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, August 1940

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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
August 1940 1-Month	4.30" (109.22mm)	3.87" (98.30mm)	0.43" (10.92mm)	88th Driest	Driest since: 1939	1930
August 1940 1-Month	4.30" (109.22mm)	3.87" (98.30mm)	0.43" (10.92mm)	41st Wettest	Wettest since: 1937	1955
Jul–Aug 1940 2-Month	7.67" (194.82mm)	8.05" (204.47mm)	-0.38" (-9.65mm)	49th Driest	Driest since: 1939	1930
Jul–Aug 1940 2-Month	7.67" (194.82mm)	8.05" (204.47mm)	-0.38" (-9.65mm)	80th Wettest	Wettest since: 1937	2018
Jun–Aug 1940 3-Month	11.92" (302.77mm)	12.22" (310.39mm)	-0.30" (-7.62mm)	54th Driest	Driest since: 1939	1966
	11.92" (302.77mm)	12.22" (310.39mm)	-0.30" (-7.62mm)	75th Wettest	Wettest since: 1938	2018
	Ties: 1985
May–Aug 1940 4-Month	16.35" (415.29mm)	16.15" (410.21mm)	0.20" (5.08mm)	65th Driest	Driest since: 1939	1966
May–Aug 1940 4-Month	16.35" (415.29mm)	16.15" (410.21mm)	0.20" (5.08mm)	64th Wettest	Wettest since: 1937	2018
Apr–Aug 1940 5-Month	21.62" (549.15mm)	19.79" (502.67mm)	1.83" (46.48mm)	94th Driest	Driest since: 1939	1966
	21.62" (549.15mm)	19.79" (502.67mm)	1.83" (46.48mm)	35th Wettest	Wettest since: 1937	2018
	Ties: 1931
Mar–Aug 1940 6-Month	26.50" (673.10mm)	23.29" (591.57mm)	3.21" (81.53mm)	108th Driest	Driest since: 1939	1966
Mar–Aug 1940 6-Month	26.50" (673.10mm)	23.29" (591.57mm)	3.21" (81.53mm)	21st Wettest	Wettest since: 1933	2011
Feb–Aug 1940 7-Month	29.81" (757.17mm)	25.89" (657.61mm)	3.92" (99.56mm)	112th Driest	Driest since: 1939	1995
Feb–Aug 1940 7-Month	29.81" (757.17mm)	25.89" (657.61mm)	3.92" (99.56mm)	17th Wettest	Wettest since: 1933	2018
Jan–Aug 1940 8-Month	31.20" (792.48mm)	28.94" (735.08mm)	2.26" (57.40mm)	97th Driest	Driest since: 1939	1963
Jan–Aug 1940 8-Month	31.20" (792.48mm)	28.94" (735.08mm)	2.26" (57.40mm)	32nd Wettest	Wettest since: 1937	2018
Dec 1939–Aug 1940 9-Month	33.56" (852.42mm)	32.03" (813.56mm)	1.53" (38.86mm)	86th Driest	Driest since: 1939	1966
	33.56" (852.42mm)	32.03" (813.56mm)	1.53" (38.86mm)	42nd Wettest	Wettest since: 1937	2018
	Ties: 1942
Nov 1939–Aug 1940 10-Month	34.58" (878.33mm)	35.24" (895.10mm)	-0.66" (-16.77mm)	53rd Driest	Driest since: 1939	1966
Nov 1939–Aug 1940 10-Month	34.58" (878.33mm)	35.24" (895.10mm)	-0.66" (-16.77mm)	75th Wettest	Wettest since: 1937	2019
Oct 1939–Aug 1940 11-Month	38.51" (978.15mm)	38.42" (975.87mm)	0.09" (2.28mm)	58th Driest	Driest since: 1939	1925
Oct 1939–Aug 1940 11-Month	38.51" (978.15mm)	38.42" (975.87mm)	0.09" (2.28mm)	70th Wettest	Wettest since: 1938	2019
Sep 1939–Aug 1940 12-Month	41.81" (1,061.97mm)	41.98" (1,066.29mm)	-0.17" (-4.32mm)	54th Driest	Driest since: 1939	1965
Sep 1939–Aug 1940 12-Month	41.81" (1,061.97mm)	41.98" (1,066.29mm)	-0.17" (-4.32mm)	74th Wettest	Wettest since: 1937	2019
Mar 1939–Aug 1940 18-Month	61.06" (1,550.92mm)	65.21" (1,656.33mm)	-4.15" (-105.41mm)	25th Driest	Driest since: 1932	1966
Mar 1939–Aug 1940 18-Month	61.06" (1,550.92mm)	65.21" (1,656.33mm)	-4.15" (-105.41mm)	103rd Wettest	Wettest since: 1939	2019
Sep 1938–Aug 1940 24-Month	80.99" (2,057.15mm)	83.89" (2,130.81mm)	-2.90" (-73.66mm)	35th Driest	Driest since: 1939	1966
Sep 1938–Aug 1940 24-Month	80.99" (2,057.15mm)	83.89" (2,130.81mm)	-2.90" (-73.66mm)	92nd Wettest	Wettest since: 1938	2019
Sep 1937–Aug 1940 36-Month	121.85" (3,094.99mm)	125.89" (3,197.61mm)	-4.04" (-102.62mm)	27th Driest	Driest since: 1936	1966
Sep 1937–Aug 1940 36-Month	121.85" (3,094.99mm)	125.89" (3,197.61mm)	-4.04" (-102.62mm)	99th Wettest	Wettest since: 1939	2019
Sep 1936–Aug 1940 48-Month	169.12" (4,295.65mm)	167.87" (4,263.90mm)	1.25" (31.75mm)	56th Driest	Driest since: 1937	1966
	169.12" (4,295.65mm)	167.87" (4,263.90mm)	1.25" (31.75mm)	69th Wettest	Wettest since: 1939	2020
	Ties: 1945
Sep 1935–Aug 1940 60-Month	212.23" (5,390.64mm)	209.80" (5,328.92mm)	2.43" (61.72mm)	61st Driest	Driest since: 1938	1966
Sep 1935–Aug 1940 60-Month	212.23" (5,390.64mm)	209.80" (5,328.92mm)	2.43" (61.72mm)	63rd Wettest	Wettest since: 1939	2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on June 2, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings