Chantilly Rainfall Forecast

Today 3 May
5%
Mon 4 May
5%
Tue 5 May
15%
Wed 6 May
80%
Thu 7 May
85%
Fri 8 May
30%
Sat 9 May
45%

Chantilly Rainfall Statistics

May Rainfall

Washington/Dulles International Airport, DC (2.5 miles)

Total Rainfall 2026
9.6in
Daily Average 2026
0.1in
Wettest Day 25 January, 2026
1.8in
Wet Days 2026
32/123 (26%)
Total Rainfall April
0.9in
Daily Average April
0.05in
Wettest Day 5 April, 2026
0.6in
Wet Days April
4/30 (13%)
Total Rainfall May
–
Daily Average May
–
Wettest Day 3 May, 2026
–
Wet Days May
–

Climate (2010–Present)

Washington/Dulles International Airport, DC (2.5 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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