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
In Mountain View, the average high-temperature in December gently drops from a refreshing 57.4°F (14.1°C) in November to a cool 50°F (10°C). Mountain View's nights in December cool down to an average low-temperature of 35.2°F (1.8°C).Humidity
The months with the highest humidity are May and December, with an average relative humidity of 76%.Rainfall
In Mountain View, during December, the rain falls for 11 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Mountain View, during the entire year, the rain falls for 163.1 days and collects up to 32.01" (813mm) of precipitation.Snowfall
Months with snowfall in Mountain View are January through March, November and December. The month with the most snowfall in Mountain View is December, when snow falls for 0.8 days and typically aggregates up to 2.28" (58mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Mountain View.On the first day of the month, sunrise is at 7:17 am and sunset at 5:12 pm. On the last day of December, sunrise is at 7:35 am and sunset at 5:22 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 5.5h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, a regular UV index of 2 translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the temperature in December in Mountain View?
What are the most humid months in Mountain View?
What is the average humidity in December in Mountain View?
How many days does it rain in December in Mountain View?
When does it snow the most in Mountain View?
How much does it snow in Mountain View in December?
What is the month with the shortest days in Mountain View?
How many hours of daylight does Mountain View have in December?
When are sunrise and sunset in December in Mountain View?
What is the month with the least sunshine in Mountain View?
How long on average sun shines in December in Mountain View?
When is the lowest UV index in Mountain View?
What is the UV index reading in December in Mountain View?
Average temperature in December
Mountain View, NC
- Average high temperature in December: 50°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Mountain View, NC
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Mountain View, NC
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Mountain View, NC
- Average humidity in December: 76%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Mountain View, NC
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is October (1.97").
Average rainfall days in December
Mountain View, NC
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in December
Mountain View, NC
- Average snowfall in December: 2.28"
The month with the highest snowfall is December (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Mountain View, NC
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Mountain View, NC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Mountain View, NC
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Mountain View, NC
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Mountain View, NC
- Average cloud cover in December: 41
The months with the most cloud cover are February, March and December (Cloud cover 41).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Mountain View, NC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Mountain View, North Carolina, USA
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