December weather forecastByron, WY
December
Weather in December
December, the first month of the winter in Byron, is also a subzero cold month, with an average temperature ranging between min 14.5°F (-9.7°C) and max 27.5°F (-2.5°C).Temperature
Byron experiences its lowest temperatures in December, with an average peak of 27.5°F (-2.5°C) and a low of 14.5°F (-9.7°C).Humidity
The average relative humidity in December is 77%.Rainfall
The month with the least rainfall in Byron is December, when the rain falls for 8.6 days and typically collects 0.51" (13mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Byron, Wyoming. In Byron, in December, snow falls for 12.1 days, with typically accumulated 3.31" (84mm) of snow. In Byron, during the entire year, snow falls for 64 days and aggregates up to 19.92" (506mm) of snow.Daylight
The month with the shortest days in Byron is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:32 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:43 pm MST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 6.4h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Byron. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Byron, WY
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is December (27.5°F).
- Average low temperature in December: 14.5°F
The month with the highest average low temperature is July (61°F).
The coldest months (with the lowest average low temperature) are January and February (14.4°F).
Average pressure in December
Byron, WY
- Average pressure in December: 30.15"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Byron, WY
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Byron, WY
- Average humidity in December: 77%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (37%).
Average rainfall in December
Byron, WY
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is December (0.51").
Average rainfall days in December
Byron, WY
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in December
Byron, WY
- Average snowfall in December: 3.31"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Byron, WY
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Byron, WY
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 6h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 24min).
Average sunshine days in December
Byron, WY
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in December
Byron, WY
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Byron, WY
- Average cloud cover in December: 32
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in December
Byron, WY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
