December weather forecastFrannie, WY
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Frannie, Wyoming, with an average temperature varying between 14.5°F (-9.7°C) and 27.5°F (-2.5°C).Temperature
December, noted for its average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 14.5°F (-9.7°C), is considered the coldest month.Humidity
In December, the average relative humidity is 77%.Rainfall
December is the month with the least rainfall. Rain falls for 8.6 days and accumulates 0.51" (13mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Frannie, during December, snow falls for 12.1 days and regularly aggregates up to 3.31" (84mm) of snow. Throughout the year, there are 64 snowfall days, and 19.92" (506mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:33 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:52 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
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Frannie, 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
Frannie, 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
Frannie, 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
Frannie, 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
Frannie, 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
Frannie, 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
Frannie, 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
Frannie, 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
Frannie, WY
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- 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
Frannie, 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
Frannie, 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
Frannie, 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
Frannie, 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).
