Reston Rainfall Forecast

Today 20 May
70%
Thu 21 May
95%
Fri 22 May
80%
Sat 23 May
90%
Sun 24 May
80%
Mon 25 May
60%
Tue 26 May
55%

Reston Rainfall Statistics

May Rainfall

Washington/Dulles International Airport, DC (5 miles)

Total Rainfall 2026
11.2in
Daily Average 2026
0.1in
Wettest Day 25 January, 2026
1.8in
Wet Days 2026
43/140 (31%)
Total Rainfall April
1.7in
Daily Average April
0.1in
Wettest Day 5 April, 2026
0.6in
Wet Days April
7/30 (23%)
Total Rainfall May
0.9in
Daily Average May
0.05in
Wettest Day 13 May, 2026
0.4in
Wet Days May
8/20 (40%)

Climate (2010–Present)

Washington/Dulles International Airport, DC (5 miles)

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Annual Average 2021–2025
34.9in
Monthly Average 2021–2026
2.9in
Daily Average 2021–2026
0.1in
Wettest Day 25 October, 2021
2.4in

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