December weather forecast
Byron, NY

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Weather in December

December, the first month of the winter in Byron, is still a cold month, with an average temperature varying between 25.9°F (-3.4°C) and 35.4°F (1.9°C).

Temperature

The commencement of December involves a temperature shift, with the average high-temperature dropping from a chilly 45.7°F (7.6°C) in November to a wintry 35.4°F (1.9°C). Throughout December nights, Byron experiences a consistent temperature average of 25.9°F (-3.4°C).

Humidity

In Byron, the average relative humidity in December is 85%.

Rainfall

In Byron, in December, during 6.9 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, in Byron, there are 127.4 rainfall days, and 16.57" (421mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Byron, New York, in December, snow falls for 11.5 days, with typically accumulated 2.91" (74mm) of snow. Throughout the year, there are 60.1 snowfall days, and 17.01" (432mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:38 pm. On the last day of December, in Byron, sunrise is at 7:43 am and sunset at 4:47 pm EST.

Sunshine

The average sunshine in December in Byron is 2.9h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily UV index of 1 turns into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. Always opt for UVA and UVB-resistant sunglasses on radiant days. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
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Frequently asked questions

How cold is December in Byron?

The high-temperature, in December, in Byron, records 35.4°F (1.9°C), while the low-temperature is 25.9°F (-3.4°C).

What is the average humidity in December in Byron?

In Byron, the average relative humidity in December is 85%.

How much does it rain in Byron in December?

In Byron, in December, during 6.9 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

How much does it snow in Byron in December?

In Byron, New York, in December, snow falls for 11.5 days, with typically accumulated 2.91" (74mm) of snow.

What is the month with the shortest days in Byron?

December has the shortest days of the year in Byron, with an average of 9h and 6min of daylight.

How many hours of daylight does Byron have in December?

The average day length in December in Byron, New York, is 9h and 4min.

What time are sunrise and sunset in December in Byron?

In December, on the first day of the month, sunrise is at 7:24 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:47 pm EST.

How many hours of sunshine does Byron have in December?

In Byron, the average sunshine duration in December is 2.9h.

What are the months with the lowest UV index in Byron?

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

What is the UV index reading in December in Byron?

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
Byron, NY

Average temperature in December - Byron, NY
  • Average high temperature in December: 35.4°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in December
Byron, NY

Average pressure in December - Byron, NY
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Byron, NY

Average wind speed in December - Byron, NY
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July, August and September (6.5mph).

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Average humidity in December
Byron, NY

Average humidity in December - Byron, NY
  • Average humidity in December: 85%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are May and July (77%).

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Average rainfall in December
Byron, NY

Average rainfall in December - Byron, NY
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.83").

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Average rainfall days in December
Byron, NY

Average rainfall days in December - Byron, NY
  • Average rainfall days in December: 6.9 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (4.3 days).

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Average snowfall in December
Byron, NY

Average snowfall in December - Byron, NY
  • Average snowfall in December: 2.91"

The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Byron, NY

Average snowfall days in December - Byron, NY
  • Average snowfall days in December: 11.5 days

The month with the highest number of snowfall days is February (14.3 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, NY

Average daylight in December / Average sunshine in December - Byron, NY
  • Average daylight in December: 9h and 1min

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 6min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).

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Average sunshine days in December
Byron, NY

Average sunshine days in December - Byron, NY
  • Average sunshine days in December: 15.3 days

The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (11 days).

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Average UV index in December
Byron, NY

Average UV index in December - Byron, NY
  • 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 and December (UV index 1).

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Average cloud cover in December
Byron, NY

Average cloud cover in December - Byron, NY
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in December
Byron, NY

Average visibility in December - Byron, NY
  • Average visibility in December: 6mi

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

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Byron, New York, USA

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