January weather forecastNapierville, Canada
January
Weather in January
January, like December, is a freezing cold winter month in Napierville, Canada, with an average temperature ranging between min -12.4°C (9.7°F) and max -5.3°C (22.5°F).Temperature
Napierville witnesses the coldest weather in January, with temperatures averaging a high of -5.3°C (22.5°F) and a low of -12.4°C (9.7°F).Humidity
January and February, with an average relative humidity of 90%, are the most humid months in Napierville, Canada.Rainfall
In Napierville, in January, during 6.8 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Napierville, Canada, during the entire year, the rain falls for 137 days and collects up to 329mm (12.95") of precipitation.Snowfall
January through May, October through December are months with snowfall in Napierville. The month with the most snowfall in Napierville is January, when snow falls for 15.6 days and typically aggregates up to 93mm (3.66") of snow.Daylight
The average length of the day in January in Napierville, Canada, is 9h and 13min.On the first day of January, sunrise is at 7:32 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:58 pm EST.
Sunshine
In January, the average sunshine is 3.1h.UV index
The months with the lowest UV index in Napierville are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, the average maximum UV index of 1 translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Napierville, Canada
- Average high temperature in January: -5.3°C
The warmest month (with the highest average high temperature) is July (25.4°C).
The month with the lowest average high temperature is January (-5.3°C).
- Average low temperature in January: -12.4°C
The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is January (-12.4°C).
Average pressure in January
Napierville, Canada
- Average pressure in January: 1016.4mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in January
Napierville, Canada
- Average wind speed in January: 13.1km/h
The windiest month (with the highest average wind speed) is April (13.9km/h).
The calmest months (with the lowest average wind speed) are July and August (10.4km/h).
Average humidity in January
Napierville, Canada
- Average humidity in January: 90%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Napierville, Canada
- Average rainfall in January: 22mm
The wettest month (with the highest rainfall) is August (37mm).
The driest month (with the least rainfall) is September (18mm).
Average rainfall days in January
Napierville, Canada
- Average rainfall days in January: 6.8 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in January
Napierville, Canada
- Average snowfall in January: 93mm
The month with the highest snowfall is January (93mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in January
Napierville, Canada
- Average snowfall days in January: 15.6 days
The month with the highest number of snowfall days is February (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Napierville, 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 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in January
Napierville, Canada
- Average sunshine days in January: 14.3 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in January
Napierville, 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 and December (UV index 1).
Average cloud cover in January
Napierville, Canada
- Average cloud cover in January: 68
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Napierville, Canada
- Average visibility in January: 7km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The month with the lowest visibility is January (7km).
