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, April 1977

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
April 1977
1-Month
4.15"
(105.41mm)
3.64"
(92.46mm)
0.51"
(12.95mm)
86th Driest Driest since: 1976 1946
40th Wettest Wettest since: 1973 2011
Mar–Apr 1977
2-Month
9.44"
(239.78mm)
7.13"
(181.10mm)
2.31"
(58.68mm)
113th Driest Driest since: 1976 1915
13th Wettest Wettest since: 1964 2011
Feb–Apr 1977
3-Month
11.08"
(281.43mm)
9.73"
(247.14mm)
1.35"
(34.29mm)
97th Driest Driest since: 1976 1941
29th Wettest Wettest since: 1972 2011
Jan–Apr 1977
4-Month
12.58"
(319.53mm)
12.78"
(324.61mm)
-0.20"
(-5.08mm)
65th Driest Driest since: 1976 1941
61st Wettest Wettest since: 1975 2011
Dec 1976–Apr 1977
5-Month
14.59"
(370.59mm)
15.88"
(403.35mm)
-1.29"
(-32.76mm)
42nd Driest Driest since: 1971 1941
83rd Wettest Wettest since: 1976 2011
Nov 1976–Apr 1977
6-Month
15.54"
(394.72mm)
19.09"
(484.89mm)
-3.55"
(-90.17mm)
12th Driest Driest since: 1969 1931
113th Wettest Wettest since: 1976 1952
Oct 1976–Apr 1977
7-Month
22.45"
(570.23mm)
22.27"
(565.66mm)
0.18"
(4.57mm)
64th Driest Driest since: 1976 1925
61st Wettest Wettest since: 1974 2011
Sep 1976–Apr 1977
8-Month
26.55"
(674.37mm)
25.83"
(656.08mm)
0.72"
(18.29mm)
71st Driest Driest since: 1970 1931
54th Wettest Wettest since: 1976 2019
Aug 1976–Apr 1977
9-Month
29.99"
(761.75mm)
29.69"
(754.13mm)
0.30"
(7.62mm)
65th Driest Driest since: 1970 1931
60th Wettest Wettest since: 1976 2019
Jul 1976–Apr 1977
10-Month
34.37"
(873.00mm)
33.89"
(860.81mm)
0.48"
(12.19mm)
64th Driest Driest since: 1970 1931
61st Wettest Wettest since: 1976 2019
Jun 1976–Apr 1977
11-Month
39.12"
(993.65mm)
38.05"
(966.47mm)
1.07"
(27.18mm)
71st Driest Driest since: 1970 1931
54th Wettest Wettest since: 1976 2019
May 1976–Apr 1977
12-Month
42.60"
(1,082.04mm)
41.95"
(1,065.53mm)
0.65"
(16.51mm)
61st Driest Driest since: 1970 1931
64th Wettest Wettest since: 1976 2019
Nov 1975–Apr 1977
18-Month
60.19"
(1,528.83mm)
61.03"
(1,550.16mm)
-0.84"
(-21.33mm)
54th Driest Driest since: 1970 1931
70th Wettest Wettest since: 1976 2019
May 1975–Apr 1977
24-Month
90.73"
(2,304.54mm)
83.91"
(2,131.31mm)
6.82"
(173.23mm)
99th Driest Driest since: 1975 1966
25th Wettest Wettest since: 1976 2019
May 1974–Apr 1977
36-Month
134.90"
(3,426.46mm)
125.93"
(3,198.62mm)
8.97"
(227.84mm)
101st Driest Driest since: 1972 1967
22nd Wettest Wettest since: 1976 2005
May 1973–Apr 1977
48-Month
180.18"
(4,576.57mm)
167.93"
(4,265.42mm)
12.25"
(311.15mm)
103rd Driest Driest since: 1972 1966
19th Wettest Wettest since: 1976 2007
May 1972–Apr 1977
60-Month
232.27"
(5,899.66mm)
209.83"
(5,329.68mm)
22.44"
(569.98mm)
115th Driest Driest since: 1975 1967
6th Wettest Wettest since: 1976 2008

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on November 21, 2019 from https://www.ncdc.noaa.gov/cag/