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 2021. For more information, please see Climatological Rankings.


Pennsylvania

Precipitation Rankings, August 2021

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
August 2021
1-Month
5.85"
(148.59mm)
3.87"
(98.30mm)
1.98"
(50.29mm)
118th Driest Driest since: 2020 1930
10th Wettest Wettest since: 2018 1955
Jul–Aug 2021
2-Month
12.10"
(307.34mm)
8.05"
(204.47mm)
4.05"
(102.87mm)
125th Driest Driest since: 2020 1930
3rd Wettest Wettest since: 2018 2018
Jun–Aug 2021
3-Month
15.64"
(397.26mm)
12.22"
(310.39mm)
3.42"
(86.87mm)
117th Driest Driest since: 2020 1966
11th Wettest Wettest since: 2018 2018
May–Aug 2021
4-Month
19.92"
(505.97mm)
16.15"
(410.21mm)
3.77"
(95.76mm)
110th Driest Driest since: 2020 1966
18th Wettest Wettest since: 2019 2018
Apr–Aug 2021
5-Month
22.72"
(577.09mm)
19.79"
(502.67mm)
2.93"
(74.42mm)
102nd Driest Driest since: 2020 1966
26th Wettest Wettest since: 2019 2018
Mar–Aug 2021
6-Month
25.54"
(648.72mm)
23.29"
(591.57mm)
2.25"
(57.15mm)
97th Driest Driest since: 2020 1966
31st Wettest Wettest since: 2019 2011
Feb–Aug 2021
7-Month
28.55"
(725.17mm)
25.89"
(657.61mm)
2.66"
(67.56mm)
100th Driest Driest since: 2020 1995
28th Wettest Wettest since: 2019 2018
Jan–Aug 2021
8-Month
30.35"
(770.89mm)
28.94"
(735.08mm)
1.41"
(35.81mm)
84th Driest Driest since: 2020 1963
44th Wettest Wettest since: 2019 2018
Dec 2020–Aug 2021
9-Month
34.79"
(883.67mm)
32.03"
(813.56mm)
2.76"
(70.11mm)
94th Driest Driest since: 2020 1966
33rd Wettest Wettest since: 2019 2018
Ties: 2009
Nov 2020–Aug 2021
10-Month
37.76"
(959.10mm)
35.24"
(895.10mm)
2.52"
(64.00mm)
91st Driest Driest since: 2020 1966
36th Wettest Wettest since: 2019 2019
Ties: 2006
Oct 2020–Aug 2021
11-Month
41.39"
(1,051.31mm)
38.42"
(975.87mm)
2.97"
(75.44mm)
94th Driest Driest since: 2016 1925
33rd Wettest Wettest since: 2020 2019
Sep 2020–Aug 2021
12-Month
43.85"
(1,113.79mm)
41.98"
(1,066.29mm)
1.87"
(47.50mm)
80th Driest Driest since: 2020 1965
47th Wettest Wettest since: 2019 2019
Mar 2020–Aug 2021
18-Month
67.23"
(1,707.64mm)
65.21"
(1,656.33mm)
2.02"
(51.31mm)
79th Driest Driest since: 2016 1966
48th Wettest Wettest since: 2020 2019
Sep 2019–Aug 2021
24-Month
87.52"
(2,223.01mm)
83.89"
(2,130.81mm)
3.63"
(92.20mm)
81st Driest Driest since: 2016 1966
45th Wettest Wettest since: 2020 2019
Sep 2018–Aug 2021
36-Month
147.89"
(3,756.41mm)
125.89"
(3,197.61mm)
22.00"
(558.80mm)
120th Driest Driest since: 2018 1966
5th Wettest Wettest since: 2020 2019
Sep 2017–Aug 2021
48-Month
200.19"
(5,084.83mm)
167.87"
(4,263.90mm)
32.32"
(820.93mm)
121st Driest Driest since: 2018 1966
3rd Wettest Wettest since: 2020 2020
Sep 2016–Aug 2021
60-Month
248.03"
(6,299.96mm)
209.80"
(5,328.92mm)
38.23"
(971.04mm)
122nd Driest Driest since: 2020 1966
1st Wettest Wettest to Date 2021

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2021, retrieved on December 3, 2021 from https://www.ncdc.noaa.gov/cag/