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, December 1991

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2018)
Wettest/Driest
Since
Record
December 1991
1-Month
3.61"
(91.69mm)
3.11"
(78.99mm)
0.50"
(12.70mm)
85th Driest Driest since: 1989 1955
40th Wettest Wettest since: 1990 1990
Ties: 1954
Nov–Dec 1991
2-Month
6.44"
(163.58mm)
6.29"
(159.77mm)
0.15"
(3.81mm)
67th Driest Driest since: 1989 1917
58th Wettest Wettest since: 1990 1972
Oct–Dec 1991
3-Month
8.42"
(213.87mm)
9.46"
(240.28mm)
-1.04"
(-26.41mm)
41st Driest Driest since: 1989 1924
84th Wettest Wettest since: 1990 1927
Sep–Dec 1991
4-Month
11.51"
(292.35mm)
13.04"
(331.22mm)
-1.53"
(-38.87mm)
37th Driest Driest since: 1988 1908
88th Wettest Wettest since: 1990 2018
Ties: 1994
Aug–Dec 1991
5-Month
14.57"
(370.08mm)
16.91"
(429.51mm)
-2.34"
(-59.43mm)
29th Driest Driest since: 1989 1930
96th Wettest Wettest since: 1990 2018
Jul–Dec 1991
6-Month
18.04"
(458.22mm)
21.10"
(535.94mm)
-3.06"
(-77.72mm)
22nd Driest Driest since: 1982 1930
103rd Wettest Wettest since: 1990 2018
Jun–Dec 1991
7-Month
19.63"
(498.60mm)
25.27"
(641.86mm)
-5.64"
(-143.26mm)
10th Driest Driest since: 1965 1930
115th Wettest Wettest since: 1990 2018
May–Dec 1991
8-Month
21.86"
(555.24mm)
29.19"
(741.43mm)
-7.33"
(-186.19mm)
4th Driest Driest since: 1964 1930
121st Wettest Wettest since: 1990 2018
Apr–Dec 1991
9-Month
25.01"
(635.25mm)
32.84"
(834.14mm)
-7.83"
(-198.89mm)
4th Driest Driest since: 1965 1930
121st Wettest Wettest since: 1990 2018
Mar–Dec 1991
10-Month
28.89"
(733.81mm)
36.33"
(922.78mm)
-7.44"
(-188.97mm)
5th Driest Driest since: 1965 1930
120th Wettest Wettest since: 1990 2011
Feb–Dec 1991
11-Month
30.61"
(777.49mm)
38.93"
(988.82mm)
-8.32"
(-211.33mm)
5th Driest Driest since: 1965 1930
120th Wettest Wettest since: 1990 2018
Jan–Dec 1991
12-Month
33.36"
(847.34mm)
41.98"
(1,066.29mm)
-8.62"
(-218.95mm)
4th Driest Driest since: 1963 1930
121st Wettest Wettest since: 1990 2018
Jul 1990–Dec 1991
18-Month
62.50"
(1,587.50mm)
63.09"
(1,602.49mm)
-0.59"
(-14.99mm)
48th Driest Driest since: 1988 1931
76th Wettest Wettest since: 1990 2018
Jan 1990–Dec 1991
24-Month
83.06"
(2,109.72mm)
83.92"
(2,131.57mm)
-0.86"
(-21.85mm)
50th Driest Driest since: 1989 1931
74th Wettest Wettest since: 1990 2018
Jan 1989–Dec 1991
36-Month
127.34"
(3,234.44mm)
125.86"
(3,196.84mm)
1.48"
(37.60mm)
63rd Driest Driest since: 1989 1965
60th Wettest Wettest since: 1990 2004
Jan 1988–Dec 1991
48-Month
163.24"
(4,146.30mm)
167.85"
(4,263.39mm)
-4.61"
(-117.09mm)
31st Driest Driest since: 1988 1966
91st Wettest Wettest since: 1990 2006
Jan 1987–Dec 1991
60-Month
203.91"
(5,179.31mm)
209.87"
(5,330.70mm)
-5.96"
(-151.39mm)
27th Driest Driest since: 1971 1966
94th Wettest Wettest since: 1990 2007

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on December 8, 2019 from https://www.ncdc.noaa.gov/cag/