Climate Ontario - California
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 65 | 66 | 70 | 74 | 79 | 85 |
| Average low in ºF Av. low Lo | 44 | 45 | 47 | 51 | 56 | 59 |
| Av. precipitation in inch Av. precip. Pre. | 3.31 | 3.39 | 2.32 | 0.94 | 0.30 | 0.12 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 92 | 94 | 89 | 81 | 73 | 66 |
| Average low in ºF Av. low Lo | 63 | 65 | 63 | 55 | 47 | 43 |
| Av. precipitation in inch Av. precip. Pre. | 0.09 | 0.13 | 0.27 | 0.64 | 1.21 | 2.32 |
Ontario Climate Graph - California Climate Chart
Daily normals Ontario - California - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 65.2 | 43.1 | 0.16 | 0.16 | 0.00 | 0.00 |
| 2 Jan | 65.3 | 43.2 | 0.28 | 0.28 | 0.00 | 0.00 |
| 3 Jan | 65.3 | 43.3 | 0.39 | 0.39 | 0.00 | 0.00 |
| 4 Jan | 65.3 | 43.3 | 0.55 | 0.55 | 0.00 | 0.00 |
| 5 Jan | 65.3 | 43.4 | 0.67 | 0.67 | 0.00 | 0.00 |
| 6 Jan | 65.4 | 43.4 | 0.79 | 0.79 | 0.00 | 0.00 |
| 7 Jan | 65.4 | 43.5 | 0.91 | 0.91 | 0.00 | 0.00 |
| 8 Jan | 65.4 | 43.5 | 1.06 | 1.06 | 0.00 | 0.00 |
| 9 Jan | 65.4 | 43.6 | 1.18 | 1.18 | 0.00 | 0.00 |
| 10 Jan | 65.4 | 43.6 | 1.30 | 1.30 | 0.00 | 0.00 |
| 11 Jan | 65.4 | 43.7 | 1.42 | 1.42 | 0.00 | 0.00 |
| 12 Jan | 65.4 | 43.7 | 1.54 | 1.54 | 0.00 | 0.00 |
Weather history Ontario - September 2019
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Sep | - | 68.0 | - | - | - |
| 02 Sep | 99.0 | 72.0 | - | - | - |
| 04 Sep | - | 75.0 | - | - | - |
| 05 Sep | 100.0 | 75.9 | - | - | - |
| 06 Sep | - | 71.1 | - | - | - |
| 08 Sep | 84.0 | - | - | - | - |
| 09 Sep | 84.9 | - | - | - | - |
| 12 Sep | 98.1 | 64.0 | - | - | - |
| 14 Sep | 102.0 | - | - | - | - |
| 15 Sep | 97.0 | 66.9 | - | - | - |
| 16 Sep | - | 64.9 | - | - | - |
| 17 Sep | - | 62.1 | - | - | - |
| 18 Sep | 86.0 | 63.0 | - | - | - |
| 19 Sep | - | 60.1 | - | - | - |
| 23 Sep | 89.1 | - | - | - | - |
| 24 Sep | 102.9 | - | - | - | - |
| 25 Sep | - | 66.0 | - | - | - |
Past weather Ontario
| Sep 19 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | - ºF | 65 ºF | |
| Average low temperature Av. low temp. | 67.4 ºF | 44 ºF | |
| Total precipitation Total precip. | - inch | 3.31 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 102.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 84.0 ºF | - | |
| Highest min temperature Highest min temp. | 75.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 60.1 ºF | - | |
Past weather September 2019 incomplete - Missing data
Geo Ontario - California
| Country | United States | |
|---|---|---|
| State | California | |
| County | - | |
| City | Ontario | |
| Zip Code | 91798 | |
| Longitude | -117.65 dec. degr. | |
| Latitude | 34.06 dec. degr. | |
| Altitude - Elevation | 1004ft | |
| ICAO | - | |
| IATA | - |
Date and Time Ontario - California
| Local Time | 04:16 AM | |
|---|---|---|
| Sunrise | 05:41 AM | |
| Sunset | 07:53 PM | |
| Day/Night | Night | |
| Timezone | (UTC-08:00) Pacific Time (US & Canada) | |
| Timezone DB | America - Los Angeles |
Map of Ontario - California
Ontario weather averages
| Annual high temperature | 78ºF |
| Annual low temperature | 53ºF |
| Average annual precip. | 15.04 inch |
Station Data
Monthly averages Ontario
Longitude: -117.651, Latitude: 34.0633
Average weather Ontario, CA - 91798
Monthly: 1991-2020 normals
History: 2015-2019
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...