December weather forecast
Gaastra, MI

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Weather in December

December, the first month of the winter in Gaastra, is also a subzero cold month, with an average temperature varying between 15.6°F (-9.1°C) and 24.6°F (-4.1°C).

Temperature

Gaastra's December weather comes with a decrease in average high-temperatures, moving from a wintry 36.3°F (2.4°C) in November to a subzero cold 24.6°F (-4.1°C). Gaastra's nocturnal readings in December exhibit minimal variation from the daytime temperatures, averaging at a still freezing cold 15.6°F (-9.1°C).

Humidity

In December, the average relative humidity is 88%.

Rainfall

In December, in Gaastra, the rain falls for 4.9 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 120.5 rainfall days, and 19.17" (487mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 21 days and typically aggregates up to 7.32" (186mm) of snow.

Daylight

December has the shortest days of the year in Gaastra, with an average of 8h and 42min of daylight.
On the first day of December in Gaastra, sunrise is at 7:16 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:19 pm CST.

Sunshine

In December, the average sunshine is 2.4h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Gaastra. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 1 in December translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

How cold is December in Gaastra?

During December, Gaastra experiences an average high-temperature of 24.6°F (-4.1°C) and a low-temperature of 15.6°F (-9.1°C).

What is the average humidity in December in Gaastra?

The average relative humidity in December in Gaastra, Michigan, is 88%.

How much does it rain in Gaastra in December?

In December, in Gaastra, the rain falls for 4.9 days. Throughout December, 1.18" (30mm) of precipitation is accumulated.

When does it snow the most in Gaastra?

The month with the most snowfall is December, when snow falls for 21 days and typically aggregates up to 7.32" (186mm) of snow.

How many days does it snow in December in Gaastra?

In Gaastra, Michigan, during December, snow falls for 21 days and regularly aggregates up to 7.32" (186mm) of snow.

What is the month with the shortest days in Gaastra?

December has the shortest days of the year in Gaastra, Michigan, with an average of 8h and 42min of daylight.

What is the average length of the day in December in Gaastra?

The average day length in December in Gaastra is 8h and 43min.

What time are sunrise and sunset in December in Gaastra?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 4:10 pm. On the last day of the month, in Gaastra, Michigan, sunrise is at 7:36 am and sunset at 4:19 pm CST.

How long on average sun shines in December in Gaastra?

In December, the average sunshine duration in Gaastra, Michigan, is 2.4h.

When is the lowest UV index in Gaastra?

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

How high is the UV index in December in Gaastra?

The average daily maximum UV index in December in Gaastra is 1. A UV Index estimate of 2, and below, represents 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
Gaastra, MI

Average temperature in December - Gaastra, MI
  • Average high temperature in December: 24.6°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (19.6°F).

  • Average low temperature in December: 15.6°F

The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).

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Average pressure in December
Gaastra, MI

Average pressure in December - Gaastra, MI
  • Average pressure in December: 30.05"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Gaastra, MI

Average wind speed in December - Gaastra, MI
  • Average wind speed in December: 8.2mph

The windiest months (with the highest average wind speed) are January and November (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

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Average humidity in December
Gaastra, MI

Average humidity in December - Gaastra, MI
  • Average humidity in December: 88%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (71%).

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Average rainfall in December
Gaastra, MI

Average rainfall in December - Gaastra, MI
  • Average rainfall in December: 1.18"

The wettest months (with the highest rainfall) are May and June (2.24").
The driest month (with the least rainfall) is January (0.91").

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Average rainfall days in December
Gaastra, MI

Average rainfall days in December - Gaastra, MI
  • Average rainfall days in December: 4.9 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in December
Gaastra, MI

Average snowfall in December - Gaastra, MI
  • Average snowfall in December: 7.32"

The month with the highest snowfall is December (7.32").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Gaastra, MI

Average snowfall days in December - Gaastra, MI
  • Average snowfall days in December: 21 days

The month with the highest number of snowfall days is January (23.9 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
Gaastra, MI

Average daylight in December / Average sunshine in December - Gaastra, MI
  • Average daylight in December: 8h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in December: 2h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).

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Average sunshine days in December
Gaastra, MI

Average sunshine days in December - Gaastra, MI
  • Average sunshine days in December: 10.3 days

The month with the most sunshine days is September (14.5 days).
The months with the least sunshine days are January and February (7.8 days).

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Average UV index in December
Gaastra, MI

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

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

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Average cloud cover in December
Gaastra, MI

Average cloud cover in December - Gaastra, MI
  • Average cloud cover in December: 76

The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 37).

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Average visibility in December
Gaastra, MI

Average visibility in December - Gaastra, MI
  • Average visibility in December: 5mi

The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January and February (4mi).

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Gaastra, Michigan, USA

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