December weather forecastDexter, MI
December
Weather in December
December, the first month of the winter in Dexter, is still a cold month, with an average temperature fluctuating between 34.3°F (1.3°C) and 25.3°F (-3.7°C).Temperature
The shift from November to December involves a decrease in the average high-temperature, dropping from a chilly 45.3°F (7.4°C) to an icy 34.3°F (1.3°C). Dexter's nights throughout December are marked by an average low temperature of 25.3°F (-3.7°C), a minor drop from the day's high.Humidity
The average relative humidity in December is 84%.Rainfall
The month with the least rainfall is December, when the rain falls for 8 days and typically collects 0.91" (23mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Dexter, in December, snow falls for 13.4 days, with typically accumulated 2.17" (55mm) of snow. In Dexter, Michigan, during the entire year, snow falls for 61.5 days and aggregates up to 14.06" (357mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:45 am and sunset at 5:04 pm. On the last day of December, sunrise is at 8:04 am and sunset at 5:13 pm EST.
Sunshine
In December, the average sunshine is 3.4h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 suggests these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dexter, MI
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Dexter, MI
- Average pressure in December: 30.08"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Dexter, MI
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in December
Dexter, MI
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Dexter, MI
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days in December
Dexter, MI
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Dexter, MI
- Average snowfall in December: 2.17"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dexter, MI
- Average snowfall days in December: 13.4 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dexter, MI
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Dexter, MI
- Average sunshine days in December: 12.6 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (10 days).
Average UV index in December
Dexter, MI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Dexter, MI
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Dexter, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
