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 1987

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 1987
1-Month
3.22"
(81.79mm)
3.93"
(99.82mm)
-0.71"
(-18.03mm)
41st Driest Driest since: 1986 1964
87th Wettest Wettest since: 1985 1989
Apr–May 1987
2-Month
7.68"
(195.07mm)
7.57"
(192.28mm)
0.11"
(2.79mm)
70th Driest Driest since: 1986 1926
58th Wettest Wettest since: 1984 2011
Ties: 1954
Mar–May 1987
3-Month
9.99"
(253.75mm)
11.06"
(280.92mm)
-1.07"
(-27.17mm)
48th Driest Driest since: 1986 1926
80th Wettest Wettest since: 1985 2011
Feb–May 1987
4-Month
10.73"
(272.54mm)
13.66"
(346.96mm)
-2.93"
(-74.42mm)
11th Driest Driest since: 1969 1941
117th Wettest Wettest since: 1986 2011
Jan–May 1987
5-Month
13.73"
(348.74mm)
16.71"
(424.43mm)
-2.98"
(-75.69mm)
12th Driest Driest since: 1985 1941
116th Wettest Wettest since: 1986 2011
Ties: 1991
Dec 1986–May 1987
6-Month
17.30"
(439.42mm)
19.81"
(503.17mm)
-2.51"
(-63.75mm)
23rd Driest Driest since: 1986 1941
104th Wettest Wettest since: 1984 2011
Nov 1986–May 1987
7-Month
22.35"
(567.69mm)
23.02"
(584.71mm)
-0.67"
(-17.02mm)
56th Driest Driest since: 1985 1934
71st Wettest Wettest since: 1986 1952
Oct 1986–May 1987
8-Month
25.73"
(653.54mm)
26.19"
(665.23mm)
-0.46"
(-11.69mm)
56th Driest Driest since: 1985 1925
71st Wettest Wettest since: 1986 2011
Ties: 2021
Sep 1986–May 1987
9-Month
28.55"
(725.17mm)
29.75"
(755.65mm)
-1.20"
(-30.48mm)
47th Driest Driest since: 1985 1941
80th Wettest Wettest since: 1986 2019
Aug 1986–May 1987
10-Month
32.16"
(816.86mm)
33.62"
(853.95mm)
-1.46"
(-37.09mm)
44th Driest Driest since: 1985 1931
83rd Wettest Wettest since: 1986 2019
Jul 1986–May 1987
11-Month
37.51"
(952.75mm)
37.82"
(960.63mm)
-0.31"
(-7.88mm)
54th Driest Driest since: 1985 1931
73rd Wettest Wettest since: 1986 2019
Jun 1986–May 1987
12-Month
42.22"
(1,072.39mm)
41.97"
(1,066.04mm)
0.25"
(6.35mm)
59th Driest Driest since: 1985 1931
68th Wettest Wettest since: 1986 2019
Dec 1985–May 1987
18-Month
59.08"
(1,500.63mm)
61.76"
(1,568.70mm)
-2.68"
(-68.07mm)
30th Driest Driest since: 1982 1931
96th Wettest Wettest since: 1986 2019
Jun 1985–May 1987
24-Month
84.92"
(2,156.97mm)
83.91"
(2,131.31mm)
1.01"
(25.66mm)
63rd Driest Driest since: 1986 1931
63rd Wettest Wettest since: 1985 2019
Jun 1984–May 1987
36-Month
124.96"
(3,173.98mm)
125.93"
(3,198.62mm)
-0.97"
(-24.64mm)
48th Driest Driest since: 1983 1965
77th Wettest Wettest since: 1986 2020
Jun 1983–May 1987
48-Month
171.81"
(4,363.97mm)
167.92"
(4,265.17mm)
3.89"
(98.80mm)
74th Driest Driest since: 1986 1966
50th Wettest Wettest since: 1981 2020
Jun 1982–May 1987
60-Month
213.96"
(5,434.58mm)
209.84"
(5,329.94mm)
4.12"
(104.64mm)
68th Driest Driest since: 1986 1967
55th Wettest Wettest since: 1982 2020
Ties: 1956

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 24, 2021 from https://www.ncdc.noaa.gov/cag/