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 October 2019. For more information, please see Climatological Rankings.


Pennsylvania

Precipitation Rankings, May 1909

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1909
1-Month
3.10"
(78.74mm)
3.93"
(99.82mm)
-0.83"
(-21.08mm)
34th Driest Driest since: 1905 1964
92nd Wettest Wettest since: 1908 1989
Ties: 1935
Apr–May 1909
2-Month
8.72"
(221.49mm)
7.57"
(192.28mm)
1.15"
(29.21mm)
92nd Driest Driest since: 1907 1926
34th Wettest Wettest since: 1908 2011
Mar–May 1909
3-Month
11.73"
(297.94mm)
11.06"
(280.92mm)
0.67"
(17.02mm)
78th Driest Driest since: 1907 1926
48th Wettest Wettest since: 1908 2011
Feb–May 1909
4-Month
16.49"
(418.85mm)
13.66"
(346.96mm)
2.83"
(71.89mm)
110th Driest Driest since: 1907 1941
16th Wettest Wettest since: 1908 2011
Jan–May 1909
5-Month
19.57"
(497.08mm)
16.71"
(424.43mm)
2.86"
(72.65mm)
106th Driest Driest since: 1907 1941
20th Wettest Wettest since: 1908 2011
Dec 1908–May 1909
6-Month
22.36"
(567.94mm)
19.81"
(503.17mm)
2.55"
(64.77mm)
98th Driest Driest since: 1907 1941
27th Wettest Wettest since: 1908 2011
Nov 1908–May 1909
7-Month
23.38"
(593.85mm)
23.02"
(584.71mm)
0.36"
(9.14mm)
72nd Driest Driest since: 1907 1934
53rd Wettest Wettest since: 1908 1952
Oct 1908–May 1909
8-Month
25.11"
(637.79mm)
26.19"
(665.23mm)
-1.08"
(-27.44mm)
46th Driest Driest since: 1905 1925
79th Wettest Wettest since: 1908 2011
Sep 1908–May 1909
9-Month
26.56"
(674.62mm)
29.75"
(755.65mm)
-3.19"
(-81.03mm)
26th Driest Driest since: 1905 1941
99th Wettest Wettest since: 1908 2019
Aug 1908–May 1909
10-Month
29.42"
(747.27mm)
33.62"
(853.95mm)
-4.20"
(-106.68mm)
20th Driest Driest since: 1905 1931
105th Wettest Wettest since: 1908 2019
Jul 1908–May 1909
11-Month
34.16"
(867.66mm)
37.82"
(960.63mm)
-3.66"
(-92.97mm)
25th Driest Driest since: 1905 1931
100th Wettest Wettest since: 1908 2019
Jun 1908–May 1909
12-Month
36.70"
(932.18mm)
41.97"
(1,066.04mm)
-5.27"
(-133.86mm)
16th Driest Driest since: 1896 1931
109th Wettest Wettest since: 1908 2019
Dec 1907–May 1909
18-Month
63.75"
(1,619.25mm)
61.76"
(1,568.70mm)
1.99"
(50.55mm)
78th Driest Driest since: 1907 1931
46th Wettest Wettest since: 1908 2019
Jun 1907–May 1909
24-Month
87.86"
(2,231.64mm)
83.91"
(2,131.31mm)
3.95"
(100.33mm)
81st Driest Driest since: 1907 1931
43rd Wettest Wettest since: 1908 2019
Jun 1906–May 1909
36-Month
131.15"
(3,331.21mm)
125.93"
(3,198.62mm)
5.22"
(132.59mm)
85th Driest Driest since: 1907 1965
38th Wettest Wettest since: 1908 2019
Jun 1905–May 1909
48-Month
175.26"
(4,451.60mm)
167.92"
(4,265.17mm)
7.34"
(186.43mm)
85th Driest Driest since: 1907 1966
37th Wettest Wettest since: 1908 2019
Jun 1904–May 1909
60-Month
212.39"
(5,394.71mm)
209.84"
(5,329.94mm)
2.55"
(64.77mm)
60th Driest Driest since: 1902 1967
61st Wettest Wettest since: 1908 2008
Ties: 1986

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 14, 2019 from https://www.ncdc.noaa.gov/cag/