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 2022. For more information, please see Climatological Rankings.


Pennsylvania

Precipitation Rankings, August 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 1999
1-Month
3.67"
(93.22mm)
3.87"
(98.30mm)
-0.20"
(-5.08mm)
59th Driest Driest since: 1998 1930
70th Wettest Wettest since: 1997 1955
Ties: 1973
Jul–Aug 1999
2-Month
6.29"
(159.77mm)
8.05"
(204.47mm)
-1.76"
(-44.70mm)
23rd Driest Driest since: 1998 1930
106th Wettest Wettest since: 1997 2018
Jun–Aug 1999
3-Month
8.66"
(219.96mm)
12.22"
(310.39mm)
-3.56"
(-90.43mm)
6th Driest Driest since: 1991 1966
123rd Wettest Wettest since: 1998 2018
May–Aug 1999
4-Month
11.22"
(284.99mm)
16.15"
(410.21mm)
-4.93"
(-125.22mm)
7th Driest Driest since: 1991 1966
122nd Wettest Wettest since: 1998 2018
Apr–Aug 1999
5-Month
15.18"
(385.57mm)
19.79"
(502.67mm)
-4.61"
(-117.10mm)
8th Driest Driest since: 1991 1966
121st Wettest Wettest since: 1998 2018
Mar–Aug 1999
6-Month
18.64"
(473.46mm)
23.29"
(591.57mm)
-4.65"
(-118.11mm)
10th Driest Driest since: 1995 1966
119th Wettest Wettest since: 1998 2011
Feb–Aug 1999
7-Month
20.54"
(521.72mm)
25.89"
(657.61mm)
-5.35"
(-135.89mm)
8th Driest Driest since: 1995 1995
121st Wettest Wettest since: 1998 2018
Jan–Aug 1999
8-Month
26.38"
(670.05mm)
28.94"
(735.08mm)
-2.56"
(-65.03mm)
23rd Driest Driest since: 1997 1963
106th Wettest Wettest since: 1998 2018
Dec 1998–Aug 1999
9-Month
27.84"
(707.14mm)
32.03"
(813.56mm)
-4.19"
(-106.42mm)
15th Driest Driest since: 1995 1966
113th Wettest Wettest since: 1998 2018
Ties: 1944
Nov 1998–Aug 1999
10-Month
29.03"
(737.36mm)
35.24"
(895.10mm)
-6.21"
(-157.74mm)
7th Driest Driest since: 1966 1966
121st Wettest Wettest since: 1998 2019
Oct 1998–Aug 1999
11-Month
32.11"
(815.59mm)
38.42"
(975.87mm)
-6.31"
(-160.28mm)
9th Driest Driest since: 1995 1925
119th Wettest Wettest since: 1998 2019
Sep 1998–Aug 1999
12-Month
34.24"
(869.70mm)
41.98"
(1,066.29mm)
-7.74"
(-196.59mm)
6th Driest Driest since: 1995 1965
122nd Wettest Wettest since: 1998 2019
Mar 1998–Aug 1999
18-Month
58.80"
(1,493.52mm)
65.21"
(1,656.33mm)
-6.41"
(-162.81mm)
14th Driest Driest since: 1992 1966
114th Wettest Wettest since: 1998 2019
Sep 1997–Aug 1999
24-Month
80.29"
(2,039.37mm)
83.89"
(2,130.81mm)
-3.60"
(-91.44mm)
29th Driest Driest since: 1992 1966
98th Wettest Wettest since: 1998 2019
Sep 1996–Aug 1999
36-Month
126.66"
(3,217.16mm)
125.89"
(3,197.61mm)
0.77"
(19.55mm)
63rd Driest Driest since: 1993 1966
63rd Wettest Wettest since: 1998 2019
Sep 1995–Aug 1999
48-Month
177.20"
(4,500.88mm)
167.87"
(4,263.90mm)
9.33"
(236.98mm)
94th Driest Driest since: 1998 1966
31st Wettest Wettest since: 1997 2020
Sep 1994–Aug 1999
60-Month
210.92"
(5,357.37mm)
209.80"
(5,328.92mm)
1.12"
(28.45mm)
56th Driest Driest since: 1995 1966
68th Wettest Wettest since: 1998 2021

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on October 5, 2022 from https://www.ncdc.noaa.gov/cag/