December weather forecastBoulder City, NV
December
Weather in December
December brings the coldest temperatures to Boulder City, with an average low of 39.9°F (4.4°C). The reduced temperatures signal the official arrival of winter. The charm that comes with the cooler temperatures, shorter days, and festive atmosphere makes this month particularly significant. The minimal amount of rainfall and rare snowfall occurrences add to the near-perfect winter weather for the city. Despite the cold, the clarity and brightness of the smoke-free skies keep the days pleasant and enjoyable.Temperature
Boulder City experiences its lowest average temperatures in December, reaching a peak of 53.1°F (11.7°C) and a minimum of 39.9°F (4.4°C).Humidity
The average relative humidity in December in Boulder City is 44%.Rainfall
The months with the most rainfall in Boulder City are February, November and December, with an average 0.51" (13mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Boulder City.On the first day of December, sunrise is at 6:32 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 4:35 pm PST.
Sunshine
The month with the least sunshine in Boulder City is December, with an average of 7h of sunshine.UV index
The months with the lowest UV index in Boulder City are November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 3 in December translates into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Boulder City, NV
- Average high temperature in December: 53.1°F
The warmest month (with the highest average high temperature) is July (101.7°F).
The month with the lowest average high temperature is December (53.1°F).
- Average low temperature in December: 39.9°F
The month with the highest average low temperature is July (81.7°F).
The coldest month (with the lowest average low temperature) is December (39.9°F).
Average pressure in December
Boulder City, NV
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.77"Hg).
Average wind speed in December
Boulder City, NV
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is June (9.6mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).
Average humidity in December
Boulder City, NV
- Average humidity in December: 44%
The month with the highest relative humidity is January (46%).
The month with the lowest relative humidity is June (14%).
Average rainfall in December
Boulder City, NV
- Average rainfall in December: 0.51"
The wettest months (with the highest rainfall) are February, November and December (0.51").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Boulder City, NV
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is December (5.3 days).
The month with the least rainy days is June (0.4 days).
Average snowfall in December
Boulder City, NV
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.08").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Boulder City, NV
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Boulder City, NV
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 7h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in December
Boulder City, NV
- Average sunshine days in December: 25.2 days
The month with the most sunshine days is June (29.3 days).
The months with the least sunshine days are July and August (22.9 days).
Average UV index in December
Boulder City, NV
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
Boulder City, NV
- Average cloud cover in December: 20
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in December
Boulder City, NV
- 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).
