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 August 2021. For more information, please see Climatological Rankings.


Pennsylvania

Precipitation Rankings, May 2015

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 2015
1-Month
2.57"
(65.28mm)
3.93"
(99.82mm)
-1.36"
(-34.54mm)
23rd Driest Driest since: 2007 1964
105th Wettest Wettest since: 2014 1989
Apr–May 2015
2-Month
6.43"
(163.32mm)
7.57"
(192.28mm)
-1.14"
(-28.96mm)
44th Driest Driest since: 2013 1926
84th Wettest Wettest since: 2014 2011
Mar–May 2015
3-Month
9.62"
(244.35mm)
11.06"
(280.92mm)
-1.44"
(-36.57mm)
37th Driest Driest since: 2013 1926
91st Wettest Wettest since: 2014 2011
Feb–May 2015
4-Month
11.14"
(282.96mm)
13.66"
(346.96mm)
-2.52"
(-64.00mm)
21st Driest Driest since: 2013 1941
107th Wettest Wettest since: 2014 2011
Jan–May 2015
5-Month
13.58"
(344.93mm)
16.71"
(424.43mm)
-3.13"
(-79.50mm)
10th Driest Driest since: 2013 1941
118th Wettest Wettest since: 2014 2011
Dec 2014–May 2015
6-Month
16.54"
(420.12mm)
19.81"
(503.17mm)
-3.27"
(-83.05mm)
11th Driest Driest since: 2001 1941
116th Wettest Wettest since: 2014 2011
Nov 2014–May 2015
7-Month
18.98"
(482.09mm)
23.02"
(584.71mm)
-4.04"
(-102.62mm)
10th Driest Driest since: 2001 1934
117th Wettest Wettest since: 2014 1952
Oct 2014–May 2015
8-Month
22.71"
(576.83mm)
26.19"
(665.23mm)
-3.48"
(-88.40mm)
20th Driest Driest since: 2001 1925
107th Wettest Wettest since: 2014 2011
Sep 2014–May 2015
9-Month
24.59"
(624.59mm)
29.75"
(755.65mm)
-5.16"
(-131.06mm)
9th Driest Driest since: 1965 1941
118th Wettest Wettest since: 2014 2019
Aug 2014–May 2015
10-Month
28.87"
(733.30mm)
33.62"
(853.95mm)
-4.75"
(-120.65mm)
17th Driest Driest since: 2001 1931
110th Wettest Wettest since: 2014 2019
Jul 2014–May 2015
11-Month
33.40"
(848.36mm)
37.82"
(960.63mm)
-4.42"
(-112.27mm)
19th Driest Driest since: 2001 1931
108th Wettest Wettest since: 2014 2019
Jun 2014–May 2015
12-Month
38.71"
(983.23mm)
41.97"
(1,066.04mm)
-3.26"
(-82.81mm)
29th Driest Driest since: 2002 1931
98th Wettest Wettest since: 2014 2019
Dec 2013–May 2015
18-Month
60.00"
(1,524.00mm)
61.76"
(1,568.70mm)
-1.76"
(-44.70mm)
39th Driest Driest since: 2002 1931
87th Wettest Wettest since: 2014 2019
Ties: 1954
Jun 2013–May 2015
24-Month
84.49"
(2,146.05mm)
83.91"
(2,131.31mm)
0.58"
(14.74mm)
59th Driest Driest since: 2010 1931
67th Wettest Wettest since: 2014 2019
Jun 2012–May 2015
36-Month
126.32"
(3,208.53mm)
125.93"
(3,198.62mm)
0.39"
(9.91mm)
56th Driest Driest since: 2003 1965
69th Wettest Wettest since: 2014 2020
Jun 2011–May 2015
48-Month
177.14"
(4,499.36mm)
167.92"
(4,265.17mm)
9.22"
(234.19mm)
95th Driest Driest since: 2004 1966
29th Wettest Wettest since: 2014 2020
Jun 2010–May 2015
60-Month
228.99"
(5,816.35mm)
209.84"
(5,329.94mm)
19.15"
(486.41mm)
107th Driest Driest since: 2013 1967
16th Wettest Wettest since: 2014 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 18, 2021 from https://www.ncdc.noaa.gov/cag/