0in

Rain Today

Rain Last Hour
0in

Recorded at Hagerstown, Washington County Regional Airport Updated 37 mins ago (12.5 miles away)

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Real-Time Extremes

Hottest 87.7 °F
Choluteca, FL
Coldest -27.5 °F
Northway, Northway Airport, AK
Windiest 50.6mph
Mount Washington, NH
Wettest (Last Hour) 0.2in
San Juan, Luis Munoz Marin International Airport, PR
Most Humid 100%
Hobby Field Airport, OR
Least Humid 16%
Hobbs / Lea County, NM
Highest Pressure 1041.7 hPa
Windham, MT
Lowest Pressure 971 hPa
Narsarsuaq, ME

Trending Locations

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Mercersburg Rainfall Forecast

Today 13 Dec
45%
Sun 14 Dec
90%
Mon 15 Dec
10%
Tue 16 Dec
No Rain
Wed 17 Dec
5%
Thu 18 Dec
35%
Fri 19 Dec
70%

Mercersburg Rainfall Statistics

December Rainfall

Hagerstown, Washington County Regional Airport (12.4 miles)

Total Rainfall 2025
23.9in
Daily Average 2025
0.1in
Wettest Day 13 May, 2025
2in
Wet Days 2025
110/347 (32%)
Total Rainfall November
0.7in
Daily Average November
0.02in
Wettest Day 18 November, 2025
0.3in
Wet Days November
7/30 (23%)
Total Rainfall December
0.5in
Daily Average December
0.04in
Wettest Day 2 December, 2025
0.4in
Wet Days December
2/13 (15%)

Climate (2010–Present)

Hagerstown, Washington County Regional Airport (12.4 miles)

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Annual Average 2020–2024
30.5in
Monthly Average 2020–2025
2.5in
Daily Average 2020–2025
0.1in
Wettest Day 1 September, 2021
3.9in

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