December weather forecast
Byron, MN

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Weather in December

The first month of the winter, December, is also a subzero cold month in Byron, Minnesota, with temperature in the range of an average low of 15.6°F (-9.1°C) and an average high of 25.9°F (-3.4°C).

Temperature

The onset of December marks a clear decrease in the average high-temperature, dropping from a cold 41°F (5°C) in November to a freezing cold 25.9°F (-3.4°C). December nights are marked by an average temperature drop to a still subzero cold 15.6°F (-9.1°C).

Humidity

In December, the average relative humidity in Byron is 88%.

Rainfall

In Byron, in December, during 5.5 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 144.2 rainfall days, and 28.98" (736mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Byron, in December, during 15.8 snowfall days, 5.31" (135mm) of snow is typically accumulated. In Byron, during the entire year, snow falls for 74.1 days and aggregates up to 29.69" (754mm) of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Byron, Minnesota.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:33 pm. On the last day of December, in Byron, sunrise is at 7:45 am and sunset at 4:42 pm CST.

Sunshine

The average sunshine in December in Byron is 3.7h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Byron. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 1 suggests these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

How cold is it in Byron in December?

The high-temperature in Byron, Minnesota, during December is 25.9°F (-3.4°C) and the low-temperature is 15.6°F (-9.1°C).

What is the average humidity in December in Byron?

In December, the average relative humidity in Byron is 88%.

How much does it rain in Byron in December?

In Byron, Minnesota, in December, during 5.5 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

How many days does it snow in December in Byron?

In Byron, during December, snow falls for 15.8 days and regularly aggregates up to 5.31" (135mm) of snow.

What is the month with the shortest days in Byron?

With an average of 9h and 0min of daylight, December has the shortest days of the year in Byron, Minnesota.

How many hours of daylight does Byron have in December?

The average day length in December in Byron is 8h and 57min.

What time are sunrise and sunset in December in Byron?

On the first day of December in Byron, sunrise is at 7:26 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:42 pm CST.

How many hours of sunshine does Byron have in December?

The average sunshine duration in December in Byron is 3.7h.

What is the month with the lowest UV index in Byron?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Byron, Minnesota.

What is the UV index intensity in December in Byron?

The average daily maximum UV index in December in Byron, Minnesota, is 1. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
Byron, MN

Average temperature in December - Byron, MN
  • Average high temperature in December: 25.9°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in December: 15.6°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).

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Average pressure in December
Byron, MN

Average pressure in December - Byron, MN
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in December
Byron, MN

Average wind speed in December - Byron, MN
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.4mph).

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Average humidity in December
Byron, MN

Average humidity in December - Byron, MN
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in December
Byron, MN

Average rainfall in December - Byron, MN
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is June (5").
The driest month (with the least rainfall) is January (1.02").

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Average rainfall days in December
Byron, MN

Average rainfall days in December - Byron, MN
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is June (19.5 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in December
Byron, MN

Average snowfall in December - Byron, MN
  • Average snowfall in December: 5.31"

The month with the highest snowfall is February (8.23").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Byron, MN

Average snowfall days in December - Byron, MN
  • Average snowfall days in December: 15.8 days

The month with the highest number of snowfall days is January (17.2 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
Byron, MN

Average daylight in December / Average sunshine in December - Byron, MN
  • 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 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

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Average sunshine days in December
Byron, MN

Average sunshine days in December - Byron, MN
  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is June (7.8 days).

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Average UV index in December
Byron, MN

Average UV index in December - Byron, MN
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in December
Byron, MN

Average cloud cover in December - Byron, MN
  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in December
Byron, MN

Average visibility in December - Byron, MN
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Byron, Minnesota, USA

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