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Ontario
Weather averages
ClimateForecastNovemberDecember >>

Ontario (OR) Climate by Month

The graphs below provide an overview of the climate in Ontario (Oregon), the United States of America. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Forecast for Ontario (OR)

Tue   Nov 05
11°C | 1°C
NW 25 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
Wed   Nov 06
10°C | -2°C
N 7 km/h
clear and no rain

clear and no rain

hourly forecast
Thu   Nov 07
10°C | -3°C
E 7 km/h
clear and no rain

clear and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Ontario in the United States of America

Other facts from our historical weather data:

  • When is summer in Ontario?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Ontario?
    July has an average maximum temperature of 35°C and is the warmest month of the year.
  • Which is the coldest month in Ontario?
    The coldest month is January with an average maximum temperature of 2°C.
  • Which is the wettest month in Ontario?
    December tops the wettest month list with 45 mm of rainfall.
  • Which is the driest month in Ontario?
    July is the driest month with 4 mm of precipitation.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     


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