December weather forecastEureka, UT
December
Weather in December
December, the first month of the winter in Eureka, is also an icy month, with an average temperature fluctuating between 17.8°F (-7.9°C) and 33.8°F (1°C).Temperature
Transition into December marks a drop in the average high-temperature, moving from a chilly 46.8°F (8.2°C) in November to a wintry 33.8°F (1°C). December nights in Eureka are marked by an average temperature drop to a freezing cold 17.8°F (-7.9°C).Humidity
In December, the average relative humidity in Eureka is 78%.Rainfall
In Eureka, in December, it is raining for 8.5 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, in Eureka, Utah, there are 99.7 rainfall days, and 11.61" (295mm) of precipitation is accumulated.Snowfall
Months with snowfall in Eureka are January through May, October through December. In Eureka, in December, during 12.1 snowfall days, 7.95" (202mm) of snow is typically accumulated. Throughout the year, in Eureka, there are 56.2 snowfall days, and 40.47" (1028mm) of snow is accumulated.Daylight
December has the shortest days of the year in Eureka, Utah, with an average of 9h and 24min of daylight.On the first day of December in Eureka, Utah, sunrise is at 7:31 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:13 pm MST.
Sunshine
In December, the average sunshine is 6.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Caution! The reflection of snow 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
Eureka, UT
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 17.8°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Eureka, UT
- Average pressure in December: 30.2"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Eureka, UT
- Average wind speed in December: 4.8mph
The windiest months (with the highest average wind speed) are April and June (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in December
Eureka, UT
- Average humidity in December: 78%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is June (34%).
Average rainfall in December
Eureka, UT
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is March (1.57").
The driest month (with the least rainfall) is June (0.43").
Average rainfall days in December
Eureka, UT
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is April (11.7 days).
The month with the least rainy days is June (5.3 days).
Average snowfall in December
Eureka, UT
- Average snowfall in December: 7.95"
The month with the highest snowfall is January (8.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Eureka, UT
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is December (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Eureka, UT
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 6h and 6min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in December
Eureka, UT
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is June (22 days).
The month with the least sunshine days is February (13.9 days).
Average UV index in December
Eureka, UT
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Eureka, UT
- Average cloud cover in December: 37
The months with the most cloud cover are January and December (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Eureka, 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).
