Ontario, Oregon 

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Climate in Ontario, Oregon

Ontario, Oregon gets 11 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Ontario averages 13 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 207 sunny days per year in Ontario. The US average is 205 sunny days.

Ontario gets some kind of precipitation, on average, 79 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 20
Rain: averages 11 inches of rain a year
Snow: averages 13 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for Ontario is 7.2 (10=best), which means it is about average compared to other places in Oregon.

7.2 / 10
June, September and May are the most pleasant months in Ontario, while December and January are the least comfortable months.

Climate Averages
  Ontario, OregonUnited States
  10.6 in.38.1 in.
  13.2 in.27.8 in.
  78.5 days106.2 days
  207 days205 days
  91.9°85.8°
  20.3°21.7°
  7.27
  44.3
  2152 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.


July is the hottest month for Ontario with an average high temperature of 91.9°, which ranks it as one of the hottest places in Oregon. In Ontario, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ontario are September, June and May.


January has the coldest nighttime temperatures for Ontario with an average of 20.3°. This is one of the coldest places in Oregon.


In Ontario, there are 50.9 days annually when the high temperature is over 90°, which is one of the hottest places in Oregon.


In Ontario, there are 137.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Oregon.


In Ontario, there are 4.0 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Oregon.


December is the wettest month in Ontario with 1.7 inches of rain, and the driest month is August with 0.2 inches. The wettest season is Spring with 37% of yearly precipitation and 12% occurs in Autumn, which is the driest season. The annual rainfall of 10.6 inches in Ontario means that it is one of the driest places in Oregon.


December is the rainiest month in Ontario with 10.3 days of rain, and July is the driest month with only 2.3 rainy days. There are 78.5 rainy days annually in Ontario, which is one of the least rainy places in Oregon. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 12% chance of a rainy day.


An annual snowfall of 13.2 inches in Ontario means that it is snowier than most places in Oregon. December is the snowiest month in Ontario with 6.5 inches of snow, and 4 months of the year have significant snowfall.





  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Ontario    5 Reviews
    Meth heads and illegal immigrants - 4/30/2018
    Ontario Oregon is full of illegal immigrants who refuse to learn English and leach off the welfare system the police and ice refuse to deport these criminals Meth use... Read More

    Start Your Review of Ontario


    Crime in Ontario, Or. - 10/12/2014
    In reply to "Crime in Ontario," It's too bad that when a Hispanic culture moves in to a nice little town, your crime rate goes up and property values go down. And... Read More

    Crime - 6/6/2010
    Well Ontario has a real problem with... Read More


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