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, May 2007

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
May 2007
1-Month
1.96"
(49.78mm)
3.93"
(99.82mm)
-1.97"
(-50.04mm)
8th Driest
Driest since:
1964
121st Wettest
Wettest since:
1989
Apr–May 2007
2-Month
6.27"
(159.26mm)
7.57"
(192.28mm)
-1.30"
(-33.02mm)
35th Driest
Driest since:
1926
94th Wettest
Wettest since:
2011
Mar–May 2007
3-Month
10.28"
(261.11mm)
11.06"
(280.92mm)
-0.78"
(-19.81mm)
53rd Driest
Driest since:
1926
76th Wettest
Wettest since:
2011
Feb–May 2007
4-Month
12.52"
(318.01mm)
13.66"
(346.96mm)
-1.14"
(-28.95mm)
44th Driest
Driest since:
1941
85th Wettest
Wettest since:
2011
Jan–May 2007
5-Month
16.31"
(414.27mm)
16.71"
(424.43mm)
-0.40"
(-10.16mm)
56th Driest
Driest since:
1941
73rd Wettest
Wettest since:
2011
Dec 2006–May 2007
6-Month
18.62"
(472.95mm)
19.81"
(503.17mm)
-1.19"
(-30.22mm)
45th Driest
Driest since:
1941
83rd Wettest
Wettest since:
2011
Nov 2006–May 2007
7-Month
22.46"
(570.48mm)
23.02"
(584.71mm)
-0.56"
(-14.23mm)
58th Driest
Driest since:
1934
70th Wettest
Wettest since:
1952
Oct 2006–May 2007
8-Month
27.81"
(706.37mm)
26.19"
(665.23mm)
1.62"
(41.14mm)
83rd Driest
Driest since:
1925
45th Wettest
Wettest since:
2011
Sep 2006–May 2007
9-Month
32.87"
(834.90mm)
29.75"
(755.65mm)
3.12"
(79.25mm)
93rd Driest
Driest since:
1941
35th Wettest
Wettest since:
2019
Aug 2006–May 2007
10-Month
36.81"
(934.97mm)
33.62"
(853.95mm)
3.19"
(81.02mm)
94th Driest
Driest since:
1931
34th Wettest
Wettest since:
2019
Jul 2006–May 2007
11-Month
41.89"
(1,064.01mm)
37.82"
(960.63mm)
4.07"
(103.38mm)
101st Driest
Driest since:
1931
27th Wettest
Wettest since:
2019
Jun 2006–May 2007
12-Month
49.56"
(1,258.82mm)
41.97"
(1,066.04mm)
7.59"
(192.78mm)
117th Driest
Driest since:
1931
11th Wettest
Wettest since:
2019
Dec 2005–May 2007
18-Month
66.28"
(1,683.51mm)
61.76"
(1,568.70mm)
4.52"
(114.81mm)
95th Driest
Driest since:
1931
32nd Wettest
Wettest since:
2019
Jun 2005–May 2007
24-Month
89.48"
(2,272.79mm)
83.91"
(2,131.31mm)
5.57"
(141.48mm)
97th Driest
Driest since:
1931
30th Wettest
Wettest since:
2019
Jun 2004–May 2007
36-Month
142.05"
(3,608.07mm)
125.93"
(3,198.62mm)
16.12"
(409.45mm)
118th Driest
Driest since:
1965
8th Wettest
Wettest since:
2020
Jun 2003–May 2007
48-Month
197.84"
(5,025.14mm)
167.92"
(4,265.17mm)
29.92"
(759.97mm)
120th Driest
Driest since:
1966
5th Wettest
Wettest to Date
2020
Jun 2002–May 2007
60-Month
240.71"
(6,114.03mm)
209.84"
(5,329.94mm)
30.87"
(784.09mm)
119th Driest
Driest since:
1967
5th Wettest
Wettest to Date
2022

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