Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
As December arrives, Grand Haven's weather displays a decrease in high-temperatures, transitioning from November's chilly 45°F (7.2°C) to a wintry 34.7°F (1.5°C). In Grand Haven, December nights experience a modest descent in temperature from daily peaks, cooling down to an average of 28.9°F (-1.7°C).Humidity
The average relative humidity in December in Grand Haven is 82%.Rainfall
In December, the rain falls for 7.5 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 139.5 rainfall days, and 22.8" (579mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 12.9 days. Throughout December, 2.52" (64mm) of snow is accumulated. In Grand Haven, during the entire year, snow falls for 55 days and aggregates up to 14.21" (361mm) of snow.Daylight
The month with the shortest days in Grand Haven is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:57 am and sunset at 5:11 pm. On the last day of December, sunrise is at 8:16 am and sunset at 5:20 pm EST.
Sunshine
In December, the average sunshine is 2.9h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Grand Haven have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Grand Haven have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Grand Haven, MI
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is August (75.2°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in December
Grand Haven, MI
- Average pressure in December: 30.07"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
Grand Haven, MI
- Average wind speed in December: 12.3mph
The windiest months (with the highest average wind speed) are January and November (12.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in December
Grand Haven, MI
- Average humidity in December: 82%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in December
Grand Haven, MI
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is October (2.56").
The driest month (with the least rainfall) is November (1.22").
Average rainfall days in December
Grand Haven, MI
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in December
Grand Haven, MI
- Average snowfall in December: 2.52"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Grand Haven, MI
- Average snowfall days in December: 12.9 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grand Haven, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 5min
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 18min).
Average sunshine days in December
Grand Haven, MI
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is March (16.2 days).
The month with the least sunshine days is January (9.2 days).
Average UV index in December
Grand Haven, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Grand Haven, MI
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Grand Haven, MI
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Grand Haven, Michigan, USA
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