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
The arrival of December signals a shift in temperature, down from a frosty 47.1°F (8.4°C) in November to a cold 37.6°F (3.1°C). During December, the temperature is averaged to a low of 26.2°F (-3.2°C) at night.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 83%.Rainfall
In December, the rain falls for 11.4 days. Throughout December, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 166.6 rainfall days, and 32.6" (828mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Mountainhome, during December, snow falls for 7.4 days and regularly aggregates up to 3.46" (88mm) of snow. In Mountainhome, during the entire year, snow falls for 40.3 days and aggregates up to 20.47" (520mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December in Mountainhome, sunrise is at 7:07 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:42 pm EST.
Sunshine
In December, the average sunshine is 4.4h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 1 in December translates into these instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Around midday, solar radiation is most harmful; hence, exposure should be limited. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What are the most humid months in Mountainhome?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Mountainhome have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Mountainhome have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Mountainhome, PA
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Mountainhome, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Mountainhome, PA
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Mountainhome, PA
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Mountainhome, PA
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Mountainhome, PA
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in December
Mountainhome, PA
- Average snowfall in December: 3.46"
The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mountainhome, PA
- Average snowfall days in December: 7.4 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mountainhome, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Mountainhome, PA
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in December
Mountainhome, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Mountainhome, PA
- Average cloud cover in December: 54
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Mountainhome, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Mountainhome, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location