Statewide Rankings

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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

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

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 30, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings