Mason Neck State Park Rainfall Forecast

Today 2 Sep
35%
Wed 3 Sep
5%
Thu 4 Sep
25%
Fri 5 Sep
35%
Sat 6 Sep
30%
Sun 7 Sep
25%
Mon 8 Sep
5%

Mason Neck State Park Rainfall Statistics

September Rainfall

Fort Belvoir (4.3 miles)

Total Rainfall 2025
22.7in
Daily Average 2025
0.1in
Wettest Day 31 July, 2025
1.6in
Wet Days 2025
75/245 (31%)
Total Rainfall August
0.4in
Daily Average August
0.02in
Wettest Day 14 August, 2025
0.1in
Wet Days August
6/31 (19%)
Total Rainfall September
–
Daily Average September
–
Wettest Day 2 September, 2025
–
Wet Days September
–

Climate (2010–Present)

Fort Belvoir (4.3 miles)

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Annual Average 2020–2024
34.8in
Monthly Average 2020–2025
3in
Daily Average 2020–2025
0.1in
Wettest Day 22 December, 2021
3.2in

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