Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Ontario witnesses its lowest temperatures in January and December, reaching an average of 36.1°F (2.3°C).Humidity
January is the most humid month in Ontario, Oregon, with an average relative humidity of 82%.Rainfall
In Ontario, in January, during 9.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Ontario, during the entire year, the rain falls for 84.9 days and collects up to 9.29" (236mm) of precipitation.Snowfall
Months with snowfall in Ontario are January through April, November and December. In Ontario, during January, snow falls for 6.3 days and regularly aggregates up to 3.46" (88mm) of snow. Throughout the year, in Ontario, Oregon, there are 21.8 snowfall days, and 12.56" (319mm) of snow is accumulated.Daylight
In January, the average length of the day in Ontario, Oregon, is 9h and 20min.On the first day of the month, sunrise is at 8:22 am and sunset at 5:20 pm. On the last day of January, in Ontario, sunrise is at 8:06 am and sunset at 5:56 pm MST.
Sunshine
The average sunshine in January in Ontario is 5.2h.UV index
The months with the lowest UV index in Ontario, Oregon, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What time of the year is the coldest in Ontario?
How cold is January in Ontario?
What is the most humid month in Ontario?
What is the average humidity in January in Ontario?
How much does it rain in Ontario in January?
How many days does it snow in January in Ontario?
What is the average length of the day in January in Ontario?
What time are sunrise and sunset in January in Ontario?
How long on average sun shines in January in Ontario?
What is the month with the lowest UV index in Ontario?
What is the UV index intensity in January in Ontario?
Average temperature in January
Ontario, OR
- Average high temperature in January: 36.1°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The months with the lowest average high temperature are January and December (36.1°F).
- Average low temperature in January: 23.5°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (23°F).
Average pressure in January
Ontario, OR
- Average pressure in January: 30.24"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in January
Ontario, OR
- Average wind speed in January: 3.9mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in January
Ontario, OR
- Average humidity in January: 82%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (29%).
Average rainfall in January
Ontario, OR
- Average rainfall in January: 1.42"
The wettest month (with the highest rainfall) is December (1.57").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in January
Ontario, OR
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).
Average snowfall in January
Ontario, OR
- Average snowfall in January: 3.46"
The month with the highest snowfall is December (5.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Ontario, OR
- Average snowfall days in January: 6.3 days
The month with the highest number of snowfall days is December (7.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Ontario, OR
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in January
Ontario, OR
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is February (15.2 days).
Average UV index in January
Ontario, OR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Ontario, OR
- Average cloud cover in January: 44
The months with the most cloud cover are January and December (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in January
Ontario, OR
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Ontario, Oregon, USA
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