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, August 1957

View Period (Months):
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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 1957
1-Month
1.58"
(40.13mm)
3.87"
(98.30mm)
-2.29"
(-58.17mm)
2nd Driest
Driest since:
1930
127th Wettest
Wettest since:
1955
Jul–Aug 1957
2-Month
3.90"
(99.06mm)
8.05"
(204.47mm)
-4.15"
(-105.41mm)
2nd Driest
Driest since:
1930
127th Wettest
Wettest since:
2018
Jun–Aug 1957
3-Month
8.40"
(213.36mm)
12.22"
(310.39mm)
-3.82"
(-97.03mm)
5th Driest
Driest since:
1966
124th Wettest
Wettest since:
2018
May–Aug 1957
4-Month
10.79"
(274.07mm)
16.15"
(410.21mm)
-5.36"
(-136.14mm)
4th Driest
Driest since:
1966
125th Wettest
Wettest since:
2018
Apr–Aug 1957
5-Month
16.35"
(415.29mm)
19.79"
(502.67mm)
-3.44"
(-87.38mm)
14th Driest
Driest since:
1966
115th Wettest
Wettest since:
2018
Mar–Aug 1957
6-Month
18.78"
(477.01mm)
23.29"
(591.57mm)
-4.51"
(-114.56mm)
12th Driest
Driest since:
1966
117th Wettest
Wettest since:
2011
Feb–Aug 1957
7-Month
20.95"
(532.13mm)
25.89"
(657.61mm)
-4.94"
(-125.48mm)
9th Driest
Driest since:
1995
120th Wettest
Wettest since:
2018
Jan–Aug 1957
8-Month
23.09"
(586.49mm)
28.94"
(735.08mm)
-5.85"
(-148.59mm)
6th Driest
Driest since:
1963
123rd Wettest
Wettest since:
2018
Dec 1956–Aug 1957
9-Month
27.14"
(689.36mm)
32.03"
(813.56mm)
-4.89"
(-124.20mm)
11th Driest
Driest since:
1966
117th Wettest
Wettest since:
2018
Ties: 1925
Nov 1956–Aug 1957
10-Month
29.61"
(752.09mm)
35.24"
(895.10mm)
-5.63"
(-143.01mm)
11th Driest
Driest since:
1966
117th Wettest
Wettest since:
2019
Oct 1956–Aug 1957
11-Month
32.24"
(818.90mm)
38.42"
(975.87mm)
-6.18"
(-156.97mm)
11th Driest
Driest since:
1925
117th Wettest
Wettest since:
2019
Sep 1956–Aug 1957
12-Month
36.07"
(916.18mm)
41.98"
(1,066.29mm)
-5.91"
(-150.11mm)
14th Driest
Driest since:
1965
114th Wettest
Wettest since:
2019
Mar 1956–Aug 1957
18-Month
64.65"
(1,642.11mm)
65.21"
(1,656.33mm)
-0.56"
(-14.22mm)
50th Driest
Driest since:
1966
78th Wettest
Wettest since:
2019
Sep 1955–Aug 1957
24-Month
83.09"
(2,110.49mm)
83.89"
(2,130.81mm)
-0.80"
(-20.32mm)
51st Driest
Driest since:
1966
76th Wettest
Wettest since:
2019
Sep 1954–Aug 1957
36-Month
126.33"
(3,208.78mm)
125.89"
(3,197.61mm)
0.44"
(11.17mm)
60th Driest
Driest since:
1966
66th Wettest
Wettest since:
2019
Sep 1953–Aug 1957
48-Month
163.72"
(4,158.49mm)
167.87"
(4,263.90mm)
-4.15"
(-105.41mm)
30th Driest
Driest since:
1966
95th Wettest
Wettest since:
2020
Sep 1952–Aug 1957
60-Month
206.78"
(5,252.21mm)
209.80"
(5,328.92mm)
-3.02"
(-76.71mm)
39th Driest
Driest since:
1966
85th Wettest
Wettest since:
2021

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