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


Pennsylvania

Precipitation Rankings, May 1939

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 1939
1-Month
1.60"
(40.64mm)
3.93"
(99.82mm)
-2.33"
(-59.18mm)
3rd Driest Driest since: 1926 1964
125th Wettest Wettest since: 1938 1989
Apr–May 1939
2-Month
5.11"
(129.79mm)
7.57"
(192.28mm)
-2.46"
(-62.49mm)
7th Driest Driest since: 1926 1926
121st Wettest Wettest since: 1938 2011
Mar–May 1939
3-Month
8.82"
(224.03mm)
11.06"
(280.92mm)
-2.24"
(-56.89mm)
20th Driest Driest since: 1935 1926
108th Wettest Wettest since: 1938 2011
Feb–May 1939
4-Month
13.22"
(335.79mm)
13.66"
(346.96mm)
-0.44"
(-11.17mm)
59th Driest Driest since: 1938 1941
69th Wettest Wettest since: 1937 2011
Jan–May 1939
5-Month
16.39"
(416.31mm)
16.71"
(424.43mm)
-0.32"
(-8.12mm)
61st Driest Driest since: 1938 1941
67th Wettest Wettest since: 1937 2011
Ties: 1907
Dec 1938–May 1939
6-Month
18.97"
(481.84mm)
19.81"
(503.17mm)
-0.84"
(-21.33mm)
52nd Driest Driest since: 1938 1941
75th Wettest Wettest since: 1937 2011
Nov 1938–May 1939
7-Month
22.15"
(562.61mm)
23.02"
(584.71mm)
-0.87"
(-22.10mm)
54th Driest Driest since: 1938 1934
73rd Wettest Wettest since: 1937 1952
Oct 1938–May 1939
8-Month
23.89"
(606.81mm)
26.19"
(665.23mm)
-2.30"
(-58.42mm)
31st Driest Driest since: 1935 1925
96th Wettest Wettest since: 1938 2011
Sep 1938–May 1939
9-Month
28.75"
(730.25mm)
29.75"
(755.65mm)
-1.00"
(-25.40mm)
51st Driest Driest since: 1938 1941
76th Wettest Wettest since: 1937 2019
Aug 1938–May 1939
10-Month
31.55"
(801.37mm)
33.62"
(853.95mm)
-2.07"
(-52.58mm)
36th Driest Driest since: 1934 1931
91st Wettest Wettest since: 1938 2019
Jul 1938–May 1939
11-Month
36.19"
(919.23mm)
37.82"
(960.63mm)
-1.63"
(-41.40mm)
43rd Driest Driest since: 1934 1931
84th Wettest Wettest since: 1938 2019
Jun 1938–May 1939
12-Month
41.15"
(1,045.21mm)
41.97"
(1,066.04mm)
-0.82"
(-20.83mm)
50th Driest Driest since: 1935 1931
77th Wettest Wettest since: 1938 2019
Dec 1937–May 1939
18-Month
59.12"
(1,501.65mm)
61.76"
(1,568.70mm)
-2.64"
(-67.05mm)
31st Driest Driest since: 1935 1931
95th Wettest Wettest since: 1938 2019
Jun 1937–May 1939
24-Month
84.21"
(2,138.93mm)
83.91"
(2,131.31mm)
0.30"
(7.62mm)
57th Driest Driest since: 1935 1931
69th Wettest Wettest since: 1938 2019
Jun 1936–May 1939
36-Month
128.67"
(3,268.22mm)
125.93"
(3,198.62mm)
2.74"
(69.60mm)
68th Driest Driest since: 1936 1965
57th Wettest Wettest since: 1938 2020
Jun 1935–May 1939
48-Month
173.67"
(4,411.22mm)
167.92"
(4,265.17mm)
5.75"
(146.05mm)
80th Driest Driest since: 1938 1966
44th Wettest Wettest since: 1930 2020
Jun 1934–May 1939
60-Month
214.44"
(5,446.78mm)
209.84"
(5,329.94mm)
4.60"
(116.84mm)
70th Driest Driest since: 1938 1967
53rd Wettest Wettest since: 1930 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 24, 2022 from https://www.ncdc.noaa.gov/cag/