December weather forecastSweet, ID
December
Weather in December
The first month of the winter, December, is still a cold month in Sweet, Idaho, with an average temperature varying between 22.8°F (-5.1°C) and 34.9°F (1.6°C).Temperature
The coldest period tends to be December, when average temperatures fluctuate between a high of 34.9°F (1.6°C) and a low of 22.8°F (-5.1°C).Humidity
In December, the average relative humidity in Sweet, Idaho, is 79%.Rainfall
In Sweet, in December, it is raining for 8.4 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 91.7 rainfall days, and 10.28" (261mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Sweet, Idaho. The month with the most snowfall is December, when snow falls for 7.5 days and typically aggregates up to 4.33" (110mm) of snow.Daylight
The month with the shortest days in Sweet is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 8:00 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 8:19 am and sunset at 5:17 pm MST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sweet, ID
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (34.9°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure in December
Sweet, ID
- Average pressure in December: 30.21"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in December
Sweet, ID
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).
Average humidity in December
Sweet, ID
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in December
Sweet, ID
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is March (1.54").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Sweet, ID
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in December
Sweet, ID
- Average snowfall in December: 4.33"
The month with the highest snowfall is December (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Sweet, ID
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sweet, ID
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Sweet, ID
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (15.3 days).
Average UV index in December
Sweet, ID
- 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
Sweet, ID
- Average cloud cover in December: 43
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in December
Sweet, ID
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
