
174.94"
(4,443.48mm)
167.93"
(4,265.42mm)
7.01"
(178.06mm)
85th Driest
Driest since:
1966
40th Wettest
Wettest since:
2020
May 1904–Apr 1909
60-Month
213.32"
(5,418.33mm)
209.83"
(5,329.68mm)
3.49"
(88.65mm)
67th Driest
Driest since:
1967
57th Wettest
Wettest since:
2022

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