Fontana Rainfall Forecast

Today 18 May
5%
Mon 19 May
No Rain
Tue 20 May
No Rain
Wed 21 May
No Rain
Thu 22 May
No Rain
Fri 23 May
No Rain
Sat 24 May
No Rain

Fontana Rainfall Statistics

May Rainfall

Ontario International Airport (8.1 miles)

Total Rainfall 2025
6in
Daily Average 2025
0.04in
Wettest Day 13 February, 2025
1.9in
Wet Days 2025
22/138 (16%)
Total Rainfall April
0.3in
Daily Average April
0.01in
Wettest Day 26 April, 2025
0.3in
Wet Days April
2/30 (7%)
Total Rainfall May
0.2in
Daily Average May
0.02in
Wettest Day 5 May, 2025
0.2in
Wet Days May
2/18 (11%)

Climate (2010–Present)

Ontario International Airport (8.1 miles)

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Annual Average 2020–2024
12.9in
Monthly Average 2020–2025
1in
Daily Average 2020–2025
0.03in
Wettest Day 5 February, 2024
3.6in

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