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
January tends to be the coldest month, with temperatures averaging a daily high of 28.6°F (-1.9°C) and a low of 18.7°F (-7.4°C).Humidity
The most humid month is January, with an average relative humidity of 87%.Rainfall
In Mattawan, Michigan, in January, during 8.5 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 164 rainfall days, and 29.69" (754mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 19.6 days and accumulates 6.22" (158mm) of snow.Daylight
In Mattawan, Michigan, the average length of the day in January is 9h and 31min.On the first day of the month, sunrise is at 8:11 am and sunset at 5:21 pm. On the last day of January, sunrise is at 7:57 am and sunset at 5:55 pm EST.
Sunshine
With an average of 2.8h of sunshine, January has the least sunshine of the year.UV index
The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is it in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How much does it snow in January?
How many hours of daylight does Mattawan have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
How high is the UV index in January?
Average temperature in January
Mattawan, MI
- Average high temperature in January: 28.6°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in January: 18.7°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in January
Mattawan, MI
- Average pressure in January: 30.09"Hg
The months with the highest atmospheric pressure are January, March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Mattawan, 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 (6.3mph).
Average humidity in January
Mattawan, MI
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in January
Mattawan, MI
- Average rainfall in January: 2.09"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in January
Mattawan, MI
- Average rainfall days in January: 8.5 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in January
Mattawan, MI
- Average snowfall in January: 6.22"
The month with the highest snowfall is January (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Mattawan, MI
- Average snowfall days in January: 19.6 days
The month with the highest number of snowfall days is January (19.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Mattawan, 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: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in January
Mattawan, MI
- Average sunshine days in January: 7.4 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in January
Mattawan, MI
- Average UV index in January: 2
The month with the highest UV index is August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Mattawan, MI
- Average cloud cover in January: 73
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Mattawan, MI
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Mattawan, Michigan, USA
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