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 1906

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
April 1906
1-Month 		3.11"
(78.99mm)		 3.64"
(92.46mm)		 -0.53"
(-13.47mm)		 47th Driest
Driest since:
 1946
82nd Wettest
Wettest since:
 2011
Ties: 1990
Mar–Apr 1906
2-Month 		7.59"
(192.79mm)		 7.14"
(181.36mm)		 0.45"
(11.43mm)		 84th Driest
Driest since:
 1915
45th Wettest
Wettest since:
 2011
Feb–Apr 1906
3-Month 		9.23"
(234.44mm)		 9.73"
(247.14mm)		 -0.50"
(-12.70mm)		 53rd Driest
Driest since:
 1941
76th Wettest
Wettest since:
 2011
Jan–Apr 1906
4-Month 		11.68"
(296.67mm)		 12.78"
(324.61mm)		 -1.10"
(-27.94mm)		 48th Driest
Driest since:
 1941
81st Wettest
Wettest since:
 2011
Dec 1905–Apr 1906
5-Month 		15.32"
(389.13mm)		 15.88"
(403.35mm)		 -0.56"
(-14.22mm)		 57th Driest
Driest since:
 1941
71st Wettest
Wettest since:
 2011
Nov 1905–Apr 1906
6-Month 		17.90"
(454.66mm)		 19.09"
(484.89mm)		 -1.19"
(-30.23mm)		 49th Driest
Driest since:
 1931
79th Wettest
Wettest since:
 1952
Oct 1905–Apr 1906
7-Month 		22.19"
(563.63mm)		 22.27"
(565.66mm)		 -0.08"
(-2.03mm)		 60th Driest
Driest since:
 1925
68th Wettest
Wettest since:
 2011
Sep 1905–Apr 1906
8-Month 		25.39"
(644.91mm)		 25.83"
(656.08mm)		 -0.44"
(-11.17mm)		 58th Driest
Driest since:
 1931
70th Wettest
Wettest since:
 2019
Aug 1905–Apr 1906
9-Month 		30.48"
(774.19mm)		 29.69"
(754.13mm)		 0.79"
(20.06mm)		 71st Driest
Driest since:
 1931
57th Wettest
Wettest since:
 2019
Jul 1905–Apr 1906
10-Month 		35.84"
(910.34mm)		 33.89"
(860.81mm)		 1.95"
(49.53mm)		 84th Driest
Driest since:
 1931
44th Wettest
Wettest since:
 2019
Jun 1905–Apr 1906
11-Month 		40.85"
(1,037.59mm)		 38.05"
(966.47mm)		 2.80"
(71.12mm)		 91st Driest
Driest since:
 1931
37th Wettest
Wettest since:
 2019
May 1905–Apr 1906
12-Month 		43.63"
(1,108.20mm)		 41.95"
(1,065.53mm)		 1.68"
(42.67mm)		 77th Driest
Driest since:
 1931
51st Wettest
Wettest since:
 2019
Ties: 1961
Nov 1904–Apr 1906
18-Month 		59.19"
(1,503.43mm)		 61.03"
(1,550.16mm)		 -1.84"
(-46.73mm)		 42nd Driest
Driest since:
 1931
85th Wettest
Wettest since:
 2019
May 1904–Apr 1906
24-Month 		82.01"
(2,083.05mm)		 83.91"
(2,131.31mm)		 -1.90"
(-48.26mm)		 40th Driest
Driest since:
 1966
87th Wettest
Wettest since:
 2020
May 1903–Apr 1906
36-Month 		126.55"
(3,214.37mm)		 125.93"
(3,198.62mm)		 0.62"
(15.75mm)		 53rd Driest
Driest since:
 1967
73rd Wettest
Wettest since:
 2020
May 1902–Apr 1906
48-Month 		174.80"
(4,439.92mm)		 167.93"
(4,265.42mm)		 6.87"
(174.50mm)		 84th Driest
Driest since:
 1966
41st Wettest
Wettest since:
 2020
May 1901–Apr 1906
60-Month 		222.32"
(5,646.93mm)		 209.83"
(5,329.68mm)		 12.49"
(317.25mm)		 97th Driest
Driest since:
 1967
27th Wettest
Wettest to Date
 2022

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