Daylight through the yearLongest day (Jun 21): 14 h 26 min5:39 am – 8:05 pmShortest day (Dec 21): 9 h 53 min6:52 am – 4:45 pm
Sun todaySunrise –Sunset –
ClimateWarmest month August: highs 95°F, lows 65°FColdest month December: highs 67°F, lows 44°F12 in of rain a year, on about 20 dayswettest month FebruarySnow is rare93 days above 90°F, 2 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Ontario Intl Ap station, 2 mi away; snow from Pomona/fairplex
Nearby landmarksAmerican Career Collegecollege · 2.3 miPlatt College - Ontario Campuscollege · 2.5 miCypress Trails Parkpark · 4.6 miSwan Lakelake · 4.3 miOntario Reservoir Number 1reservoir · 4.9 miTwin Buttespeak · 8.5 miSource: USGS Geographic Names Information System
Parks and public landsWestwind Parkpark · under a mileCreekside Park and Golf Courserecreation area · 1.1 miChino Hills State Parkstate park · 8.7 mi · 6,830 acresCalifornia Citrus State Historic Parkstate historic site · 13.4 mi · 252 acresCoal Canyon Ecological Reservestate conservation land · 13.2 mi · 927 acresSan Bernardino National Forestnational forest · 18.3 mi · 10,098 acresSource: USGS Protected Areas Database (PAD-US)
Earthquakes1,433 of magnitude 3 or more within 50 miles since 1970180 of magnitude 4+, 17 of magnitude 5+Largest: magnitude 6.3 on 28 Jun 199245 mi away, The 1992 Big Bear, CaliforniaMost recent: magnitude 3.1 on 6 Sep 202637 mi awaySource: USGS Earthquake Catalog
Natural hazardsOverall risk Very HighSan Bernardino County, CA, compared with all US countiesHigher-risk hazardsLandslide Very HighWildfire Very HighEarthquake Very HighRiver flooding Very HighSource: FEMA National Risk Index (county level)
Air quality13% of days had good air in 202546 of 365 days measured209 moderate, 67 unhealthy for sensitive groups, 43 unhealthy daysMedian index 77, worst day 207main pollutant: ozoneSource: US EPA Air Quality Index, San Bernardino County monitors, CA
Drinking waterOntario Municipal Utilities Companyserves 185,010 people from surface water purchasedNo health-based violations since 2021Source: US EPA Safe Drinking Water Information System, largest system serving the town
Elevation837 ft255 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalKindred Hospital Ontario3.7 miPost officeGuasti Post Office2.1 miTown hallOntario City Hall3.8 miPoliceOntario Police Departmentunder a mileFire stationOntario Fire Department Station 6under a mileSource: USGS National Structures Dataset
SchoolsWithin 2 mi6 schools3 elementary, 1 middle, 1 high, 1 otherElementaryMountain View Elementary Schoolunder a mileSchoolMontecito Baptist Church Schoolunder a mileMiddleGrace Yokley Middle School1.1 miCollegeAmerican Career College2.3 miSource: USGS National Structures Dataset
Getting aroundAirportOntario International Airport ONT1.5 miInterstateI-102.2 miUS highwayUS 39528 miAmtrakOntario, CA ONA3.8 miRailOntario - EastMetrolinkunder a mileCoachOntario (Convention Center)Mexicoach2.3 miTransit3 stops within a mileOMNI, MetrolinkSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 91758 ZIP area.