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 1920

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
July 1920
1-Month
4.60"
(116.84mm)
4.19"
(106.43mm)
0.41"
(10.41mm)
79th Driest
Driest since:
1909
50th Wettest
Wettest since:
2018
Jun–Jul 1920
2-Month
9.64"
(244.86mm)
8.36"
(212.34mm)
1.28"
(32.52mm)
92nd Driest
Driest since:
1966
37th Wettest
Wettest since:
1972
May–Jul 1920
3-Month
11.74"
(298.20mm)
12.28"
(311.91mm)
-0.54"
(-13.71mm)
45th Driest
Driest since:
1966
84th Wettest
Wettest since:
1989
Ties: 1907
Apr–Jul 1920
4-Month
16.19"
(411.23mm)
15.93"
(404.62mm)
0.26"
(6.61mm)
66th Driest
Driest since:
1965
63rd Wettest
Wettest since:
1972
Mar–Jul 1920
5-Month
19.04"
(483.62mm)
19.42"
(493.27mm)
-0.38"
(-9.65mm)
54th Driest
Driest since:
1966
75th Wettest
Wettest since:
1972
Feb–Jul 1920
6-Month
21.57"
(547.88mm)
22.02"
(559.31mm)
-0.45"
(-11.43mm)
54th Driest
Driest since:
1965
75th Wettest
Wettest since:
2018
Ties: 2013
Jan–Jul 1920
7-Month
24.12"
(612.65mm)
25.07"
(636.78mm)
-0.95"
(-24.13mm)
41st Driest
Driest since:
1991
88th Wettest
Wettest since:
2018
Ties: 1939
Dec 1919–Jul 1920
8-Month
26.70"
(678.18mm)
28.17"
(715.52mm)
-1.47"
(-37.34mm)
37th Driest
Driest since:
1966
91st Wettest
Wettest since:
2019
Ties: 1939
Nov 1919–Jul 1920
9-Month
30.83"
(783.08mm)
31.37"
(796.80mm)
-0.54"
(-13.72mm)
59th Driest
Driest since:
1966
69th Wettest
Wettest since:
2019
Ties: 1914
Oct 1919–Jul 1920
10-Month
35.66"
(905.76mm)
34.55"
(877.57mm)
1.11"
(28.19mm)
77th Driest
Driest since:
1934
51st Wettest
Wettest since:
2019
Sep 1919–Jul 1920
11-Month
37.72"
(958.09mm)
38.11"
(967.99mm)
-0.39"
(-9.90mm)
56th Driest
Driest since:
1965
72nd Wettest
Wettest since:
2019
Aug 1919–Jul 1920
12-Month
43.01"
(1,092.45mm)
41.98"
(1,066.29mm)
1.03"
(26.16mm)
74th Driest
Driest since:
1965
54th Wettest
Wettest since:
2019
Feb 1919–Jul 1920
18-Month
66.51"
(1,689.35mm)
63.96"
(1,624.58mm)
2.55"
(64.77mm)
84th Driest
Driest since:
1966
44th Wettest
Wettest since:
2019
Aug 1918–Jul 1920
24-Month
85.50"
(2,171.70mm)
83.89"
(2,130.81mm)
1.61"
(40.89mm)
70th Driest
Driest since:
1966
57th Wettest
Wettest since:
2019
Aug 1917–Jul 1920
36-Month
126.76"
(3,219.70mm)
125.92"
(3,198.37mm)
0.84"
(21.33mm)
62nd Driest
Driest since:
1966
64th Wettest
Wettest since:
2019
Aug 1916–Jul 1920
48-Month
165.00"
(4,191.00mm)
167.89"
(4,264.41mm)
-2.89"
(-73.41mm)
34th Driest
Driest since:
1966
91st Wettest
Wettest since:
2020
Aug 1915–Jul 1920
60-Month
211.15"
(5,363.21mm)
209.81"
(5,329.17mm)
1.34"
(34.04mm)
52nd Driest
Driest since:
1966
72nd Wettest
Wettest since:
2021

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