December weather forecastFernwood, ID
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Fernwood, Idaho, with an average temperature ranging between min 20.8°F (-6.2°C) and max 31.5°F (-0.3°C).Temperature
The coldest period tends to be December, when average temperatures fluctuate between a high of 31.5°F (-0.3°C) and a low of 20.8°F (-6.2°C).Humidity
The average relative humidity in December in Fernwood is 90%.Rainfall
In Fernwood, in December, during 8 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Fernwood, during the entire year, the rain falls for 118.6 days and collects up to 16.89" (429mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Fernwood, in December, snow falls for 14.5 days, with typically accumulated 9.37" (238mm) of snow. In Fernwood, during the entire year, snow falls for 60.4 days and aggregates up to 44.53" (1131mm) of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Fernwood, Idaho.On the first day of December in Fernwood, Idaho, sunrise is at 7:11 am and sunset at 3:57 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:06 pm PST.
Sunshine
The months with the least sunshine in Fernwood, Idaho, are January and December, with an average of 3.5h 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 estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 1 in December leads to these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fernwood, ID
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (31.5°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (20.8°F).
Average pressure in December
Fernwood, ID
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Fernwood, 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 August and September (3.9mph).
Average humidity in December
Fernwood, 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
Fernwood, ID
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is January (2.24").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Fernwood, ID
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is April (14.4 days).
The month with the least rainy days is July (5.4 days).
Average snowfall in December
Fernwood, ID
- Average snowfall in December: 9.37"
The month with the highest snowfall is January (11.73").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Fernwood, ID
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Fernwood, ID
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).
Average sunshine days in December
Fernwood, ID
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is February (10.1 days).
Average UV index in December
Fernwood, 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
Fernwood, 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 13).
Average visibility in December
Fernwood, ID
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January and February (3mi).





