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
With an average high-temperature of 29.5°F (-1.4°C) and an average low-temperature of 18°F (-7.8°C), January is the coldest month.Humidity
January and February, with an average relative humidity of 85%, are the most humid months.Rainfall
In January, the rain falls for 3.6 days. Throughout January, 0.31" (8mm) of precipitation is accumulated. In Willis, Michigan, during the entire year, the rain falls for 85.1 days and collects up to 5.98" (152mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall in Willis is January, when snow falls for 9.1 days and typically aggregates up to 0.87" (22mm) of snow.Daylight
The average length of the day in January is 9h and 31min.On the first day of the month, sunrise is at 8:02 am and sunset at 5:12 pm. On the last day of January, sunrise is at 7:48 am and sunset at 5:46 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 3h of sunshine.UV index
In Willis, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. It's recommended to limit sun exposure when its radiation is at its peak during midday. Boost your sun resistance with garments that are densely woven yet spacious. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Willis?
How cold is it in Willis in January?
What is the most humid month in Willis?
What is the average humidity in January in Willis?
How many days does it rain in January in Willis?
When does it snow the most in Willis?
How much does it snow in Willis in January?
How many hours of daylight does Willis have in January?
When are sunrise and sunset in January in Willis?
What is the month with the least sunshine in Willis?
How many hours of sunshine does Willis have in January?
What is the UV index intensity in January in Willis?
Average temperature in January
Willis, MI
- Average high temperature in January: 29.5°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in January: 18°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in January
Willis, MI
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Willis, MI
- Average wind speed in January: 10.2mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in January
Willis, MI
- Average humidity in January: 85%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are March, April and October (76%).
Average rainfall in January
Willis, MI
- Average rainfall in January: 0.31"
The wettest month (with the highest rainfall) is May (0.75").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in January
Willis, MI
- Average rainfall days in January: 3.6 days
The months with the highest number of rainy days are April and May (10.2 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in January
Willis, MI
- Average snowfall in January: 0.87"
The month with the highest snowfall is January (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Willis, MI
- Average snowfall days in January: 9.1 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Willis, MI
- Average daylight in January: 9h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in January
Willis, MI
- Average sunshine days in January: 22.3 days
The month with the most sunshine days is December (23.6 days).
The month with the least sunshine days is April (17.4 days).
Average UV index in January
Willis, MI
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Willis, MI
- Average cloud cover in January: 67
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in January
Willis, MI
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Willis, Michigan, USA
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