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
Blackfoot reaches its lowest average temperatures in December, measuring 28.6°F (-1.9°C) at the peak and 16.7°F (-8.5°C) at the lowest.Humidity
The average relative humidity in December in Blackfoot, Idaho, is 85%.Rainfall
In Blackfoot, during December, the rain falls for 11.5 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 120.8 rainfall days, and 10.67" (271mm) of precipitation is accumulated.Snowfall
Months with snowfall in Blackfoot are January through May, September through December. In Blackfoot, during December, snow falls for 16.1 days and regularly aggregates up to 6.46" (164mm) of snow. Throughout the year, there are 69.9 snowfall days, and 29.37" (746mm) of snow is accumulated.Daylight
December has the shortest days of the year in Blackfoot, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:42 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:04 pm MST.
Sunshine
In Blackfoot, the average sunshine in December is 5.3h.UV index
December is the month with the lowest UV index in Blackfoot, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the coldest time of year in Blackfoot?
How cold is it in Blackfoot in December?
What is the average humidity in December in Blackfoot?
How much does it rain in Blackfoot in December?
How many days does it snow in December in Blackfoot?
What is the month with the shortest days in Blackfoot?
How many hours of daylight does Blackfoot have in December?
When are sunrise and sunset in December in Blackfoot?
How long on average sun shines in December in Blackfoot?
When is the lowest UV index in Blackfoot?
How high is the UV index in December in Blackfoot?
Average temperature in December
Blackfoot, ID
- Average high temperature in December: 28.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (28.6°F).
- Average low temperature in December: 16.7°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Blackfoot, ID
- Average pressure in December: 30.26"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Blackfoot, ID
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in December
Blackfoot, ID
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (34%).
Average rainfall in December
Blackfoot, ID
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is March (1.22").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in December
Blackfoot, ID
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is July (7.3 days).
Average snowfall in December
Blackfoot, ID
- Average snowfall in December: 6.46"
The month with the highest snowfall is January (7.83").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Blackfoot, ID
- Average snowfall days in December: 16.1 days
The month with the highest number of snowfall days is December (16.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Blackfoot, ID
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 2min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Blackfoot, ID
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is February (10.5 days).
Average UV index in December
Blackfoot, ID
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Blackfoot, ID
- Average cloud cover in December: 46
The months with the most cloud cover are January and February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in December
Blackfoot, ID
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Blackfoot, Idaho, USA
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