Zip 91764 (Ontario, CA) Climate


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The climate in 91764 Ontario, CA is generally warm and dry with hot summers and mild winters. Average temperatures in the summer range from the low to mid-90s Fahrenheit, while winter temperatures typically stay around 50 degrees Fahrenheit. The area receives an average of 15 inches of precipitation each year, with most of it falling during the cooler months. Generally speaking, 91764 Ontario has a fairly mild climate all year round.

Ontario (zip 91764), California gets 17 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Ontario (zip 91764) averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 282 sunny days per year in Ontario (zip 91764). The US average is 205 sunny days.

Ontario (zip 91764) gets some kind of precipitation, on average, 32 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.


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 91764 zip code is 8.8 (10=best), which means it is more comfortable than most places in California.

8.5 Summer - 8.6 Winter
May, October and June are the most pleasant months in the 91764 zip code, while August and July are the least comfortable months.

  ClimateOntario, CaliforniaUnited States
  16.7 in.38.1 in.
  0.0 in.27.8 in.
  31.8 days106.2 days
  282 days205 days
  91.9°85.8°
  43.3°21.7°
  8.87
  5.74.3
  1046 ft.2443 ft.
Climate
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.

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. In the 91764 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 91764 zip code are May, April and October.
In the 91764 zip code, there are 79.4 days annually when the high temperature is over 90°, which is hotter than most places in California.
December has the coldest nighttime temperatures for the 91764 zip code with an average of 42.2°. This is warmer than most places in California.
In the 91764 zip code, there are 1.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.
In the 91764 zip code, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.
Humidity in the 91764 zip code is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are July, August and June.
February is the wettest month in the 91764 zip code with 4.2 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 60% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 16.7 inches in the 91764 zip code means that it is about average compared to other places in California.
February is the rainiest month in the 91764 zip code with 5.8 days of rain, and July is the driest month with only 0.2 rainy days. There are 31.8 rainy days annually in the 91764 zip code, which is less rainy than most places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 4% chance of a rainy day.
There is rarely any recorded snowfall in the 91764 zip code, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in the 91764 zip code.
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