Zip 91764 (Ontario, CA) 

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Weather in Zip 91764 (Ontario, CA)

The most pleasant months of the year for the 91764 zip code are May, April and October. In the 91764 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for the 91764 zip code with an average high temperature of 93.2°, which ranks it as warmer than most places in California. Any measurable snowfall is a rare occurance in the 91764 zip code. There are few days during the summer when the humidity becomes unpleasant.


Today's Weather - Ontario, CA

1 AM PST

Sunny

68°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonSunny71° / 46°W 5 mph
FridaySunny75° / 45°NW 5 to 10 mph
SaturdaySunny72° / 46°W 0 to 10 mph
SundaySunny66° / 43°NE 20 to 30 mph
MondaySunny71° / 44°E 0 to 10 mph
TuesdayMostly Sunny66° / 44°SE 0 to 5 mph
WednesdaySlight Chance Rain Showers66° / 45°NW 5 mph

Weather Highlights

Summer High: the July high is around 92 degrees
Winter Low: the January low is 43
Rain: averages 17 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Ontario (zip 91764) area is 8.8 (10=best), which means it is more comfortable than most places in California.

8.8 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January67° 43°
February68° 45°
March71° 47°
April75° 50°
May79° 55°
June85° 58°
July92° 62°
August93° 63°
September90° 61°
October81° 54°
November73° 47°
December67° 42°
Hot, Freezing, Rainy, Snowy Days: Ontario
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0150
February0060
March1050
April2030
May4010
June9010
July20000
August22000
September16010
October6020
November1030
December0140

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.


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Ontario (zip 91764)

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