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 2004

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 2004
1-Month
5.44"
(138.18mm)
3.93"
(99.82mm)
1.51"
(38.36mm)
104th Driest Driest since: 2003 1964
24th Wettest Wettest since: 2002 1989
Apr–May 2004
2-Month
10.31"
(261.87mm)
7.57"
(192.28mm)
2.74"
(69.59mm)
117th Driest Driest since: 2003 1926
11th Wettest Wettest since: 1984 2011
Mar–May 2004
3-Month
13.15"
(334.01mm)
11.06"
(280.92mm)
2.09"
(53.09mm)
108th Driest Driest since: 2003 1926
20th Wettest Wettest since: 2002 2011
Feb–May 2004
4-Month
15.41"
(391.41mm)
13.66"
(346.96mm)
1.75"
(44.45mm)
100th Driest Driest since: 2003 1941
28th Wettest Wettest since: 1998 2011
Jan–May 2004
5-Month
18.70"
(474.98mm)
16.71"
(424.43mm)
1.99"
(50.55mm)
99th Driest Driest since: 2003 1941
29th Wettest Wettest since: 1998 2011
Ties: 1901
Dec 2003–May 2004
6-Month
22.87"
(580.90mm)
19.81"
(503.17mm)
3.06"
(77.73mm)
108th Driest Driest since: 2003 1941
19th Wettest Wettest since: 1998 2011
Nov 2003–May 2004
7-Month
27.17"
(690.12mm)
23.02"
(584.71mm)
4.15"
(105.41mm)
111th Driest Driest since: 2003 1934
16th Wettest Wettest since: 1998 1952
Oct 2003–May 2004
8-Month
31.36"
(796.54mm)
26.19"
(665.23mm)
5.17"
(131.31mm)
114th Driest Driest since: 2003 1925
13th Wettest Wettest since: 1996 2011
Sep 2003–May 2004
9-Month
38.49"
(977.65mm)
29.75"
(755.65mm)
8.74"
(222.00mm)
123rd Driest Driest since: 2003 1941
4th Wettest Wettest since: 1908 2019
Aug 2003–May 2004
10-Month
44.04"
(1,118.62mm)
33.62"
(853.95mm)
10.42"
(264.67mm)
124th Driest Driest since: 2003 1931
3rd Wettest Wettest to Date 2019
Jul 2003–May 2004
11-Month
49.68"
(1,261.87mm)
37.82"
(960.63mm)
11.86"
(301.24mm)
125th Driest Driest since: 2003 1931
2nd Wettest Wettest to Date 2019
Jun 2003–May 2004
12-Month
55.79"
(1,417.07mm)
41.97"
(1,066.04mm)
13.82"
(351.03mm)
125th Driest Driest since: 2003 1931
2nd Wettest Wettest to Date 2019
Dec 2002–May 2004
18-Month
76.08"
(1,932.43mm)
61.76"
(1,568.70mm)
14.32"
(363.73mm)
123rd Driest Driest since: 2003 1931
3rd Wettest Wettest to Date 2019
Jun 2002–May 2004
24-Month
98.66"
(2,505.96mm)
83.91"
(2,131.31mm)
14.75"
(374.65mm)
121st Driest Driest since: 2003 1931
5th Wettest Wettest to Date 2019
Jun 2001–May 2004
36-Month
136.84"
(3,475.74mm)
125.93"
(3,198.62mm)
10.91"
(277.12mm)
102nd Driest Driest since: 2003 1965
23rd Wettest Wettest since: 1998 2020
Jun 2000–May 2004
48-Month
173.84"
(4,415.54mm)
167.92"
(4,265.17mm)
5.92"
(150.37mm)
81st Driest Driest since: 2003 1966
43rd Wettest Wettest since: 1999 2020
Jun 1999–May 2004
60-Month
214.96"
(5,459.98mm)
209.84"
(5,329.94mm)
5.12"
(130.04mm)
73rd Driest Driest since: 2003 1967
50th Wettest Wettest since: 2000 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2021, retrieved on September 25, 2021 from https://www.ncdc.noaa.gov/cag/