Normal weather for Ontario in January
It's cold in January in Ontario with an average temperature of 0°C. Temperatures this month range from a low of -2°C to a high of 3°C. At night, you can expect temperatures between -10°C and -4°C.
In January, there is an average of 82 mm of precipitation, spread over 12 days. Of the total precipitation, about 26 cm falls as snow in January. The wind speed is around 5 Bft, mostly coming from the Southwest.
The UV index is a maximum of 3 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Ontario in January |
UK | ||
|---|---|---|---|
 Average Temperature |
0°C | 8°C | |
 High Temp |
3°C | 9°C | |
| Low Temp |
-2°C | 6°C | |
 Total Precipitation |
82 mm | 58 mm | |
| Rainy Days |
12 days | 9 days | |
 Total Snowfall |
26 cm | 0,8 cm | |
| Snowy Days |
11 days | 1 day | |
Curious about the climate in other parts of Canada? Check out the weather and climate in places like Vancouver, Toronto, Niagara Falls, or have a look at other destinations in Canada.
Start of January
The month of January starts in Ontario with very cold temperatures, averaging around 1°C during the day and nights close to -5°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-January
By mid-January, the average daytime temperature stays the same at 1°C, with nights close to -5°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of January
By the end of January, the average daytime temperature in Ontario will be around -0°C, with nights close to -6°C. A shower might show up, but overall the weather will be dry and sunny.
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Temperature records for Ontario in January
With 12°C, Ontario hit the highest temperature in the last 10 years in January 2020. The lowest daytime temperature in this month was -16°C in 2018. The extreme night temperatures ranged from a low of -23°C to a high of 6°C.
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Daily Temperature in January in Ontario
This chart shows the average daily temperatures, both day and night, for each day in January in Ontario, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in January in Ontario
The chart below shows the average daily precipitation in January for Ontario, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for January, you can expect around 12 days of rain in Ontario.
Daily Snowfall in January in Ontario
This chart shows the average daily snowfall in January in Ontario, measured in centimetres. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in January.
Daily UV Index in January in Ontario
This chart shows the average daily UV index in January in Ontario, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Ontario Over the Years
This chart shows the average temperature in January in Ontario, measured in degrees Celsius, over the past years.
Total Precipitation in January in Ontario Over the Years
This chart shows the average precipitation in January in Ontario, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in January in Ontario per year
This chart shows the average snowfall in January in Ontario, measured in centimetres, over the past years.
Daily climate in January for Ontario
Click on a specific day in January for detailed info on the typical weather on that day in Ontario. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Ontario
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Average Weather in Ontario by Month
Click on a month below to see detailed weather info for Ontario. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
