December weather forecastHarrison, MI
December
Weather in December
December, the first month of the winter in Harrison, is also a subzero cold month, with an average temperature fluctuating between 22.6°F (-5.2°C) and 30.6°F (-0.8°C).Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a wintry 41.9°F (5.5°C) in November to a freezing cold 30.6°F (-0.8°C). Harrison's nighttime temperatures in December settle close to daytime highs at an average of 22.6°F (-5.2°C).Humidity
In Harrison, Michigan, the average relative humidity in December is 86%.Rainfall
In December, the rain falls for 6.3 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. In Harrison, during the entire year, the rain falls for 127 days and collects up to 20.12" (511mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Harrison, in December, snow falls for 17.2 days, with typically accumulated 4.37" (111mm) of snow. Throughout the year, there are 79 snowfall days, and 24.61" (625mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:54 am and sunset at 5:02 pm. On the last day of December, sunrise is at 8:13 am and sunset at 5:11 pm EST.
Sunshine
The average sunshine in December is 2.5h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Harrison, MI
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in December: 22.6°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in December
Harrison, MI
- Average pressure in December: 30.05"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
Harrison, MI
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Harrison, MI
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Harrison, MI
- Average rainfall in December: 1.22"
The wettest months (with the highest rainfall) are May and October (2.68").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in December
Harrison, MI
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in December
Harrison, MI
- Average snowfall in December: 4.37"
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Harrison, MI
- Average snowfall days in December: 17.2 days
The month with the highest number of snowfall days is January (19.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harrison, 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 30min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in December
Harrison, MI
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is September (16 days).
The month with the least sunshine days is January (10.5 days).
Average UV index in December
Harrison, MI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Harrison, MI
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Harrison, MI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, October and November (6mi).
The month with the lowest visibility is January (4mi).
