Rancho Cucamonga Rainfall Forecast

Today 11 Apr
20%
Sun 12 Apr
80%
Mon 13 Apr
20%
Tue 14 Apr
No Rain
Wed 15 Apr
No Rain
Thu 16 Apr
No Rain
Fri 17 Apr
No Rain

Rancho Cucamonga Rainfall Statistics

April Rainfall

Ontario International Airport (3.7 miles)

Total Rainfall 2026
4.4in
Daily Average 2026
0.04in
Wettest Day 1 January, 2026
0.9in
Wet Days 2026
11/101 (11%)
Total Rainfall March
0.3in
Daily Average March
0.01in
Wettest Day 31 March, 2026
0.3in
Wet Days March
1/31 (3%)
Total Rainfall April
0.2in
Daily Average April
0.02in
Wettest Day 1 April, 2026
0.2in
Wet Days April
1/11 (9%)

Climate (2010–Present)

Ontario International Airport (3.7 miles)

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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

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