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, October 2021

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
October 2021
1-Month
4.61"
(117.09mm)
3.17"
(80.52mm)
1.44"
(36.57mm)
100th Driest Driest since: 2020 1963
28th Wettest Wettest since: 2019 1976
Sep–Oct 2021
2-Month
11.59"
(294.39mm)
6.75"
(171.45mm)
4.84"
(122.94mm)
124th Driest Driest since: 2020 1963
4th Wettest Wettest since: 2018 2011
Aug–Oct 2021
3-Month
17.48"
(443.99mm)
10.62"
(269.75mm)
6.86"
(174.24mm)
125th Driest Driest since: 2020 1930
3rd Wettest Wettest since: 2018 2011
Jul–Oct 2021
4-Month
23.72"
(602.49mm)
14.81"
(376.17mm)
8.91"
(226.32mm)
124th Driest Driest since: 2020 1930
4th Wettest Wettest since: 2018 2018
Jun–Oct 2021
5-Month
27.26"
(692.40mm)
18.98"
(482.09mm)
8.28"
(210.31mm)
123rd Driest Driest since: 2020 1930
5th Wettest Wettest since: 2018 2018
May–Oct 2021
6-Month
31.54"
(801.12mm)
22.91"
(581.91mm)
8.63"
(219.21mm)
123rd Driest Driest since: 2020 1930
5th Wettest Wettest since: 2018 2018
Apr–Oct 2021
7-Month
34.33"
(871.98mm)
26.55"
(674.37mm)
7.78"
(197.61mm)
122nd Driest Driest since: 2020 1963
6th Wettest Wettest since: 2018 2018
Mar–Oct 2021
8-Month
37.14"
(943.36mm)
30.04"
(763.02mm)
7.10"
(180.34mm)
122nd Driest Driest since: 2020 1930
6th Wettest Wettest since: 2018 2011
Feb–Oct 2021
9-Month
40.16"
(1,020.06mm)
32.64"
(829.06mm)
7.52"
(191.00mm)
120th Driest Driest since: 2020 1963
8th Wettest Wettest since: 2019 2011
Jan–Oct 2021
10-Month
41.96"
(1,065.78mm)
35.69"
(906.53mm)
6.27"
(159.25mm)
116th Driest Driest since: 2020 1963
12th Wettest Wettest since: 2019 2018
Dec 2020–Oct 2021
11-Month
46.40"
(1,178.56mm)
38.79"
(985.27mm)
7.61"
(193.29mm)
116th Driest Driest since: 2020 1963
11th Wettest Wettest since: 2019 2011
Nov 2020–Oct 2021
12-Month
49.37"
(1,254.00mm)
42.00"
(1,066.80mm)
7.37"
(187.20mm)
118th Driest Driest since: 2020 1963
9th Wettest Wettest since: 2019 2011
May 2020–Oct 2021
18-Month
70.04"
(1,779.02mm)
64.86"
(1,647.44mm)
5.18"
(131.58mm)
98th Driest Driest since: 2016 1963
29th Wettest Wettest since: 2020 2019
Nov 2019–Oct 2021
24-Month
91.37"
(2,320.80mm)
83.94"
(2,132.08mm)
7.43"
(188.72mm)
101st Driest Driest since: 2017 1964
25th Wettest Wettest since: 2020 2019
Nov 2018–Oct 2021
36-Month
146.32"
(3,716.53mm)
125.92"
(3,198.37mm)
20.40"
(518.16mm)
118th Driest Driest since: 2018 1965
7th Wettest Wettest since: 2020 2019
Nov 2017–Oct 2021
48-Month
204.63"
(5,197.60mm)
167.91"
(4,264.91mm)
36.72"
(932.69mm)
123rd Driest Driest since: 2020 1966
1st Wettest Wettest to Date 2021
Nov 2016–Oct 2021
60-Month
251.76"
(6,394.70mm)
209.89"
(5,331.21mm)
41.87"
(1,063.49mm)
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, Precipitation, published September 2022, retrieved on September 25, 2022 from https://www.ncdc.noaa.gov/cag/