December weather forecastSmelterville, ID
December
Weather in December
December, the first month of the winter in Smelterville, is also a subzero cold month, with an average temperature varying between 30.4°F (-0.9°C) and 19.8°F (-6.8°C).Temperature
December is the month when Smelterville sees the lowest average temperatures, with a high of 30.4°F (-0.9°C) and a low of 19.8°F (-6.8°C).Humidity
The average relative humidity in December in Smelterville is 90%.Rainfall
In Smelterville, Idaho, in December, it is raining for 8 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, in Smelterville, there are 140.1 rainfall days, and 22.2" (564mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Smelterville, in December, snow falls for 13.5 days, with typically accumulated 9.65" (245mm) of snow. In Smelterville, during the entire year, snow falls for 57.8 days and aggregates up to 45.31" (1151mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 3:55 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:03 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 3.6h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Smelterville, ID
- Average high temperature in December: 30.4°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in December: 19.8°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (19.8°F).
Average pressure in December
Smelterville, ID
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
Smelterville, ID
- Average wind speed in December: 4mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are September and December (4mph).
Average humidity in December
Smelterville, ID
- Average humidity in December: 90%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Smelterville, ID
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is January (2.8").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in December
Smelterville, ID
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in December
Smelterville, ID
- Average snowfall in December: 9.65"
The month with the highest snowfall is January (12.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Smelterville, ID
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Smelterville, ID
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 36min).
Average sunshine days in December
Smelterville, ID
- Average sunshine days in December: 13.4 days
The month with the most sunshine days is July (22.9 days).
The month with the least sunshine days is March (8.7 days).
Average UV index in December
Smelterville, ID
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Smelterville, ID
- Average cloud cover in December: 64
The months with the most cloud cover are January, February and December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Smelterville, ID
- Average visibility in December: 3mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
