December weather forecastGrayling, MI
December
Weather in December
December, the first month of the winter in Grayling, is still a freezing cold month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 21.6°F (-5.8°C).Temperature
As November transitions into December, Grayling sees a drop in the average high-temperature, transitioning from a cold 40.6°F (4.8°C) to a subzero cold 29.7°F (-1.3°C). December nights witness a slight temperature decrease, averaging at a still freezing cold 21.6°F (-5.8°C).Humidity
In Grayling, the average relative humidity in December is 88%.Rainfall
In December, the rain falls for 6.9 days. Throughout December, 1.65" (42mm) of precipitation is accumulated. In Grayling, Michigan, during the entire year, the rain falls for 132.1 days and collects up to 21.81" (554mm) of precipitation.Snowfall
Months with snowfall in Grayling are January through May, October through December. In Grayling, in December, during 19.6 snowfall days, 7.83" (199mm) of snow is typically accumulated. Throughout the year, there are 98.2 snowfall days, and 37.95" (964mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:56 am and sunset at 4:59 pm. On the last day of December, in Grayling, sunrise is at 8:15 am and sunset at 5:08 pm EST.
Sunshine
In December, the average sunshine in Grayling is 2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 1 in December transforms into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grayling, MI
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 21.6°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Grayling, MI
- Average pressure in December: 30.04"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
Grayling, MI
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in December
Grayling, MI
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Grayling, MI
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is October (2.68").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in December
Grayling, MI
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Grayling, MI
- Average snowfall in December: 7.83"
The month with the highest snowfall is January (9.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grayling, MI
- Average snowfall days in December: 19.6 days
The month with the highest number of snowfall days is January (23.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grayling, MI
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 2h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in December
Grayling, MI
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is January (7 days).
Average UV index in December
Grayling, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Grayling, MI
- Average cloud cover in December: 79
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Grayling, MI
- Average visibility in December: 4mi
The months with the highest visibility are April, May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).
