Ontario Rainfall Forecast
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Ontario Rainfall Statistics
January Rainfall
Ontario International Airport (3.7 miles)
Total Rainfall January
1inDaily Average January
0.1inWettest Day 1 January, 2026
0.9inWet Days January
4/13 (31%)
Climate (2010–Present)
Ontario International Airport (3.7 miles)
Annual Average 2021–2025
13.5inMonthly Average 2021–2025
1.1inDaily Average 2021–2026
0.04inWettest Day 5 February, 2024
3.6in