December weather forecastHart, MI
December
Weather in December
The first month of the winter, December, is still a cold month in Hart, Michigan, with an average temperature fluctuating between 33.6°F (0.9°C) and 27.5°F (-2.5°C).Temperature
December's arrival coincides with a drop in the average high-temperature, decreasing from November's frosty 43.5°F (6.4°C) to a cold 33.6°F (0.9°C). Hart records a slight downturn in temperature to an average of 27.5°F (-2.5°C) during December nights.Humidity
In December, the average relative humidity in Hart is 83%.Rainfall
In Hart, during December, the rain falls for 7.1 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Hart, during the entire year, the rain falls for 140.3 days and collects up to 25.08" (637mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Hart. In December, in Hart, Michigan, it is snowing for 16 days. Throughout December, 4.09" (104mm) of snow is accumulated. Throughout the year, in Hart, there are 68.4 snowfall days, and 18.07" (459mm) of snow is accumulated.Daylight
December has the shortest days of the year in Hart, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:59 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 8:18 am and sunset at 5:18 pm EST.
Sunshine
In December, the average sunshine is 2.7h.UV index
The months with the lowest UV index in Hart are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hart, MI
- Average high temperature in December: 33.6°F
The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is August (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Hart, MI
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Hart, MI
- Average wind speed in December: 12.7mph
The windiest month (with the highest average wind speed) is November (13.1mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).
Average humidity in December
Hart, MI
- Average humidity in December: 83%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in December
Hart, MI
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is October (3.46").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in December
Hart, MI
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is October (17.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Hart, MI
- Average snowfall in December: 4.09"
The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hart, MI
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hart, MI
- Average daylight in December: 9h and 0min
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 December: 2h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in December
Hart, MI
- Average sunshine days in December: 9.2 days
The month with the most sunshine days is July (14.8 days).
The month with the least sunshine days is January (6.3 days).
Average UV index in December
Hart, MI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Hart, MI
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Hart, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





