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Rain Today in Ontario, CA: How Much Rain Fell — Last 24 Hour Rainfall Totals
Measured from radar and rain gauges by Precip.
0.00" of rain in Ontario, CA in the last 24 hours
Tue, Nov 3 total: 0.00"
- Past 7 days
- 0.54"
- 2026 so far
- 8.87" 7.7% below average
- Last rain
- 0.52" 2 days ago Nov 1, 2:00 AM - 1:00 PM UTC
- Your exact spot
- Rain varies block by block Pin your yard or field →
Precip measured 0.00" of rain in Ontario, CA over the last 24 hours and 0.54" over the past 7 days. So far in 2026, Ontario, CA has received 8.87" of rain, 7.7% below average (normal to date: 9.61").
Daily Rainfall Totals in Ontario, CA (Last 7 Days)
Observed 24-hour daily precipitation totals measured by Precip
Monthly Rainfall Totals in Ontario, CA (2026)
Accumulated monthly rainfall compared to 30-year normal averages
| Month | 2026 Total | 30-Yr Normal | vs. Normal |
|---|---|---|---|
| January | 1.44" | 2.75" | −1.30" (−47%) |
| February | 3.13" | 3.19" | −0.06" (−2%) |
| March | 0.31" | 2.01" | −1.70" (−85%) |
| April | 0.46" | 0.64" | −0.18" (−27%) |
| May | 0.18" | 0.26" | −0.09" (−32%) |
| June | 0.00" | 0.08" | −0.08" (−100%) |
| July | 0.00" | 0.04" | −0.04" (−100%) |
| August | 0.00" | 0.02" | −0.02" (−100%) |
| September | 0.71" | 0.09" | +0.61" (+652%) |
| October | 2.61" | 0.49" | +2.12" (+433%) |
| November (to date) | 0.04" | 0.05" | −0.01" (−23%) |
| 2026 YTD Total | 8.87" | 9.61" | −0.74" (7.7% below average) |
Rainfall Totals vs Normals (30 Year Average)
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