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 January 1895. For more information, please see Climatological Rankings.


Pennsylvania

Precipitation Rankings, May 2018

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2018)
Wettest/Driest
Since
Record
May 2018
1-Month
5.49"
(139.45mm)
3.93"
(99.82mm)
1.56"
(39.63mm)
104ᵗʰ Driest Driest since: 2016 1964
21ˢᵗ Wettest Wettest since: 2017 1989
Ties: 1931
Apr–May 2018
2-Month
9.66"
(245.36mm)
7.57"
(192.28mm)
2.09"
(53.08mm)
106ᵗʰ Driest Driest since: 2016 1926
19ᵗʰ Wettest Wettest since: 2017 2011
Mar–May 2018
3-Month
12.78"
(324.61mm)
11.06"
(280.92mm)
1.72"
(43.69mm)
99ᵗʰ Driest Driest since: 2016 1926
26ᵗʰ Wettest Wettest since: 2017 2011
Feb–May 2018
4-Month
18.18"
(461.77mm)
13.66"
(346.96mm)
4.52"
(114.81mm)
122ⁿᵈ Driest Driest since: 2017 1941
3ʳᵈ Wettest Wettest since: 2011 2011
Jan–May 2018
5-Month
21.46"
(545.08mm)
16.71"
(424.43mm)
4.75"
(120.65mm)
119ᵗʰ Driest Driest since: 2017 1941
6ᵗʰ Wettest Wettest since: 2011 2011
Dec 2017–May 2018
6-Month
23.16"
(588.26mm)
19.81"
(503.17mm)
3.35"
(85.09mm)
110ᵗʰ Driest Driest since: 2016 1941
14ᵗʰ Wettest Wettest since: 2017 2011
Nov 2017–May 2018
7-Month
26.05"
(661.67mm)
23.02"
(584.71mm)
3.03"
(76.96mm)
103ʳᵈ Driest Driest since: 2017 1934
21ˢᵗ Wettest Wettest since: 2011 1952
Oct 2017–May 2018
8-Month
31.14"
(790.96mm)
26.19"
(665.23mm)
4.95"
(125.73mm)
108ᵗʰ Driest Driest since: 2017 1925
16ᵗʰ Wettest Wettest since: 2011 2011
Sep 2017–May 2018
9-Month
33.20"
(843.28mm)
29.75"
(755.65mm)
3.45"
(87.63mm)
100ᵗʰ Driest Driest since: 2016 1941
24ᵗʰ Wettest Wettest since: 2017 2011
Aug 2017–May 2018
10-Month
37.04"
(940.82mm)
33.62"
(853.95mm)
3.42"
(86.87mm)
93ʳᵈ Driest Driest since: 2016 1931
31ˢᵗ Wettest Wettest since: 2017 2012
Jul 2017–May 2018
11-Month
43.18"
(1,096.77mm)
37.82"
(960.63mm)
5.36"
(136.14mm)
107ᵗʰ Driest Driest since: 2017 1931
17ᵗʰ Wettest Wettest since: 2012 2004
Jun 2017–May 2018
12-Month
47.80"
(1,214.12mm)
41.97"
(1,066.04mm)
5.83"
(148.08mm)
109ᵗʰ Driest Driest since: 2017 1931
15ᵗʰ Wettest Wettest since: 2012 2004
Dec 2016–May 2018
18-Month
71.69"
(1,820.93mm)
61.76"
(1,568.70mm)
9.93"
(252.23mm)
115ᵗʰ Driest Driest since: 2017 1931
8ᵗʰ Wettest Wettest since: 2012 2012
Jun 2016–May 2018
24-Month
92.27"
(2,343.66mm)
83.91"
(2,131.31mm)
8.36"
(212.35mm)
102ⁿᵈ Driest Driest since: 2017 1931
21ˢᵗ Wettest Wettest since: 2013 2005
Jun 2015–May 2018
36-Month
136.59"
(3,469.39mm)
125.93"
(3,198.62mm)
10.66"
(270.77mm)
101ˢᵗ Driest Driest since: 2017 1965
21ˢᵗ Wettest Wettest since: 2014 2005
Jun 2014–May 2018
48-Month
175.30"
(4,452.62mm)
167.92"
(4,265.17mm)
7.38"
(187.45mm)
86ᵗʰ Driest Driest since: 2017 1966
35ᵗʰ Wettest Wettest since: 2015 2007
Jun 2013–May 2018
60-Month
221.08"
(5,615.43mm)
209.84"
(5,329.94mm)
11.24"
(285.49mm)
95ᵗʰ Driest Driest since: 2017 1967
25ᵗʰ Wettest Wettest since: 2016 2008

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2018, retrieved on September 25, 2018 from https://www.ncdc.noaa.gov/cag/