December weather forecastMendon, MI
December
Weather in December
The first month of the winter, December, is also an icy month in Mendon, Michigan, with an average temperature fluctuating between 26.1°F (-3.3°C) and 34.9°F (1.6°C).Temperature
Mendon in December experiences a subtle temperature decline, with average high-temperatures reducing from a frosty 45.7°F (7.6°C) in November to a cold 34.9°F (1.6°C). Mendon maintains a minor drop in temperature during December nights, with averages of 26.1°F (-3.3°C).Humidity
The average relative humidity in December in Mendon is 84%.Rainfall
In Mendon, in December, it is raining for 7.7 days, with typically 1.06" (27mm) of accumulated precipitation. In Mendon, during the entire year, the rain falls for 139.9 days and collects up to 20.63" (524mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Mendon. In December, in Mendon, it is snowing for 11.2 days. Throughout December, 1.85" (47mm) of snow is accumulated. In Mendon, during the entire year, snow falls for 53.3 days and aggregates up to 11.77" (299mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:50 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 5:20 pm EST.
Sunshine
In December, the average sunshine is 3.3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mendon, MI
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Mendon, MI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Mendon, MI
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in December
Mendon, MI
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are March, April and October (77%).
Average rainfall in December
Mendon, MI
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in December
Mendon, MI
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in December
Mendon, MI
- Average snowfall in December: 1.85"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mendon, MI
- Average snowfall days in December: 11.2 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mendon, MI
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 3h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Mendon, MI
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is March (15.2 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in December
Mendon, MI
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Mendon, MI
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Mendon, MI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
