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, April 2011

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
April 2011
1-Month
8.06"
(204.72mm)
3.64"
(92.46mm)
4.42"
(112.26mm)
128th Driest
Driest since:
1946
1st Wettest
Wettest to Date
2011
Mar–Apr 2011
2-Month
13.85"
(351.79mm)
7.13"
(181.10mm)
6.72"
(170.69mm)
128th Driest
Driest since:
1915
1st Wettest
Wettest to Date
2011
Feb–Apr 2011
3-Month
17.58"
(446.53mm)
9.73"
(247.14mm)
7.85"
(199.39mm)
128th Driest
Driest since:
1941
1st Wettest
Wettest to Date
2011
Jan–Apr 2011
4-Month
19.48"
(494.79mm)
12.78"
(324.61mm)
6.70"
(170.18mm)
128th Driest
Driest since:
1941
1st Wettest
Wettest to Date
2011
Dec 2010–Apr 2011
5-Month
22.92"
(582.17mm)
15.88"
(403.35mm)
7.04"
(178.82mm)
127th Driest
Driest since:
1941
1st Wettest
Wettest to Date
2011
Nov 2010–Apr 2011
6-Month
26.21"
(665.73mm)
19.09"
(484.89mm)
7.12"
(180.84mm)
126th Driest
Driest since:
1931
2nd Wettest
Wettest since:
1952
Oct 2010–Apr 2011
7-Month
31.36"
(796.54mm)
22.26"
(565.40mm)
9.10"
(231.14mm)
127th Driest
Driest since:
1925
1st Wettest
Wettest to Date
2011
Sep 2010–Apr 2011
8-Month
34.77"
(883.16mm)
25.83"
(656.08mm)
8.94"
(227.08mm)
126th Driest
Driest since:
1931
2nd Wettest
Wettest to Date
2019
Aug 2010–Apr 2011
9-Month
37.88"
(962.15mm)
29.69"
(754.13mm)
8.19"
(208.02mm)
123rd Driest
Driest since:
1931
5th Wettest
Wettest since:
2019
Jul 2010–Apr 2011
10-Month
42.52"
(1,080.01mm)
33.89"
(860.81mm)
8.63"
(219.20mm)
123rd Driest
Driest since:
1931
5th Wettest
Wettest since:
2019
Jun 2010–Apr 2011
11-Month
46.15"
(1,172.21mm)
38.05"
(966.47mm)
8.10"
(205.74mm)
121st Driest
Driest since:
1931
7th Wettest
Wettest since:
2019
May 2010–Apr 2011
12-Month
50.17"
(1,274.32mm)
41.95"
(1,065.53mm)
8.22"
(208.79mm)
119th Driest
Driest since:
1931
9th Wettest
Wettest since:
2019
Nov 2009–Apr 2011
18-Month
67.79"
(1,721.87mm)
61.03"
(1,550.16mm)
6.76"
(171.71mm)
109th Driest
Driest since:
1931
18th Wettest
Wettest since:
2019
May 2009–Apr 2011
24-Month
95.22"
(2,418.59mm)
83.91"
(2,131.31mm)
11.31"
(287.28mm)
116th Driest
Driest since:
1966
11th Wettest
Wettest since:
2020
May 2008–Apr 2011
36-Month
134.63"
(3,419.60mm)
125.93"
(3,198.62mm)
8.70"
(220.98mm)
100th Driest
Driest since:
1967
26th Wettest
Wettest since:
2020
May 2007–Apr 2011
48-Month
180.15"
(4,575.81mm)
167.93"
(4,265.42mm)
12.22"
(310.39mm)
102nd Driest
Driest since:
1966
23rd Wettest
Wettest since:
2020
May 2006–Apr 2011
60-Month
231.07"
(5,869.18mm)
209.83"
(5,329.68mm)
21.24"
(539.50mm)
113th Driest
Driest since:
1967
11th Wettest
Wettest since:
2022

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