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
In Sam, the month of December registers the lowest temperatures, averaging 23.9°F (-4.5°C) at the peak and 9.5°F (-12.5°C) at the lowest.Humidity
The average relative humidity in December is 90%.Rainfall
In Sam, in December, it is raining for 5.9 days, with typically 2.4" (61mm) of accumulated precipitation. In Sam, Idaho, during the entire year, the rain falls for 110.1 days and collects up to 23.35" (593mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Sam, in December, snow falls for 21.8 days, with typically accumulated 19.41" (493mm) of snow. Throughout the year, in Sam, there are 125.3 snowfall days, and 120.47" (3060mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:39 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:58 pm MST.
Sunshine
In Sam, the average sunshine in December is 4.2h.UV index
January through March and December, with an average maximum UV index of 1, are months with the lowest UV index in Sam. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 1 transforms into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Sam have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December in Sam?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Sam, ID
- Average high temperature in December: 23.9°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is December (23.9°F).
- Average low temperature in December: 9.5°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in December
Sam, ID
- Average pressure in December: 30.25"Hg
The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Sam, ID
- Average wind speed in December: 4.6mph
The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest months (with the lowest average wind speed) are January and December (4.6mph).
Average humidity in December
Sam, ID
- Average humidity in December: 90%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).
Average rainfall in December
Sam, ID
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.71").
Average rainfall days in December
Sam, ID
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Sam, ID
- Average snowfall in December: 19.41"
The month with the highest snowfall is January (24.06").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Sam, ID
- Average snowfall days in December: 21.8 days
The month with the highest number of snowfall days is December (21.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Sam, 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: 4h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Sam, ID
- Average sunshine days in December: 9 days
The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in December
Sam, ID
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover in December
Sam, ID
- Average cloud cover in December: 60
The month with the most cloud cover is February (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in December
Sam, ID
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).
Sam, Idaho, USA
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