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, May 1930

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
May 1930 1-Month	2.90" (73.66mm)	3.93" (99.82mm)	-1.03" (-26.16mm)	30th Driest	Driest since: 1928	1964
May 1930 1-Month	2.90" (73.66mm)	3.93" (99.82mm)	-1.03" (-26.16mm)	99th Wettest	Wettest since: 1929	1989
Apr–May 1930 2-Month	5.83" (148.08mm)	7.57" (192.28mm)	-1.74" (-44.20mm)	26th Driest	Driest since: 1926	1926
Apr–May 1930 2-Month	5.83" (148.08mm)	7.57" (192.28mm)	-1.74" (-44.20mm)	103rd Wettest	Wettest since: 1929	2011
Mar–May 1930 3-Month	8.90" (226.06mm)	11.06" (280.92mm)	-2.16" (-54.86mm)	22nd Driest	Driest since: 1926	1926
Mar–May 1930 3-Month	8.90" (226.06mm)	11.06" (280.92mm)	-2.16" (-54.86mm)	107th Wettest	Wettest since: 1929	2011
Feb–May 1930 4-Month	11.46" (291.08mm)	13.66" (346.96mm)	-2.20" (-55.88mm)	22nd Driest	Driest since: 1926	1941
	11.46" (291.08mm)	13.66" (346.96mm)	-2.20" (-55.88mm)	107th Wettest	Wettest since: 1929	2011
	Ties: 2001
Jan–May 1930 5-Month	13.86" (352.04mm)	16.71" (424.43mm)	-2.85" (-72.39mm)	14th Driest	Driest since: 1926	1941
Jan–May 1930 5-Month	13.86" (352.04mm)	16.71" (424.43mm)	-2.85" (-72.39mm)	115th Wettest	Wettest since: 1929	2011
Dec 1929–May 1930 6-Month	16.70" (424.18mm)	19.81" (503.17mm)	-3.11" (-78.99mm)	14th Driest	Driest since: 1926	1941
Dec 1929–May 1930 6-Month	16.70" (424.18mm)	19.81" (503.17mm)	-3.11" (-78.99mm)	114th Wettest	Wettest since: 1929	2011
Nov 1929–May 1930 7-Month	20.13" (511.30mm)	23.02" (584.71mm)	-2.89" (-73.41mm)	21st Driest	Driest since: 1926	1934
Nov 1929–May 1930 7-Month	20.13" (511.30mm)	23.02" (584.71mm)	-2.89" (-73.41mm)	107th Wettest	Wettest since: 1929	1952
Oct 1929–May 1930 8-Month	25.83" (656.08mm)	26.19" (665.23mm)	-0.36" (-9.15mm)	60th Driest	Driest since: 1926	1925
Oct 1929–May 1930 8-Month	25.83" (656.08mm)	26.19" (665.23mm)	-0.36" (-9.15mm)	68th Wettest	Wettest since: 1929	2011
Sep 1929–May 1930 9-Month	29.55" (750.57mm)	29.75" (755.65mm)	-0.20" (-5.08mm)	64th Driest	Driest since: 1929	1941
Sep 1929–May 1930 9-Month	29.55" (750.57mm)	29.75" (755.65mm)	-0.20" (-5.08mm)	64th Wettest	Wettest since: 1928	2019
Aug 1929–May 1930 10-Month	31.92" (810.77mm)	33.62" (853.95mm)	-1.70" (-43.18mm)	42nd Driest	Driest since: 1926	1931
Aug 1929–May 1930 10-Month	31.92" (810.77mm)	33.62" (853.95mm)	-1.70" (-43.18mm)	86th Wettest	Wettest since: 1929	2019
Jul 1929–May 1930 11-Month	34.97" (888.24mm)	37.82" (960.63mm)	-2.85" (-72.39mm)	30th Driest	Driest since: 1926	1931
Jul 1929–May 1930 11-Month	34.97" (888.24mm)	37.82" (960.63mm)	-2.85" (-72.39mm)	98th Wettest	Wettest since: 1929	2019
Jun 1929–May 1930 12-Month	38.49" (977.65mm)	41.97" (1,066.04mm)	-3.48" (-88.39mm)	28th Driest	Driest since: 1926	1931
Jun 1929–May 1930 12-Month	38.49" (977.65mm)	41.97" (1,066.04mm)	-3.48" (-88.39mm)	100th Wettest	Wettest since: 1929	2019
Dec 1928–May 1930 18-Month	60.03" (1,524.76mm)	61.76" (1,568.70mm)	-1.73" (-43.94mm)	41st Driest	Driest since: 1926	1931
Dec 1928–May 1930 18-Month	60.03" (1,524.76mm)	61.76" (1,568.70mm)	-1.73" (-43.94mm)	86th Wettest	Wettest since: 1929	2019
Jun 1928–May 1930 24-Month	84.53" (2,147.06mm)	83.91" (2,131.31mm)	0.62" (15.75mm)	61st Driest	Driest since: 1926	1931
Jun 1928–May 1930 24-Month	84.53" (2,147.06mm)	83.91" (2,131.31mm)	0.62" (15.75mm)	66th Wettest	Wettest since: 1929	2019
Jun 1927–May 1930 36-Month	130.78" (3,321.81mm)	125.93" (3,198.62mm)	4.85" (123.19mm)	83rd Driest	Driest since: 1927	1965
Jun 1927–May 1930 36-Month	130.78" (3,321.81mm)	125.93" (3,198.62mm)	4.85" (123.19mm)	43rd Wettest	Wettest since: 1929	2020
Jun 1926–May 1930 48-Month	178.69" (4,538.73mm)	167.92" (4,265.17mm)	10.77" (273.56mm)	98th Driest	Driest since: 1929	1966
Jun 1926–May 1930 48-Month	178.69" (4,538.73mm)	167.92" (4,265.17mm)	10.77" (273.56mm)	27th Wettest	Wettest since: 1904	2020
Jun 1925–May 1930 60-Month	215.49" (5,473.45mm)	209.84" (5,329.94mm)	5.65" (143.51mm)	75th Driest	Driest since: 1929	1967
Jun 1925–May 1930 60-Month	215.49" (5,473.45mm)	209.84" (5,329.94mm)	5.65" (143.51mm)	49th Wettest	Wettest since: 1916	2022

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings