Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of September 2021. For more information, please see Climatological Rankings.


Pennsylvania

Precipitation Rankings, May 1904

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 1904
1-Month
4.03"
(102.36mm)
3.93"
(99.82mm)
0.10"
(2.54mm)
72nd Driest Driest since: 1903 1964
56th Wettest Wettest since: 1901 1989
Apr–May 1904
2-Month
7.61"
(193.29mm)
7.57"
(192.28mm)
0.04"
(1.01mm)
65th Driest Driest since: 1903 1926
63rd Wettest Wettest since: 1901 2011
Mar–May 1904
3-Month
11.88"
(301.75mm)
11.06"
(280.92mm)
0.82"
(20.83mm)
82nd Driest Driest since: 1903 1926
46th Wettest Wettest since: 1901 2011
Feb–May 1904
4-Month
14.42"
(366.27mm)
13.66"
(346.96mm)
0.76"
(19.31mm)
80th Driest Driest since: 1903 1941
48th Wettest Wettest since: 1901 2011
Jan–May 1904
5-Month
17.97"
(456.44mm)
16.71"
(424.43mm)
1.26"
(32.01mm)
87th Driest Driest since: 1903 1941
41st Wettest Wettest since: 1901 2011
Dec 1903–May 1904
6-Month
20.49"
(520.45mm)
19.81"
(503.17mm)
0.68"
(17.28mm)
78th Driest Driest since: 1900 1941
49th Wettest Wettest since: 1903 2011
Nov 1903–May 1904
7-Month
22.80"
(579.12mm)
23.02"
(584.71mm)
-0.22"
(-5.59mm)
65th Driest Driest since: 1900 1934
62nd Wettest Wettest since: 1903 1952
Oct 1903–May 1904
8-Month
27.19"
(690.63mm)
26.19"
(665.23mm)
1.00"
(25.40mm)
76th Driest Driest since: 1902 1925
51st Wettest Wettest since: 1903 2011
Sep 1903–May 1904
9-Month
29.32"
(744.73mm)
29.75"
(755.65mm)
-0.43"
(-10.92mm)
61st Driest Driest since: 1902 1941
66th Wettest Wettest since: 1903 2019
Aug 1903–May 1904
10-Month
34.97"
(888.24mm)
33.62"
(853.95mm)
1.35"
(34.29mm)
78th Driest Driest since: 1901 1931
49th Wettest Wettest since: 1903 2019
Jul 1903–May 1904
11-Month
40.22"
(1,021.59mm)
37.82"
(960.63mm)
2.40"
(60.96mm)
85th Driest Driest since: 1902 1931
42nd Wettest Wettest since: 1903 2019
Jun 1903–May 1904
12-Month
46.80"
(1,188.72mm)
41.97"
(1,066.04mm)
4.83"
(122.68mm)
103rd Driest Driest since: 1902 1931
24th Wettest Wettest since: 1903 2019
Dec 1902–May 1904
18-Month
69.73"
(1,771.14mm)
61.76"
(1,568.70mm)
7.97"
(202.44mm)
111th Driest Driest since: 1903 1931
15th Wettest Wettest to Date 2019
Jun 1902–May 1904
24-Month
94.75"
(2,406.65mm)
83.91"
(2,131.31mm)
10.84"
(275.34mm)
111th Driest Driest since: 1903 1931
15th Wettest Wettest to Date 2019
Jun 1901–May 1904
36-Month
138.62"
(3,520.95mm)
125.93"
(3,198.62mm)
12.69"
(322.33mm)
108th Driest Driest since: 1903 1965
17th Wettest Wettest to Date 2020
Jun 1900–May 1904
48-Month
180.44"
(4,583.18mm)
167.92"
(4,265.17mm)
12.52"
(318.01mm)
102nd Driest Driest since: 1903 1966
22nd Wettest Wettest to Date 2020
Jun 1899–May 1904
60-Month
218.31"
(5,545.07mm)
209.84"
(5,329.94mm)
8.47"
(215.13mm)
89th Driest Driest since: 1903 1967
34th Wettest Wettest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2021, retrieved on October 16, 2021 from https://www.ncdc.noaa.gov/cag/