Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December is the coldest month, with the temperature often reaching an average high of 43.9°F (6.6°C) and an average low of 28.9°F (-1.7°C).Humidity
In December, the average relative humidity is 61%.Rainfall
In Rockville, in December, it is raining for 6.1 days, with typically 1.06" (27mm) of accumulated precipitation. In Rockville, during the entire year, the rain falls for 73.7 days and collects up to 9.88" (251mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Rockville, in December, snow falls for 5.9 days, with typically accumulated 4.65" (118mm) of snow. Throughout the year, in Rockville, Utah, there are 24 snowfall days, and 21.93" (557mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 7:27 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:25 pm MST.
Sunshine
January and December, with an average of 7h of sunshine, are months with the least sunshine in Rockville.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the coldest time of year in Rockville?
Is it cold in Rockville during December?
What is the average humidity in December in Rockville?
How many days does it rain in December in Rockville?
How many days does it snow in December in Rockville?
What is the month with the shortest days in Rockville?
What is the average length of the day in December in Rockville?
What time are sunrise and sunset in December in Rockville?
What is the month with the least sunshine in Rockville?
How many hours of sunshine does Rockville have in December?
When is the lowest UV index in Rockville?
What is the UV index reading in December in Rockville?
Average temperature in December
Rockville, UT
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (43.9°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (69.4°F).
The coldest months (with the lowest average low temperature) are January and December (28.9°F).
Average pressure in December
Rockville, UT
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Rockville, UT
- Average wind speed in December: 5.3mph
The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in December
Rockville, UT
- Average humidity in December: 61%
The month with the highest relative humidity is January (64%).
The month with the lowest relative humidity is June (20%).
Average rainfall in December
Rockville, UT
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is March (1.14").
The driest month (with the least rainfall) is June (0.16").
Average rainfall days in December
Rockville, UT
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is July (10.9 days).
The month with the least rainy days is June (2.3 days).
Average snowfall in December
Rockville, UT
- Average snowfall in December: 4.65"
The month with the highest snowfall is February (6.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Rockville, UT
- Average snowfall days in December: 5.9 days
The months with the highest number of snowfall days are February and December (5.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rockville, UT
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 7h and 0min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 7h and 0min).
Average sunshine days in December
Rockville, UT
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is June (25.3 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in December
Rockville, UT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Rockville, UT
- Average cloud cover in December: 22
The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 6).
Average visibility in December
Rockville, UT
- 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).
Rockville, Utah, USA
Weather forecast for your location
2. Allow the app to use your location
