December weather forecast
Casnovia, MI

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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.

Frequently asked questions

How cold is December?

The average high-temperature, in December, in Casnovia, is 33.3°F (0.7°C), while the average low-temperature is 25.7°F (-3.5°C).

What is the average humidity in December?

The average relative humidity in December is 85%.

How much does it rain in December?

In Casnovia, in December, it is raining for 9.1 days, with typically 2.05" (52mm) of accumulated precipitation.

How many days does it snow in December?

In Casnovia, in December, snow falls for 17.5 days, with typically accumulated 5.63" (143mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

What is the average length of the day in December?

In Casnovia, the average day length in December is 9h and 2min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:56 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 8:15 am and sunset at 5:17 pm EST.

How many hours of sunshine does Casnovia have in December?

In December, the average sunshine duration is 2.9h.

When is the lowest UV index?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.

What is the UV index reading in December in Casnovia?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Casnovia, MI

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 5min

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 - 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 - 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 - 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 - 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).

Casnovia, Michigan, USA

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