December weather forecast
Vassar, MI

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Weather in December

The first month of the winter, December, is still a cold month in Vassar, Michigan, with an average temperature ranging between max 33.1°F (0.6°C) and min 24.6°F (-4.1°C).

Temperature

The arrival of December corresponds with a temperature reduction, down from November's frosty 43.9°F (6.6°C) to a cold 33.1°F (0.6°C). Vassar observes a minimal variance in temperature, with a consistent average low of 24.6°F (-4.1°C) during the nights of December.

Humidity

In December, the average relative humidity in Vassar is 84%.

Rainfall

The month with the least rainfall is December, when the rain falls for 8.2 days and typically collects 1.06" (27mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Vassar, in December, during 14.7 snowfall days, 2.68" (68mm) of snow is typically accumulated. In Vassar, during the entire year, snow falls for 69 days and aggregates up to 16.77" (426mm) of snow.

Daylight

The month with the shortest days in Vassar, Michigan, is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:47 am and sunset at 4:59 pm. On the last day of December, in Vassar, Michigan, sunrise is at 8:06 am and sunset at 5:08 pm EST.

Sunshine

In December, the average sunshine is 3.1h.

UV index

The months with the lowest UV index in Vassar are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 1 suggests these recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

How cold is it in Vassar in December?

The average high-temperature and low-temperature during December are 33.1°F (0.6°C) and 24.6°F (-4.1°C) respectively.

What is the average humidity in December in Vassar?

The average relative humidity in December in Vassar is 84%.

What is the driest month in Vassar?

The month with the least rainfall in Vassar, Michigan, is December, when the rain falls for 8.2 days and typically collects 1.06" (27mm) of precipitation.

How much does it rain in Vassar in December?

In Vassar, during December, the rain falls for 8.2 days and regularly aggregates up to 1.06" (27mm) of precipitation.

How much does it snow in Vassar in December?

In December, in Vassar, it is snowing for 14.7 days. Throughout December, 2.68" (68mm) of snow is accumulated.

What is the month with the shortest days in Vassar?

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 Vassar?

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

What time are sunrise and sunset in December in Vassar?

In December, on the first day of the month, sunrise is at 7:47 am and sunset at 4:59 pm. On the last day of the month, in Vassar, sunrise is at 8:06 am and sunset at 5:08 pm EST.

How many hours of sunshine does Vassar have in December?

The average sunshine duration in December in Vassar, Michigan, is 3.1h.

When is the lowest UV index in Vassar?

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

What is the UV index intensity in December in Vassar?

In December, the average daily maximum UV index in Vassar is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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
Vassar, MI

Average temperature in December - Vassar, MI
  • Average high temperature in December: 33.1°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 24.6°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in December
Vassar, MI

Average pressure in December - Vassar, 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 (29.93"Hg).

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Average wind speed in December
Vassar, MI

Average wind speed in December - Vassar, MI
  • Average wind speed in December: 10.1mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in December
Vassar, MI

Average humidity in December - Vassar, MI
  • Average humidity in December: 84%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in December
Vassar, MI

Average rainfall in December - Vassar, MI
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is December (1.06").

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Average rainfall days in December
Vassar, MI

Average rainfall days in December - Vassar, MI
  • Average rainfall days in December: 8.2 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (4.5 days).

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Average snowfall in December
Vassar, MI

Average snowfall in December - Vassar, MI
  • Average snowfall in December: 2.68"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Vassar, MI

Average snowfall days in December - Vassar, MI
  • Average snowfall days in December: 14.7 days

The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Vassar, MI

Average daylight in December / Average sunshine in December - Vassar, MI
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 3h and 1min

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).

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Average sunshine days in December
Vassar, MI

Average sunshine days in December - Vassar, MI
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is February (8.9 days).

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Average UV index in December
Vassar, MI

Average UV index in December - Vassar, MI
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Vassar, MI

Average cloud cover in December - Vassar, MI
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in December
Vassar, MI

Average visibility in December - Vassar, MI
  • Average visibility in December: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Vassar, Michigan, USA

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