January weather forecastOttawa, Canada
January
Weather in January
January in Ottawa, Canada steps in with winter at its most powerful peak. The month exhibits the coldest temperatures for the year with a high of -6.3°C (20.7°F) and even more frigid lows of -14.5°C (5.9°F). Attesting to its winter status, weather conditions are definitely icy, frosty and generally face-bitingly cold. Relative humidity usually remains high, facilitating the formation of frost, ice and snow. It's indeed a time for snow boots, warm mittens, and hot cups of cocoa by the fireplace.Temperature
January, known for its average high temperature of -6.3°C (20.7°F) and an average low temperature of -14.5°C (5.9°F), is the coldest month.Humidity
January and February, with an average relative humidity of 91%, are the most humid months in Ottawa.Rainfall
In Ottawa, in January, it is raining for 6 days, with typically 64mm (2.52") of accumulated precipitation. In Ottawa, during the entire year, the rain falls for 149.6 days and collects up to 772mm (30.39") of precipitation.Snowfall
Months with snowfall in Ottawa are January through May, October through December. The month with the most snowfall is January, when snow falls for 19.8 days and typically aggregates up to 321mm (12.64") of snow.Daylight
The average length of the day in January is 9h and 12min.On the first day of January in Ottawa, sunrise is at 7:42 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:07 pm EST.
Sunshine
In Ottawa, the average sunshine in January is 3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 1 during January translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Ottawa, Canada
- Average high temperature in January: -6.3°C
The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in January: -14.5°C
The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (-14.5°C).
Average pressure in January
Ottawa, Canada
- Average pressure in January: 1016.6mbar
The month with the highest atmospheric pressure is March (1018mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in January
Ottawa, Canada
- Average wind speed in January: 13.3km/h
The windiest month (with the highest average wind speed) is April (14km/h).
The calmest month (with the lowest average wind speed) is July (9.8km/h).
Average humidity in January
Ottawa, Canada
- Average humidity in January: 91%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in January
Ottawa, Canada
- Average rainfall in January: 64mm
The wettest month (with the highest rainfall) is October (78mm).
The driest month (with the least rainfall) is September (54mm).
Average rainfall days in January
Ottawa, Canada
- Average rainfall days in January: 6 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in January
Ottawa, Canada
- Average snowfall in January: 321mm
The month with the highest snowfall is January (321mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Ottawa, Canada
- Average snowfall days in January: 19.8 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Ottawa, Canada
- Average daylight in January: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in January
Ottawa, Canada
- Average sunshine days in January: 10.7 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in January
Ottawa, Canada
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in January
Ottawa, Canada
- Average cloud cover in January: 69
The months with the most cloud cover are January and February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Ottawa, Canada
- Average visibility in January: 7km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January and February (7km).
