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 2017

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 2017
1-Month
5.95"
(151.13mm)
3.93"
(99.82mm)
2.02"
(51.31mm)
113th Driest Driest since: 2016 1964
13th Wettest Wettest since: 1990 1989
Apr–May 2017
2-Month
10.27"
(260.86mm)
7.57"
(192.28mm)
2.70"
(68.58mm)
114th Driest Driest since: 2016 1926
12th Wettest Wettest since: 2011 2011
Mar–May 2017
3-Month
14.25"
(361.95mm)
11.06"
(280.92mm)
3.19"
(81.03mm)
114th Driest Driest since: 2016 1926
12th Wettest Wettest since: 2011 2011
Feb–May 2017
4-Month
16.45"
(417.83mm)
13.66"
(346.96mm)
2.79"
(70.87mm)
109th Driest Driest since: 2016 1941
17th Wettest Wettest since: 2011 2011
Jan–May 2017
5-Month
20.27"
(514.86mm)
16.71"
(424.43mm)
3.56"
(90.43mm)
115th Driest Driest since: 2016 1941
11th Wettest Wettest since: 2011 2011
Dec 2016–May 2017
6-Month
23.89"
(606.81mm)
19.81"
(503.17mm)
4.08"
(103.64mm)
113th Driest Driest since: 2016 1941
12th Wettest Wettest since: 2011 2011
Nov 2016–May 2017
7-Month
25.38"
(644.65mm)
23.02"
(584.71mm)
2.36"
(59.94mm)
96th Driest Driest since: 2016 1934
29th Wettest Wettest since: 2011 1952
Oct 2016–May 2017
8-Month
29.69"
(754.13mm)
26.19"
(665.23mm)
3.50"
(88.90mm)
101st Driest Driest since: 2016 1925
24th Wettest Wettest since: 2011 2011
Sep 2016–May 2017
9-Month
33.24"
(844.30mm)
29.75"
(755.65mm)
3.49"
(88.65mm)
101st Driest Driest since: 2016 1941
24th Wettest Wettest since: 2012 2019
Aug 2016–May 2017
10-Month
37.33"
(948.18mm)
33.62"
(853.95mm)
3.71"
(94.23mm)
96th Driest Driest since: 2016 1931
29th Wettest Wettest since: 2012 2019
Jul 2016–May 2017
11-Month
41.12"
(1,044.45mm)
37.82"
(960.63mm)
3.30"
(83.82mm)
92nd Driest Driest since: 2016 1931
33rd Wettest Wettest since: 2012 2019
Jun 2016–May 2017
12-Month
44.47"
(1,129.54mm)
41.97"
(1,066.04mm)
2.50"
(63.50mm)
85th Driest Driest since: 2016 1931
40th Wettest Wettest since: 2014 2019
Dec 2015–May 2017
18-Month
63.37"
(1,609.60mm)
61.76"
(1,568.70mm)
1.61"
(40.90mm)
75th Driest Driest since: 2016 1931
49th Wettest Wettest since: 2014 2019
Jun 2015–May 2017
24-Month
88.79"
(2,255.27mm)
83.91"
(2,131.31mm)
4.88"
(123.96mm)
88th Driest Driest since: 2016 1931
36th Wettest Wettest since: 2013 2019
Jun 2014–May 2017
36-Month
127.50"
(3,238.50mm)
125.93"
(3,198.62mm)
1.57"
(39.88mm)
63rd Driest Driest since: 2015 1965
60th Wettest Wettest since: 2016 2019
Jun 2013–May 2017
48-Month
173.28"
(4,401.31mm)
167.92"
(4,265.17mm)
5.36"
(136.14mm)
75th Driest Driest since: 2016 1966
47th Wettest Wettest since: 2015 2019
Jun 2012–May 2017
60-Month
215.11"
(5,463.79mm)
209.84"
(5,329.94mm)
5.27"
(133.85mm)
74th Driest Driest since: 2004 1967
47th Wettest Wettest since: 2016 2008

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 12, 2019 from https://www.ncdc.noaa.gov/cag/