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 1925

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
May 1925
1-Month 		3.46"
(87.88mm)		 3.93"
(99.82mm)		 -0.47"
(-11.94mm)		 51st Driest
Driest since:
 1964
78th Wettest
Wettest since:
 1989
Apr–May 1925
2-Month 		5.74"
(145.80mm)		 7.57"
(192.28mm)		 -1.83"
(-46.48mm)		 21st Driest
Driest since:
 1926
108th Wettest
Wettest since:
 2011
Ties: 1932
Mar–May 1925
3-Month 		8.38"
(212.85mm)		 11.06"
(280.92mm)		 -2.68"
(-68.07mm)		 13th Driest
Driest since:
 1926
116th Wettest
Wettest since:
 2011
Feb–May 1925
4-Month 		10.55"
(267.97mm)		 13.66"
(346.96mm)		 -3.11"
(-78.99mm)		 9th Driest
Driest since:
 1941
120th Wettest
Wettest since:
 2011
Jan–May 1925
5-Month 		14.00"
(355.60mm)		 16.71"
(424.43mm)		 -2.71"
(-68.83mm)		 16th Driest
Driest since:
 1941
113th Wettest
Wettest since:
 2011
Ties: 1992
Dec 1924–May 1925
6-Month 		16.13"
(409.70mm)		 19.81"
(503.17mm)		 -3.68"
(-93.47mm)		 7th Driest
Driest to Date
 1941
121st Wettest
Wettest since:
 2011
Nov 1924–May 1925
7-Month 		17.70"
(449.58mm)		 23.02"
(584.71mm)		 -5.32"
(-135.13mm)		 4th Driest
Driest to Date
 1934
124th Wettest
Wettest since:
 1952
Oct 1924–May 1925
8-Month 		18.02"
(457.71mm)		 26.19"
(665.23mm)		 -8.17"
(-207.52mm)		 1st Driest
Driest to Date
 1925
127th Wettest
Wettest since:
 2011
Sep 1924–May 1925
9-Month 		24.52"
(622.81mm)		 29.75"
(755.65mm)		 -5.23"
(-132.84mm)		 8th Driest
Driest since:
 1941
120th Wettest
Wettest since:
 2019
Aug 1924–May 1925
10-Month 		28.08"
(713.23mm)		 33.62"
(853.95mm)		 -5.54"
(-140.72mm)		 6th Driest
Driest since:
 1931
122nd Wettest
Wettest since:
 2019
Jul 1924–May 1925
11-Month 		31.53"
(800.86mm)		 37.82"
(960.63mm)		 -6.29"
(-159.77mm)		 9th Driest
Driest since:
 1931
119th Wettest
Wettest since:
 2019
Jun 1924–May 1925
12-Month 		36.88"
(936.75mm)		 41.97"
(1,066.04mm)		 -5.09"
(-129.29mm)		 18th Driest
Driest since:
 1931
110th Wettest
Wettest since:
 2019
Dec 1923–May 1925
18-Month 		61.85"
(1,570.99mm)		 61.76"
(1,568.70mm)		 0.09"
(2.29mm)		 64th Driest
Driest since:
 1931
63rd Wettest
Wettest since:
 2019
Jun 1923–May 1925
24-Month 		80.51"
(2,044.95mm)		 83.91"
(2,131.31mm)		 -3.40"
(-86.36mm)		 35th Driest
Driest since:
 1931
92nd Wettest
Wettest since:
 2019
Jun 1922–May 1925
36-Month 		116.14"
(2,949.96mm)		 125.93"
(3,198.62mm)		 -9.79"
(-248.66mm)		 15th Driest
Driest since:
 1965
111th Wettest
Wettest since:
 2020
Jun 1921–May 1925
48-Month 		157.57"
(4,002.28mm)		 167.92"
(4,265.17mm)		 -10.35"
(-262.89mm)		 15th Driest
Driest since:
 1966
110th Wettest
Wettest since:
 2020
Jun 1920–May 1925
60-Month 		200.13"
(5,083.30mm)		 209.84"
(5,329.94mm)		 -9.71"
(-246.64mm)		 18th Driest
Driest to Date
 1967
106th Wettest
Wettest since:
 2022

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