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, July 1991

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
July 1991
1-Month		3.47"
(88.14mm)		4.19"
(106.43mm)		-0.72"
(-18.29mm)		35th Driest
Driest since:
1909
94th Wettest
Wettest since:
2018
Jun–Jul 1991
2-Month		5.06"
(128.52mm)		8.36"
(212.34mm)		-3.30"
(-83.82mm)		4th Driest
Driest since:
1966
125th Wettest
Wettest since:
1972
May–Jul 1991
3-Month		7.29"
(185.17mm)		12.28"
(311.91mm)		-4.99"
(-126.74mm)		3rd Driest
Driest since:
1966
126th Wettest
Wettest since:
1989
Apr–Jul 1991
4-Month		10.44"
(265.18mm)		15.93"
(404.62mm)		-5.49"
(-139.44mm)		3rd Driest
Driest since:
1965
126th Wettest
Wettest since:
1972
Mar–Jul 1991
5-Month		14.32"
(363.73mm)		19.42"
(493.27mm)		-5.10"
(-129.54mm)		4th Driest
Driest since:
1966
125th Wettest
Wettest since:
1972
Feb–Jul 1991
6-Month		16.04"
(407.42mm)		22.02"
(559.31mm)		-5.98"
(-151.89mm)		3rd Driest
Driest since:
1965
126th Wettest
Wettest since:
2018
Jan–Jul 1991
7-Month		18.79"
(477.27mm)		25.07"
(636.78mm)		-6.28"
(-159.51mm)		1st Driest
Driest to Date
1991
128th Wettest
Wettest since:
2018
Dec 1990–Jul 1991
8-Month		25.09"
(637.29mm)		28.17"
(715.52mm)		-3.08"
(-78.23mm)		21st Driest
Driest since:
1966
107th Wettest
Wettest since:
2019
Nov 1990–Jul 1991
9-Month		27.56"
(700.02mm)		31.37"
(796.80mm)		-3.81"
(-96.78mm)		21st Driest
Driest since:
1966
107th Wettest
Wettest since:
2019
Oct 1990–Jul 1991
10-Month		33.37"
(847.60mm)		34.55"
(877.57mm)		-1.18"
(-29.97mm)		42nd Driest
Driest since:
1934
86th Wettest
Wettest since:
2019
Sep 1990–Jul 1991
11-Month		37.49"
(952.25mm)		38.11"
(967.99mm)		-0.62"
(-15.74mm)		49th Driest
Driest since:
1965
79th Wettest
Wettest since:
2019
Aug 1990–Jul 1991
12-Month		42.71"
(1,084.83mm)		41.98"
(1,066.29mm)		0.73"
(18.54mm)		68th Driest
Driest since:
1965
60th Wettest
Wettest since:
2019
Feb 1990–Jul 1991
18-Month		64.86"
(1,647.44mm)		63.96"
(1,624.58mm)		0.90"
(22.86mm)		68th Driest
Driest since:
1966
60th Wettest
Wettest since:
2019
Aug 1989–Jul 1991
24-Month		82.89"
(2,105.41mm)		83.89"
(2,130.81mm)		-1.00"
(-25.40mm)		50th Driest
Driest since:
1966
77th Wettest
Wettest since:
2019
Ties: 1939
Aug 1988–Jul 1991
36-Month		127.87"
(3,247.90mm)		125.92"
(3,198.37mm)		1.95"
(49.53mm)		68th Driest
Driest since:
1966
58th Wettest
Wettest since:
2019
Aug 1987–Jul 1991
48-Month		167.37"
(4,251.20mm)		167.89"
(4,264.41mm)		-0.52"
(-13.21mm)		48th Driest
Driest since:
1966
77th Wettest
Wettest since:
2020
Aug 1986–Jul 1991
60-Month		207.77"
(5,277.36mm)		209.81"
(5,329.17mm)		-2.04"
(-51.81mm)		41st Driest
Driest since:
1966
83rd Wettest
Wettest since:
2021
Ties: 1910

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