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, July 1931

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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
July 1931 1-Month	5.23" (132.84mm)	4.19" (106.43mm)	1.04" (26.41mm)	99th Driest	Driest since: 1930	1909
July 1931 1-Month	5.23" (132.84mm)	4.19" (106.43mm)	1.04" (26.41mm)	30th Wettest	Wettest since: 1928	2018
Jun–Jul 1931 2-Month	8.91" (226.31mm)	8.36" (212.34mm)	0.55" (13.97mm)	78th Driest	Driest since: 1930	1966
Jun–Jul 1931 2-Month	8.91" (226.31mm)	8.36" (212.34mm)	0.55" (13.97mm)	51st Wettest	Wettest since: 1928	1972
May–Jul 1931 3-Month	14.40" (365.76mm)	12.28" (311.91mm)	2.12" (53.85mm)	102nd Driest	Driest since: 1930	1966
May–Jul 1931 3-Month	14.40" (365.76mm)	12.28" (311.91mm)	2.12" (53.85mm)	27th Wettest	Wettest since: 1928	1989
Apr–Jul 1931 4-Month	17.99" (456.95mm)	15.93" (404.62mm)	2.06" (52.33mm)	99th Driest	Driest since: 1930	1965
	17.99" (456.95mm)	15.93" (404.62mm)	2.06" (52.33mm)	30th Wettest	Wettest since: 1929	1972
	Ties: 1929
Mar–Jul 1931 5-Month	20.85" (529.59mm)	19.42" (493.27mm)	1.43" (36.32mm)	86th Driest	Driest since: 1930	1966
Mar–Jul 1931 5-Month	20.85" (529.59mm)	19.42" (493.27mm)	1.43" (36.32mm)	43rd Wettest	Wettest since: 1928	1972
Feb–Jul 1931 6-Month	22.86" (580.64mm)	22.02" (559.31mm)	0.84" (21.33mm)	76th Driest	Driest since: 1930	1965
	22.86" (580.64mm)	22.02" (559.31mm)	0.84" (21.33mm)	53rd Wettest	Wettest since: 1929	2018
	Ties: 1909
Jan–Jul 1931 7-Month	24.37" (619.00mm)	25.07" (636.78mm)	-0.70" (-17.78mm)	50th Driest	Driest since: 1930	1991
Jan–Jul 1931 7-Month	24.37" (619.00mm)	25.07" (636.78mm)	-0.70" (-17.78mm)	79th Wettest	Wettest since: 1929	2018
Dec 1930–Jul 1931 8-Month	26.74" (679.20mm)	28.17" (715.52mm)	-1.43" (-36.32mm)	39th Driest	Driest since: 1930	1966
	26.74" (679.20mm)	28.17" (715.52mm)	-1.43" (-36.32mm)	89th Wettest	Wettest since: 1929	2019
	Ties: 1935
Nov 1930–Jul 1931 9-Month	28.13" (714.50mm)	31.37" (796.80mm)	-3.24" (-82.30mm)	27th Driest	Driest since: 1930	1966
Nov 1930–Jul 1931 9-Month	28.13" (714.50mm)	31.37" (796.80mm)	-3.24" (-82.30mm)	101st Wettest	Wettest since: 1929	2019
Oct 1930–Jul 1931 10-Month	29.11" (739.39mm)	34.55" (877.57mm)	-5.44" (-138.18mm)	15th Driest	Driest since: 1925	1934
Oct 1930–Jul 1931 10-Month	29.11" (739.39mm)	34.55" (877.57mm)	-5.44" (-138.18mm)	113th Wettest	Wettest since: 1930	2019
Sep 1930–Jul 1931 11-Month	31.52" (800.61mm)	38.11" (967.99mm)	-6.59" (-167.38mm)	7th Driest	Driest since: 1923	1965
Sep 1930–Jul 1931 11-Month	31.52" (800.61mm)	38.11" (967.99mm)	-6.59" (-167.38mm)	121st Wettest	Wettest since: 1930	2019
Aug 1930–Jul 1931 12-Month	32.89" (835.41mm)	41.98" (1,066.29mm)	-9.09" (-230.88mm)	2nd Driest	Driest to Date	1965
Aug 1930–Jul 1931 12-Month	32.89" (835.41mm)	41.98" (1,066.29mm)	-9.09" (-230.88mm)	126th Wettest	Wettest since: 1930	2019
Feb 1930–Jul 1931 18-Month	50.83" (1,291.08mm)	63.96" (1,624.58mm)	-13.13" (-333.50mm)	2nd Driest	Driest to Date	1966
Feb 1930–Jul 1931 18-Month	50.83" (1,291.08mm)	63.96" (1,624.58mm)	-13.13" (-333.50mm)	126th Wettest	Wettest since: 1930	2019
Aug 1929–Jul 1931 24-Month	71.29" (1,810.77mm)	83.89" (2,130.81mm)	-12.60" (-320.04mm)	5th Driest	Driest to Date	1966
Aug 1929–Jul 1931 24-Month	71.29" (1,810.77mm)	83.89" (2,130.81mm)	-12.60" (-320.04mm)	122nd Wettest	Wettest since: 1930	2019
Aug 1928–Jul 1931 36-Month	110.50" (2,806.70mm)	125.92" (3,198.37mm)	-15.42" (-391.67mm)	7th Driest	Driest since: 1911	1966
Aug 1928–Jul 1931 36-Month	110.50" (2,806.70mm)	125.92" (3,198.37mm)	-15.42" (-391.67mm)	119th Wettest	Wettest since: 1930	2019
Aug 1927–Jul 1931 48-Month	161.66" (4,106.16mm)	167.89" (4,264.41mm)	-6.23" (-158.25mm)	25th Driest	Driest since: 1926	1966
Aug 1927–Jul 1931 48-Month	161.66" (4,106.16mm)	167.89" (4,264.41mm)	-6.23" (-158.25mm)	100th Wettest	Wettest since: 1930	2020
Aug 1926–Jul 1931 60-Month	210.70" (5,351.78mm)	209.81" (5,329.17mm)	0.89" (22.61mm)	51st Driest	Driest since: 1927	1966
Aug 1926–Jul 1931 60-Month	210.70" (5,351.78mm)	209.81" (5,329.17mm)	0.89" (22.61mm)	73rd Wettest	Wettest since: 1930	2021

Citing This Page

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