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
During the coldest month, December, temperatures average a high of 28.9°F (-1.7°C) and a low of 16.3°F (-8.7°C).Humidity
In December, the average relative humidity is 85%.Rainfall
In December, in Arbon, the rain falls for 8.1 days. Throughout December, 1.5" (38mm) of precipitation is accumulated. Throughout the year, in Arbon, there are 118.3 rainfall days, and 16.42" (417mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, in Arbon, it is snowing for 15.6 days. Throughout December, 9.88" (251mm) of snow is accumulated. Throughout the year, in Arbon, there are 68.7 snowfall days, and 48.82" (1240mm) of snow is accumulated.Daylight
The month with the shortest days in Arbon is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:40 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:07 pm MST.
Sunshine
The average sunshine in December is 5h.UV index
In Arbon, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Arbon?
How cold is December in Arbon?
What is the average humidity in December in Arbon?
How many days does it rain in December in Arbon?
How many days does it snow in December in Arbon?
What is the month with the shortest days in Arbon?
How many hours of daylight does Arbon have in December?
When is the sunrise / sunset in December in Arbon?
How long on average sun shines in December in Arbon?
What is the UV index intensity in December in Arbon?
Average temperature in December
Arbon, ID
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in December: 16.3°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Arbon, ID
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Arbon, ID
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in December
Arbon, ID
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (35%).
Average rainfall in December
Arbon, ID
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in December
Arbon, ID
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Arbon, ID
- Average snowfall in December: 9.88"
The month with the highest snowfall is January (13.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Arbon, ID
- Average snowfall days in December: 15.6 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Arbon, ID
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 5h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Arbon, ID
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is February (9.9 days).
Average UV index in December
Arbon, ID
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Arbon, ID
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
Arbon, ID
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Arbon, Idaho, USA
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