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 1927

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 1927
1-Month
4.39"
(111.51mm)
3.93"
(99.82mm)
0.46"
(11.69mm)
83rd Driest
Driest since:
1964
46th Wettest
Wettest since:
1989
Apr–May 1927
2-Month
8.07"
(204.98mm)
7.57"
(192.28mm)
0.50"
(12.70mm)
81st Driest
Driest since:
1926
48th Wettest
Wettest since:
2011
Mar–May 1927
3-Month
10.97"
(278.64mm)
11.06"
(280.92mm)
-0.09"
(-2.28mm)
65th Driest
Driest since:
1926
64th Wettest
Wettest since:
2011
Feb–May 1927
4-Month
14.50"
(368.30mm)
13.66"
(346.96mm)
0.84"
(21.34mm)
81st Driest
Driest since:
1941
48th Wettest
Wettest since:
2011
Jan–May 1927
5-Month
17.28"
(438.91mm)
16.71"
(424.43mm)
0.57"
(14.48mm)
75th Driest
Driest since:
1941
54th Wettest
Wettest since:
2011
Dec 1926–May 1927
6-Month
19.82"
(503.43mm)
19.81"
(503.17mm)
0.01"
(0.26mm)
62nd Driest
Driest since:
1941
66th Wettest
Wettest since:
2011
Ties: 2002
Nov 1926–May 1927
7-Month
24.35"
(618.49mm)
23.02"
(584.71mm)
1.33"
(33.78mm)
85th Driest
Driest since:
1934
43rd Wettest
Wettest since:
1952
Ties: 1902
Oct 1926–May 1927
8-Month
28.90"
(734.06mm)
26.19"
(665.23mm)
2.71"
(68.83mm)
101st Driest
Driest since:
1925
27th Wettest
Wettest since:
2011
Sep 1926–May 1927
9-Month
34.85"
(885.19mm)
29.75"
(755.65mm)
5.10"
(129.54mm)
111th Driest
Driest since:
1941
17th Wettest
Wettest since:
2019
Ties: 2008
Aug 1926–May 1927
10-Month
40.55"
(1,029.97mm)
33.62"
(853.95mm)
6.93"
(176.02mm)
117th Driest
Driest since:
1931
11th Wettest
Wettest since:
2019
Jul 1926–May 1927
11-Month
44.17"
(1,121.92mm)
37.82"
(960.63mm)
6.35"
(161.29mm)
117th Driest
Driest since:
1931
11th Wettest
Wettest since:
2019
Jun 1926–May 1927
12-Month
47.91"
(1,216.91mm)
41.97"
(1,066.04mm)
5.94"
(150.87mm)
112th Driest
Driest since:
1931
16th Wettest
Wettest since:
2019
Dec 1925–May 1927
18-Month
62.23"
(1,580.64mm)
61.76"
(1,568.70mm)
0.47"
(11.94mm)
67th Driest
Driest since:
1931
60th Wettest
Wettest since:
2019
Jun 1925–May 1927
24-Month
84.71"
(2,151.63mm)
83.91"
(2,131.31mm)
0.80"
(20.32mm)
62nd Driest
Driest since:
1931
65th Wettest
Wettest since:
2019
Jun 1924–May 1927
36-Month
121.59"
(3,088.39mm)
125.93"
(3,198.62mm)
-4.34"
(-110.23mm)
31st Driest
Driest since:
1965
95th Wettest
Wettest since:
2020
Jun 1923–May 1927
48-Month
165.22"
(4,196.59mm)
167.92"
(4,265.17mm)
-2.70"
(-68.58mm)
35th Driest
Driest since:
1966
90th Wettest
Wettest since:
2020
Jun 1922–May 1927
60-Month
200.85"
(5,101.59mm)
209.84"
(5,329.94mm)
-8.99"
(-228.35mm)
19th Driest
Driest since:
1967
105th Wettest
Wettest since:
2022

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