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Climate & Weather Averages in Ontario, California, USA

Now
53 °F

Sunny.


Feels Like: 52 °F
Forecast: 75 / 49 °F
Wind: 5 mph from Northeast

Location: Ontario International Airport

Current Time: May 24, 2019 at 6:43:40 am

Latest Report: May 24, 2019 at 5:53 am


Visibility: 10 mi

Pressure: 29.97 "Hg

Humidity: 89%

Dew Point: 50 °F

Location of OntarioLocation

Annual Weather Averages in Ontario

Based on weather reports collected during 1985–2015.

All Year Climate & Weather Averages in Ontario

High Temp: 94 °F

Low Temp: 41 °F

Mean Temp: 65 °F

Precipitation: 0.09"

Humidity: 61%

Dew Point: 48 °F

Wind: 6 mph

Pressure: 29.97 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Ontario

High Temp: 68 °F

Low Temp: 42 °F

Mean Temp: 55 °F

Precipitation: 0.17"

Humidity: 60%

Dew Point: 38 °F

Wind: 5 mph

Pressure: 30.09 "Hg

Visibility: 11 mi

February Climate & Weather Averages in Ontario

High Temp: 68 °F

Low Temp: 44 °F

Mean Temp: 56 °F

Precipitation: 0.58"

Humidity: 65%

Dew Point: 42 °F

Wind: 5 mph

Pressure: 30.05 "Hg

Visibility: 10 mi

March Climate & Weather Averages in Ontario

High Temp: 71 °F

Low Temp: 47 °F

Mean Temp: 59 °F

Precipitation: 0.10"

Humidity: 65%

Dew Point: 45 °F

Wind: 6 mph

Pressure: 30.01 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Ontario

High Temp: 76 °F

Low Temp: 50 °F

Mean Temp: 63 °F

Precipitation: 0.04"

Humidity: 62%

Dew Point: 46 °F

Wind: 6 mph

Pressure: 29.97 "Hg

Visibility: 9 mi

May Climate & Weather Averages in Ontario

High Temp: 80 °F

Low Temp: 54 °F

Mean Temp: 67 °F

Precipitation: 0.01"

Humidity: 64%

Dew Point: 52 °F

Wind: 7 mph

Pressure: 29.93 "Hg

Visibility: 8 mi

June Climate & Weather Averages in Ontario

High Temp: 86 °F

Low Temp: 58 °F

Mean Temp: 72 °F

Precipitation: 0.00"

Humidity: 63%

Dew Point: 55 °F

Wind: 7 mph

Pressure: 29.89 "Hg

Visibility: 7 mi

July Climate & Weather Averages in Ontario

High Temp: 92 °F

Low Temp: 62 °F

Mean Temp: 77 °F

Precipitation: 0.00"

Humidity: 60%

Dew Point: 59 °F

Wind: 7 mph

Pressure: 29.90 "Hg

Visibility: 8 mi

August Climate & Weather Averages in Ontario

High Temp: 94 °F

Low Temp: 63 °F

Mean Temp: 78 °F

Precipitation: 0.00"

Humidity: 56%

Dew Point: 58 °F

Wind: 6 mph

Pressure: 29.89 "Hg

Visibility: 8 mi

September Climate & Weather Averages in Ontario

High Temp: 91 °F

Low Temp: 60 °F

Mean Temp: 76 °F

Precipitation: 0.00"

Humidity: 57%

Dew Point: 56 °F

Wind: 5 mph

Pressure: 29.88 "Hg

Visibility: 8 mi

October Climate & Weather Averages in Ontario

High Temp: 82 °F

Low Temp: 54 °F

Mean Temp: 68 °F

Precipitation: 0.01"

Humidity: 60%

Dew Point: 50 °F

Wind: 5 mph

Pressure: 29.95 "Hg

Visibility: 8 mi

November Climate & Weather Averages in Ontario

High Temp: 74 °F

Low Temp: 46 °F

Mean Temp: 60 °F

Precipitation: 0.05"

Humidity: 57%

Dew Point: 41 °F

Wind: 5 mph

Pressure: 30.03 "Hg

Visibility: 10 mi

December Climate & Weather Averages in Ontario

High Temp: 67 °F

Low Temp: 41 °F

Mean Temp: 54 °F

Precipitation: 0.14"

Humidity: 59%

Dew Point: 37 °F

Wind: 4 mph

Pressure: 30.08 "Hg

Visibility: 11 mi

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Quick Climate Info

Hottest MonthAugust (78 °F avg)
Coldest MonthDecember (54 °F avg)
Wettest MonthFebruary (0.58" avg)
Windiest MonthJune (7 mph avg)
Annual Rainfall1.11" (per year)

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