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
The onset of December comes with a shift in the average high-temperature, falling from a wintry 36.5°F (2.5°C) in November to a subzero cold 24.8°F (-4°C). A mean low-temperature of 16.5°F (-8.6°C) is anticipated during the month of December, a slight step down from the daytime high.Humidity
In Thomaston, the average relative humidity in December is 89%.Rainfall
In December, the rain falls for 3.2 days. Throughout December, 1.61" (41mm) of precipitation is accumulated. In Thomaston, during the entire year, the rain falls for 112.5 days and collects up to 22.68" (576mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 21.5 days and accumulates 10.63" (270mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Thomaston.On the first day of the month, sunrise is at 7:23 am and sunset at 4:14 pm. On the last day of December, sunrise is at 7:43 am and sunset at 4:22 pm CST.
Sunshine
The average sunshine in December is 1.7h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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 in Thomaston?
How much does it rain in December?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Thomaston, MI
- Average high temperature in December: 24.8°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in December: 16.5°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in December
Thomaston, MI
- Average pressure in December: 30.06"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Thomaston, MI
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are June, July and August (7.1mph).
Average humidity in December
Thomaston, MI
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Thomaston, MI
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in December
Thomaston, MI
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is August (14.4 days).
The month with the least rainy days is February (1.5 days).
Average snowfall in December
Thomaston, MI
- Average snowfall in December: 10.63"
The month with the highest snowfall is December (10.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Thomaston, MI
- Average snowfall days in December: 21.5 days
The month with the highest number of snowfall days is January (23.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Thomaston, MI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 1h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in December
Thomaston, MI
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is July (15.5 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in December
Thomaston, 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, March, November and December (UV index 1).
Average cloud cover in December
Thomaston, MI
- Average cloud cover in December: 82
The month with the most cloud cover is January (Cloud cover 85).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Thomaston, MI
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
Thomaston, Michigan, USA
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