December weather forecastCasnovia, MI
December
Weather in December
The first month of the winter, December, is still a cold month in Casnovia, Michigan, with an average temperature ranging between min 25.7°F (-3.5°C) and max 33.3°F (0.7°C).Temperature
As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a frosty 44.6°F (7°C) to a wintry 33.3°F (0.7°C). Casnovia records a consistent average nighttime temperature of 25.7°F (-3.5°C) in December, slightly lower than the daytime high.Humidity
In December, the average relative humidity is 85%.Rainfall
In Casnovia, during December, the rain falls for 9.1 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Casnovia, Michigan, during the entire year, the rain falls for 154.5 days and collects up to 26.69" (678mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Casnovia. In December, it is snowing for 17.5 days. Throughout December, 5.63" (143mm) of snow is accumulated. In Casnovia, during the entire year, snow falls for 78.9 days and aggregates up to 27.36" (695mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:56 am and sunset at 5:08 pm. On the last day of December, sunrise is at 8:15 am and sunset at 5:17 pm EST.
Sunshine
In Casnovia, the average sunshine in December is 2.9h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Casnovia, MI
- Average high temperature in December: 33.3°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 (27.5°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Casnovia, MI
- Average pressure in December: 30.06"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
Casnovia, MI
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Casnovia, MI
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Casnovia, MI
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Casnovia, MI
- Average rainfall days in December: 9.1 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in December
Casnovia, MI
- Average snowfall in December: 5.63"
The month with the highest snowfall is January (8.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Casnovia, MI
- Average snowfall days in December: 17.5 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Casnovia, MI
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 2h and 54min
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 24min).
Average sunshine days in December
Casnovia, MI
- Average sunshine days in December: 8.2 days
The month with the most sunshine days is September (15.5 days).
The months with the least sunshine days are January and February (7.5 days).
Average UV index in December
Casnovia, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Casnovia, MI
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Casnovia, 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 month with the lowest visibility is January (4mi).





