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 2021. For more information, please see Climatological Rankings.


Pennsylvania

Precipitation Rankings, April 2020

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
April 2020
1-Month
4.51"
(114.55mm)
3.64"
(92.46mm)
0.87"
(22.09mm)
106th Driest Driest since: 2018 1946
22nd Wettest Wettest since: 2019 2011
Mar–Apr 2020
2-Month
8.78"
(223.01mm)
7.13"
(181.10mm)
1.65"
(41.91mm)
108th Driest Driest since: 2019 1915
20th Wettest Wettest since: 2011 2011
Feb–Apr 2020
3-Month
12.13"
(308.10mm)
9.73"
(247.14mm)
2.40"
(60.96mm)
113th Driest Driest since: 2019 1941
15th Wettest Wettest since: 2018 2011
Jan–Apr 2020
4-Month
15.18"
(385.57mm)
12.78"
(324.61mm)
2.40"
(60.96mm)
105th Driest Driest since: 2017 1941
23rd Wettest Wettest since: 2019 2011
Dec 2019–Apr 2020
5-Month
18.89"
(479.81mm)
15.88"
(403.35mm)
3.01"
(76.46mm)
108th Driest Driest since: 2018 1941
19th Wettest Wettest since: 2019 2011
Nov 2019–Apr 2020
6-Month
21.33"
(541.78mm)
19.09"
(484.89mm)
2.24"
(56.89mm)
99th Driest Driest since: 2018 1931
28th Wettest Wettest since: 2019 1952
Oct 2019–Apr 2020
7-Month
26.94"
(684.28mm)
22.26"
(565.40mm)
4.68"
(118.88mm)
112th Driest Driest since: 2018 1925
15th Wettest Wettest since: 2019 2011
Sep 2019–Apr 2020
8-Month
29.07"
(738.38mm)
25.83"
(656.08mm)
3.24"
(82.30mm)
100th Driest Driest since: 2018 1931
27th Wettest Wettest since: 2019 2019
Ties: 1976
Aug 2019–Apr 2020
9-Month
32.78"
(832.61mm)
29.69"
(754.13mm)
3.09"
(78.48mm)
95th Driest Driest since: 2018 1931
32nd Wettest Wettest since: 2019 2019
Jul 2019–Apr 2020
10-Month
38.40"
(975.36mm)
33.89"
(860.81mm)
4.51"
(114.55mm)
105th Driest Driest since: 2018 1931
22nd Wettest Wettest since: 2019 2019
Jun 2019–Apr 2020
11-Month
44.22"
(1,123.19mm)
38.05"
(966.47mm)
6.17"
(156.72mm)
111th Driest Driest since: 2018 1931
16th Wettest Wettest since: 2019 2019
May 2019–Apr 2020
12-Month
50.74"
(1,288.80mm)
41.95"
(1,065.53mm)
8.79"
(223.27mm)
120th Driest Driest since: 2018 1931
7th Wettest Wettest since: 2019 2019
Nov 2018–Apr 2020
18-Month
76.28"
(1,937.51mm)
61.03"
(1,550.16mm)
15.25"
(387.35mm)
122nd Driest Driest since: 2018 1931
4th Wettest Wettest since: 2019 2019
May 2018–Apr 2020
24-Month
114.03"
(2,896.36mm)
83.91"
(2,131.31mm)
30.12"
(765.05mm)
125th Driest Driest since: 2019 1966
1st Wettest Wettest to Date 2020
May 2017–Apr 2020
36-Month
162.29"
(4,122.17mm)
125.93"
(3,198.62mm)
36.36"
(923.55mm)
124th Driest Driest since: 2019 1967
1st Wettest Wettest to Date 2020
May 2016–Apr 2020
48-Month
204.69"
(5,199.13mm)
167.93"
(4,265.42mm)
36.76"
(933.71mm)
123rd Driest Driest since: 2019 1966
1st Wettest Wettest to Date 2020
May 2015–Apr 2020
60-Month
247.70"
(6,291.58mm)
209.83"
(5,329.68mm)
37.87"
(961.90mm)
122nd Driest Driest since: 2019 1967
1st Wettest Wettest to Date 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2021, retrieved on November 27, 2021 from https://www.ncdc.noaa.gov/cag/