December weather forecastEphraim, UT
December
Weather in December
December, the first month of the winter in Ephraim, is still a freezing cold month, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 15.4°F (-9.2°C).Temperature
January and December bring Ephraim's lowest average temperatures, reaching a high of 31.5°F (-0.3°C).Humidity
The average relative humidity in December is 78%.Rainfall
In Ephraim, Utah, during December, the rain falls for 8.5 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Ephraim, during the entire year, the rain falls for 115.2 days and collects up to 15.71" (399mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 14.1 days. Throughout December, 9.88" (251mm) of snow is accumulated. Throughout the year, there are 66.3 snowfall days, and 48.94" (1243mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:27 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:13 pm MST.
Sunshine
In Ephraim, the average sunshine in December is 5.8h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be on the lookout! Nearly twofold UV radiation 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
Ephraim, UT
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The months with the lowest average high temperature are January and December (31.5°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Ephraim, UT
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Ephraim, UT
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in December
Ephraim, UT
- Average humidity in December: 78%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (35%).
Average rainfall in December
Ephraim, UT
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is March (1.73").
The driest month (with the least rainfall) is June (0.59").
Average rainfall days in December
Ephraim, UT
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is June (6.3 days).
Average snowfall in December
Ephraim, UT
- Average snowfall in December: 9.88"
The month with the highest snowfall is January (9.92").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Ephraim, UT
- Average snowfall days in December: 14.1 days
The month with the highest number of snowfall days is December (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
Ephraim, UT
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 48min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in December
Ephraim, UT
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is June (20.8 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in December
Ephraim, UT
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Ephraim, UT
- Average cloud cover in December: 39
The months with the most cloud cover are January and February (Cloud cover 40).
The months with the least cloud cover are August and September (Cloud cover 11).
Average visibility in December
Ephraim, UT
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
