Alta Loma Rainfall Forecast

Today 25 Oct
No Rain
Mon 26 Oct
No Rain
Tue 27 Oct
No Rain
Wed 28 Oct
No Rain
Thu 29 Oct
10%
Fri 30 Oct
20%
Sat 31 Oct
55%

Alta Loma Rainfall Statistics

October Rainfall

Ontario International Airport (4.3 miles)

Total Rainfall 2026
7.6 in
Daily Average 2026
0.03 in
Wettest Day 22 October, 2026
0.9 in
Wet Days 2026
26/298 (9%)
Total Rainfall September
0.6 in
Daily Average September
0.02 in
Wettest Day 6 September, 2026
0.6 in
Wet Days September
2/30 (7%)
Total Rainfall October
2 in
Daily Average October
0.1 in
Wettest Day 22 October, 2026
0.9 in
Wet Days October
5/25 (20%)

Climate (2021–2025)

Ontario International Airport (4.3 miles)

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

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