Hot semi-arid
Ontario, California
San Bernardino County, California · Population 178k · 1,007 ft elevation
Living in Ontario
Ontario has a hot semi-arid climate: very hot summers (July highs around 94°F) and mild winters (January lows around 44°F).
Precipitation is dry at about 12″ a year, and it essentially never sees snow.
Skies are exceptionally sunny (87% of possible sunshine). It never gets truly muggy.
Air quality is poor: a median AQI of 77, with about 110 unhealthy-air days in the latest year.
There is plenty to explore outdoors around Ontario: about 29% of the land within 30 miles is public (parks, national forest and the like), and the terrain rises and falls about 5,800 ft around town.
Ontario at a glance
- Population
- 178k
- Elevation
- 1,007 ft
- Average daily high
- 79°F87th percentile
- Average daily low
- 54°F81th percentile
- Annual precipitation
- 12″5th percentile
- Annual snowfall
- 0″0th percentile
- Sunshine hours per year
- 3,879 hrs99th percentile
- Median AQI
- 7799th percentile
- Median home value
- $568k85th percentile
- Median rent
- $1,916/mo85th percentile
- Median household income
- $83k59th percentile
- Property tax rate
- 0.60%17th percentile
- Top state income-tax rate
- 13.3%
- Sales tax (state + local)
- 8.8%
- Unemployment rate
- 6.0%
- Homes with broadband
- 94%69th percentile
- Walkability index
- 11.777th percentile
- Average commute
- 32 min
- Math proficiency (8th grade)
- 30%24th percentile
- Reading proficiency (8th grade)
- 54%
- Violent crime rate
- 244 per 100k63th percentile
- Property crime rate
- 1,597 per 100k
- Overall natural-hazard risk
- 10093th percentile
- Outdoor access
- 8786th percentile
- Public land within 10 miles
- 1%
- Public land within 30 miles
- 29%
- Mountain relief within 30 miles
- 5,840 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 68°F | 44°F | 2.6″ | — | 249 hrs |
| Feb | 68°F | 46°F | 3.1″ | — | 241 hrs |
| Mar | 72°F | 49°F | 1.6″ | — | 309 hrs |
| Apr | 76°F | 51°F | 0.8″ | — | 334 hrs |
| May | 80°F | 55°F | 0.3″ | — | 383 hrs |
| Jun | 86°F | 60°F | 0.0″ | — | 406 hrs |
| Jul | 94°F | 65°F | 0.1″ | — | 404 hrs |
| Aug | 95°F | 65°F | 0.0″ | — | 390 hrs |
| Sep | 91°F | 64°F | 0.1″ | — | 344 hrs |
| Oct | 82°F | 57°F | 0.4″ | — | 313 hrs |
| Nov | 75°F | 49°F | 0.8″ | — | 265 hrs |
| Dec | 67°F | 43°F | 1.9″ | — | 240 hrs |
Near Ontario
- Chino, CA · 92k
- Eastvale, CA · 70k
- Montclair, CA · 38k
- Upland, CA · 79k
- Rancho Cucamonga, CA · 175k
- Jurupa Valley, CA · 106k
- Norco, CA · 25k
- Claremont, CA · 37k
Largest places in California
- Los Angeles, CA · 3.9M
- San Diego, CA · 1.4M
- San Jose, CA · 990k
- San Francisco, CA · 836k
- Fresno, CA · 544k
- Sacramento, CA · 525k
- Long Beach, CA · 458k
- Oakland, CA · 438k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology