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
A subtle decrease in the average high-temperature marks December, falling from November's chilly 44.1°F (6.7°C) to a cold 33.1°F (0.6°C). December nights in Grand Blanc, Michigan, register a minor temperature decline, steadying at a subzero cold 24.4°F (-4.2°C).Humidity
The average relative humidity in December in Grand Blanc, Michigan, is 85%.Rainfall
September and December are months with the least rain when the rain falls for 8.4 days and typically aggregates up to 1.57" (40mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In December, in Grand Blanc, it is snowing for 15.9 days. Throughout December, 3.5" (89mm) of snow is accumulated. In Grand Blanc, during the entire year, snow falls for 71.3 days and aggregates up to 21.89" (556mm) of snow.Daylight
The month with the shortest days in Grand Blanc is December, with an average of 9h and 6min of daylight.On the first day of December in Grand Blanc, Michigan, sunrise is at 7:46 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:10 pm EST.
Sunshine
The average sunshine in December is 3.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Grand Blanc in December?
What is the average humidity in December in Grand Blanc?
What is the driest month in Grand Blanc?
How much does it rain in Grand Blanc in December?
How much does it snow in Grand Blanc in December?
What is the month with the shortest days in Grand Blanc?
How many hours of daylight does Grand Blanc have in December?
What time are sunrise and sunset in December in Grand Blanc?
How many hours of sunshine does Grand Blanc have in December?
When is the lowest UV index in Grand Blanc?
What is the UV index reading in December in Grand Blanc?
Average temperature in December
Grand Blanc, MI
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Grand Blanc, 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 (29.93"Hg).
Average wind speed in December
Grand Blanc, MI
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Grand Blanc, MI
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Grand Blanc, MI
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (3.03").
The driest months (with the least rainfall) are September and December (1.57").
Average rainfall days in December
Grand Blanc, MI
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
Grand Blanc, MI
- Average snowfall in December: 3.5"
The month with the highest snowfall is February (6.14").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grand Blanc, MI
- Average snowfall days in December: 15.9 days
The month with the highest number of snowfall days is January (18 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 Blanc, 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: 3h and 1min
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 48min).
Average sunshine days in December
Grand Blanc, MI
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is January (8.4 days).
Average UV index in December
Grand Blanc, 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 and December (UV index 1).
Average cloud cover in December
Grand Blanc, MI
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Grand Blanc, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).
Grand Blanc, Michigan, USA
Weather forecast for your location
2. Allow the app to use your location