Climate Ontario - California
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 68 | 68 | 72 | 76 | 80 | 86 |
| Average low in ºF Av. low Lo | 45 | 46 | 49 | 51 | 56 | 60 |
| Days with precipitation Days precip. DP | 5 | 6 | 5 | 3 | 1 | 0 |
| Av. precipitation in inch Av. precip. Pre. | 2.57 | 3.07 | 1.64 | 0.76 | 0.30 | 0.02 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 94 | 95 | 91 | 83 | 75 | 67 |
| Average low in ºF Av. low Lo | 65 | 65 | 64 | 57 | 49 | 44 |
| Days with precipitation Days precip. DP | 0 | 0 | 0 | 2 | 3 | 5 |
| Av. precipitation in inch Av. precip. Pre. | 0.05 | 0.03 | 0.10 | 0.41 | 0.80 | 1.89 |
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 - December 2019
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Dec | 64.0 | 46.0 | 0.00 | 0.00 | 0.0 |
| 02 Dec | 71.1 | 45.0 | 0.00 | 0.00 | 0.0 |
| 03 Dec | 70.0 | 51.1 | T | 0.00 | 0.0 |
| 04 Dec | 61.0 | 53.1 | 0.95 | 0.00 | 0.0 |
| 05 Dec | 66.0 | 52.0 | 0.00 | 0.00 | 0.0 |
| 06 Dec | 69.1 | 48.9 | 0.13 | - | 0.0 |
| 07 Dec | 64.0 | 57.0 | 0.10 | 0.00 | 0.0 |
| 08 Dec | 63.0 | 53.1 | 0.07 | 0.00 | 0.0 |
| 09 Dec | 66.9 | 48.9 | 0.00 | 0.00 | 0.0 |
| 10 Dec | 68.0 | 45.0 | 0.00 | 0.00 | 0.0 |
| 11 Dec | 66.9 | 44.1 | 0.00 | 0.00 | 0.0 |
| 12 Dec | 72.0 | 48.0 | 0.00 | 0.00 | 0.0 |
| 13 Dec | 73.9 | 50.0 | 0.00 | 0.00 | 0.0 |
| 14 Dec | 60.1 | 51.1 | 0.03 | 0.00 | 0.0 |
| 15 Dec | 62.1 | 46.0 | 0.00 | 0.00 | 0.0 |
| 16 Dec | 68.0 | 39.9 | 0.00 | 0.00 | 0.0 |
| 17 Dec | 68.0 | 37.9 | 0.00 | 0.00 | 0.0 |
| 18 Dec | 63.0 | 43.0 | 0.00 | 0.00 | 0.0 |
| 19 Dec | 66.0 | 35.1 | 0.00 | 0.00 | 0.0 |
| 20 Dec | 75.9 | 42.1 | 0.00 | 0.00 | 0.0 |
| 21 Dec | 73.0 | 46.9 | 0.00 | 0.00 | 0.0 |
| 22 Dec | 68.0 | 48.0 | 0.00 | 0.00 | 0.0 |
| 23 Dec | 62.1 | 50.0 | 0.70 | 0.00 | 0.0 |
| 24 Dec | 59.0 | 44.1 | 0.08 | - | 0.0 |
| 25 Dec | 54.0 | 44.1 | 0.14 | - | 0.0 |
| 26 Dec | 50.0 | 41.0 | 1.65 | - | 0.0 |
Past weather Ontario
| Dec 19 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 65.6 ºF | 68 ºF | |
| Average low temperature Av. low temp. | 46.6 ºF | 45 ºF | |
| Total precipitation Total precip. | 3.85 inch | 2.57 inch | |
| Total snowfall Total snowfall | 0.00 inch | 0 inch | |
| Highest max temperature Highest max temp. | 75.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 50.0 ºF | - | |
| Highest min temperature Highest min temp. | 57.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 35.1 ºF | - | |
Past weather December 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 | 09:35 PM | |
|---|---|---|
| Sunrise | 06:34 AM | |
| Sunset | 06:55 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 | 79ºF |
| Annual low temperature | 54ºF |
| Days per year with precip. | 30 days |
| Average annual precip. | 11.64 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, ...