December weather forecast and climate
Buffalo, WY

Weather in December

December, the first month of the winter, in Buffalo, is also a subzero cold month, with temperature in the range of an average high of 29.1°F (-1.6°C) and an average low of 15.4°F (-9.2°C).

Temperature

In Buffalo, the average high-temperature decreases, from a wintry 39.4°F (4.1°C) in November, to a freezing cold 29.1°F (-1.6°C). The average low-temperature, in Buffalo, is 15.4°F (-9.2°C).

Humidity

The average relative humidity in December is 71%.

Rainfall

December is the month with the least rainfall in Buffalo. Rain falls for 5 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

Months with snowfall in Buffalo are January through June, September through December. In Buffalo, during December, snow falls for 10.7 days and regularly aggregates up to 2.64" (67mm) of snow. Throughout the year, there are 78 snowfall days, and 39.13" (994mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 8.9h of daylight.

Sunshine

The average sunshine in December is 6.5h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Buffalo. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Buffalo?

In December, the average relative humidity in Buffalo is 71%.

What is the driest month in Buffalo?

December is the month with the least rainfall in Buffalo, Wyoming. Rain falls for 5 days and accumulates 0.47" (12mm) of precipitation.

How many days does it rain in December in Buffalo?

In Buffalo, Wyoming, in December, it is raining for 5 days, with typically 0.47" (12mm) of accumulated precipitation.

How much does it snow in Buffalo in December?

In December, in Buffalo, Wyoming, it is snowing for 10.7 days. Throughout December, 2.64" (67mm) of snow is accumulated.

What is the month with the shortest days in Buffalo?

December has the shortest days of the year in Buffalo, Wyoming, with an average of 8.9h of daylight.

How many hours of daylight does Buffalo have in December?

In Buffalo, Wyoming, the average length of the day in December is 8.9h.

How long on average sun shines in December in Buffalo?

In Buffalo, Wyoming, the average sunshine in December is 6.5h.

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

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December in Buffalo?

In December, the average daily maximum UV index in Buffalo, Wyoming, is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.

Average temperature in December
Buffalo, WY

Average temperature in December - Buffalo, WY
  • Average high temperature in December: -1.6°C

The warmest month (with the highest average high temperature) is July (26°C).
The month with the lowest average high temperature is February (-1.7°C).

  • Average low temperature in December: -9.2°C

The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is February (-10°C).

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Average pressure in December
Buffalo, WY

Average pressure in December - Buffalo, WY
  • Average pressure in December: 1020.2mbar

The month with the highest atmospheric pressure is January (1020.4mbar).
The month with the lowest atmospheric pressure is June (1010.8mbar).

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Average wind speed in December
Buffalo, WY

Average wind speed in December - Buffalo, WY
  • Average wind speed in December: 11.4km/h

The windiest month (with the highest average wind speed) is April (12.5km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).

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Average humidity in December
Buffalo, WY

Average humidity in December - Buffalo, WY
  • Average humidity in December: 71%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in December
Buffalo, WY

Average rainfall in December - Buffalo, WY
  • Average rainfall in December: 12mm

The wettest month (with the highest rainfall) is May (85mm).
The driest month (with the least rainfall) is December (12mm).

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Average rainfall days in December
Buffalo, WY

Average rainfall days in December - Buffalo, WY
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is May (21.2 days).
The month with the least rainy days is December (5 days).

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Average snowfall in December
Buffalo, WY

Average snowfall in December - Buffalo, WY
  • Average snowfall in December: 67mm

The month with the highest snowfall is April (179mm).
Months with the least snowfall are July and August (0mm).

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Average snowfall days in December
Buffalo, WY

Average snowfall days in December - Buffalo, WY
  • Average snowfall days in December: 10.7 days

The month with the highest number of snowfall days is February (13.7 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in December /
Average sunshine in December
Buffalo, WY

Average daylight in December / Average sunshine in December - Buffalo, WY
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in December: 6.5h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.3h).

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Average sunshine days in December
Buffalo, WY

Average sunshine days in December - Buffalo, WY
  • Average sunshine days in December: 19.4 days

The month with the most sunshine days is December (19.4 days).
The month with the least sunshine days is May (5.5 days).

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Average UV index in December
Buffalo, WY

Average UV index in December - Buffalo, WY
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in December
Buffalo, WY

Average cloud cover in December - Buffalo, WY
  • Average cloud cover in December: 31

The month with the most cloud cover is April (Cloud cover 38).
Months with the least cloud cover are July and September (Cloud cover 17).

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Average visibility in December
Buffalo, WY

Average visibility in December - Buffalo, WY
  • Average visibility in December: 9km

Months with the highest visibility are June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March, April, May, November and December (9km).

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