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 2019

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 2019
1-Month
6.52"
(165.61mm)
3.93"
(99.82mm)
2.59"
(65.79mm)
124th Driest
Driest since:
1964
5th Wettest
Wettest since:
1989
Apr–May 2019
2-Month
11.05"
(280.67mm)
7.57"
(192.28mm)
3.48"
(88.39mm)
123rd Driest
Driest since:
1926
6th Wettest
Wettest since:
2011
Mar–May 2019
3-Month
14.02"
(356.11mm)
11.06"
(280.92mm)
2.96"
(75.19mm)
116th Driest
Driest since:
1926
13th Wettest
Wettest since:
2011
Feb–May 2019
4-Month
17.47"
(443.74mm)
13.66"
(346.96mm)
3.81"
(96.78mm)
118th Driest
Driest since:
1941
11th Wettest
Wettest since:
2011
Jan–May 2019
5-Month
21.74"
(552.20mm)
16.71"
(424.43mm)
5.03"
(127.77mm)
124th Driest
Driest since:
1941
5th Wettest
Wettest since:
2011
Dec 2018–May 2019
6-Month
26.00"
(660.40mm)
19.81"
(503.17mm)
6.19"
(157.23mm)
124th Driest
Driest since:
1941
4th Wettest
Wettest since:
2011
Nov 2018–May 2019
7-Month
32.06"
(814.32mm)
23.02"
(584.71mm)
9.04"
(229.61mm)
126th Driest
Driest since:
1934
2nd Wettest
Wettest since:
1952
Oct 2018–May 2019
8-Month
36.34"
(923.04mm)
26.19"
(665.23mm)
10.15"
(257.81mm)
126th Driest
Driest since:
1925
2nd Wettest
Wettest since:
2011
Sep 2018–May 2019
9-Month
45.22"
(1,148.59mm)
29.75"
(755.65mm)
15.47"
(392.94mm)
127th Driest
Driest since:
1941
1st Wettest
Wettest to Date
2019
Aug 2018–May 2019
10-Month
51.48"
(1,307.59mm)
33.62"
(853.95mm)
17.86"
(453.64mm)
127th Driest
Driest since:
1931
1st Wettest
Wettest to Date
2019
Jul 2018–May 2019
11-Month
59.01"
(1,498.85mm)
37.82"
(960.63mm)
21.19"
(538.22mm)
127th Driest
Driest since:
1931
1st Wettest
Wettest to Date
2019
Jun 2018–May 2019
12-Month
64.33"
(1,633.98mm)
41.97"
(1,066.04mm)
22.36"
(567.94mm)
127th Driest
Driest since:
1931
1st Wettest
Wettest to Date
2019
Dec 2017–May 2019
18-Month
87.48"
(2,221.99mm)
61.76"
(1,568.70mm)
25.72"
(653.29mm)
126th Driest
Driest since:
1931
1st Wettest
Wettest to Date
2019
Jun 2017–May 2019
24-Month
112.12"
(2,847.85mm)
83.91"
(2,131.31mm)
28.21"
(716.54mm)
126th Driest
Driest since:
1931
1st Wettest
Wettest to Date
2019
Jun 2016–May 2019
36-Month
156.59"
(3,977.39mm)
125.93"
(3,198.62mm)
30.66"
(778.77mm)
124th Driest
Driest since:
1965
2nd Wettest
Wettest to Date
2020
Jun 2015–May 2019
48-Month
200.91"
(5,103.11mm)
167.92"
(4,265.17mm)
32.99"
(837.94mm)
122nd Driest
Driest since:
1966
3rd Wettest
Wettest to Date
2020
Jun 2014–May 2019
60-Month
239.62"
(6,086.35mm)
209.84"
(5,329.94mm)
29.78"
(756.41mm)
118th Driest
Driest since:
1967
6th Wettest
Wettest since:
2022

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