Chantilly Highlands Rainfall Forecast

Today 23 May
100%
Sun 24 May
90%
Mon 25 May
60%
Tue 26 May
55%
Wed 27 May
35%
Thu 28 May
15%
Fri 29 May
10%

Chantilly Highlands Rainfall Statistics

May Rainfall

Washington/Dulles International Airport, DC (1.9 miles)

Total Rainfall 2026
12.1in
Daily Average 2026
0.1in
Wettest Day 25 January, 2026
1.8in
Wet Days 2026
44/143 (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
1.7in
Daily Average May
0.1in
Wettest Day 20 May, 2026
0.9in
Wet Days May
9/23 (39%)

Climate (2010–Present)

Washington/Dulles International Airport, DC (1.9 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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