Fairfax Rainfall Forecast

Today 20 May
5%
Wed 21 May
95%
Thu 22 May
90%
Fri 23 May
35%
Sat 24 May
10%
Sun 25 May
15%
Mon 26 May
30%

Fairfax Rainfall Statistics

May Rainfall

Washington/Dulles International Airport, DC (9.3 miles)

Total Rainfall 2025
11.2in
Daily Average 2025
0.1in
Wettest Day 13 May, 2025
1.7in
Wet Days 2025
44/140 (31%)
Total Rainfall April
2in
Daily Average April
0.1in
Wettest Day 11 April, 2025
0.5in
Wet Days April
11/30 (37%)
Total Rainfall May
3.3in
Daily Average May
0.2in
Wettest Day 13 May, 2025
1.7in
Wet Days May
11/20 (55%)

Climate (2010–Present)

Washington/Dulles International Airport, DC (9.3 miles)

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Annual Average 2020–2024
38.7in
Monthly Average 2020–2025
3.1in
Daily Average 2020–2025
0.1in
Wettest Day 25 October, 2021
2.4in

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