Ontario International Airport Rainfall Forecast

Today 2 May
No Rain
Sun 3 May
5%
Mon 4 May
30%
Tue 5 May
10%
Wed 6 May
No Rain
Thu 7 May
No Rain
Fri 8 May
No Rain

Ontario International Airport Rainfall Statistics

May Rainfall

Ontario International Airport (1.2 miles)

Total Rainfall 2026
4.8in
Daily Average 2026
0.04in
Wettest Day 1 January, 2026
0.9in
Wet Days 2026
13/122 (11%)
Total Rainfall April
0.6in
Daily Average April
0.03in
Wettest Day 12 April, 2026
0.3in
Wet Days April
3/30 (10%)
Total Rainfall May
–
Daily Average May
–
Wettest Day 2 May, 2026
–
Wet Days May
–

Climate (2010–Present)

Ontario International Airport (1.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

Annual Average 2021–2025
13.5in
Monthly Average 2021–2026
1.1in
Daily Average 2021–2026
0.04in
Wettest Day 5 February, 2024
3.6in

Get WillyWeather+ to remove ads