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


Pennsylvania

Precipitation Rankings, May 1947

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 1947
1-Month
6.46"
(164.08mm)
3.93"
(99.82mm)
2.53"
(64.26mm)
121st Driest Driest since: 1945 1964
7th Wettest Wettest since: 1946 1989
Apr–May 1947
2-Month
10.36"
(263.14mm)
7.57"
(192.28mm)
2.79"
(70.86mm)
118th Driest Driest since: 1946 1926
10th Wettest Wettest since: 1929 2011
Mar–May 1947
3-Month
12.64"
(321.06mm)
11.06"
(280.92mm)
1.58"
(40.14mm)
97th Driest Driest since: 1946 1926
31st Wettest Wettest since: 1945 2011
Feb–May 1947
4-Month
13.99"
(355.35mm)
13.66"
(346.96mm)
0.33"
(8.39mm)
69th Driest Driest since: 1941 1941
59th Wettest Wettest since: 1946 2011
Ties: 1954
Jan–May 1947
5-Month
17.70"
(449.58mm)
16.71"
(424.43mm)
0.99"
(25.15mm)
83rd Driest Driest since: 1946 1941
45th Wettest Wettest since: 1945 2011
Dec 1946–May 1947
6-Month
20.04"
(509.02mm)
19.81"
(503.17mm)
0.23"
(5.85mm)
70th Driest Driest since: 1946 1941
57th Wettest Wettest since: 1945 2011
Nov 1946–May 1947
7-Month
21.40"
(543.56mm)
23.02"
(584.71mm)
-1.62"
(-41.15mm)
44th Driest Driest since: 1944 1934
83rd Wettest Wettest since: 1946 1952
Oct 1946–May 1947
8-Month
25.06"
(636.52mm)
26.19"
(665.23mm)
-1.13"
(-28.71mm)
43rd Driest Driest since: 1941 1925
84th Wettest Wettest since: 1946 2011
Sep 1946–May 1947
9-Month
28.40"
(721.36mm)
29.75"
(755.65mm)
-1.35"
(-34.29mm)
43rd Driest Driest since: 1944 1941
84th Wettest Wettest since: 1946 2019
Aug 1946–May 1947
10-Month
32.36"
(821.94mm)
33.62"
(853.95mm)
-1.26"
(-32.01mm)
46th Driest Driest since: 1944 1931
81st Wettest Wettest since: 1946 2019
Jul 1946–May 1947
11-Month
36.30"
(922.02mm)
37.82"
(960.63mm)
-1.52"
(-38.61mm)
46th Driest Driest since: 1944 1931
81st Wettest Wettest since: 1946 2019
Jun 1946–May 1947
12-Month
42.36"
(1,075.94mm)
41.97"
(1,066.04mm)
0.39"
(9.90mm)
61st Driest Driest since: 1945 1931
66th Wettest Wettest since: 1946 2019
Dec 1945–May 1947
18-Month
60.45"
(1,535.43mm)
61.76"
(1,568.70mm)
-1.31"
(-33.27mm)
49th Driest Driest since: 1945 1931
77th Wettest Wettest since: 1946 2019
Jun 1945–May 1947
24-Month
89.00"
(2,260.60mm)
83.91"
(2,131.31mm)
5.09"
(129.29mm)
94th Driest Driest since: 1946 1931
32nd Wettest Wettest since: 1943 2019
Ties: 1984
Jun 1944–May 1947
36-Month
131.25"
(3,333.75mm)
125.93"
(3,198.62mm)
5.32"
(135.13mm)
86th Driest Driest since: 1946 1965
39th Wettest Wettest since: 1938 2020
Jun 1943–May 1947
48-Month
169.25"
(4,298.95mm)
167.92"
(4,265.17mm)
1.33"
(33.78mm)
62nd Driest Driest since: 1944 1966
62nd Wettest Wettest since: 1946 2020
Jun 1942–May 1947
60-Month
217.68"
(5,529.07mm)
209.84"
(5,329.94mm)
7.84"
(199.13mm)
88th Driest Driest since: 1946 1967
35th Wettest Wettest since: 1916 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2021, retrieved on October 16, 2021 from https://www.ncdc.noaa.gov/cag/