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
December is Stanley's coldest month, registering average high temperatures of 23.9°F (-4.5°C) and lows of 5.4°F (-14.8°C).Humidity
The average relative humidity in December is 88%.Rainfall
In Stanley, in December, during 4.4 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Stanley, during the entire year, the rain falls for 98.2 days and collects up to 19.25" (489mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. The month with the most snowfall is December, when snow falls for 20.4 days and typically aggregates up to 16.77" (426mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:55 am and sunset at 5:02 pm. On the last day of December, sunrise is at 8:15 am and sunset at 5:11 pm MST.
Sunshine
The months with the least sunshine are January and December, with an average of 4.4h of sunshine.UV index
In Stanley, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, the UV index of 2 transforms into the following advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is December?
What is the average humidity in December?
How much does it rain in Stanley in December?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Stanley have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine in Stanley?
How many hours of sunshine does Stanley have in December?
What is the UV index intensity in December?
Average temperature in December
Stanley, ID
- Average high temperature in December: 23.9°F
The warmest month (with the highest average high temperature) is July (72.7°F).
The month with the lowest average high temperature is December (23.9°F).
- Average low temperature in December: 5.4°F
The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is December (5.4°F).
Average pressure in December
Stanley, ID
- Average pressure in December: 30.23"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Stanley, ID
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is July (5.8mph).
The calmest months (with the lowest average wind speed) are January and October (4.8mph).
Average humidity in December
Stanley, ID
- Average humidity in December: 88%
The months with the highest relative humidity are February and March (91%).
The month with the lowest relative humidity is July (44%).
Average rainfall in December
Stanley, ID
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is March (2.17").
The driest months (with the least rainfall) are July and August (0.63").
Average rainfall days in December
Stanley, ID
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in December
Stanley, ID
- Average snowfall in December: 16.77"
The month with the highest snowfall is December (16.77").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Stanley, ID
- Average snowfall days in December: 20.4 days
The month with the highest number of snowfall days is March (21.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Stanley, ID
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in December
Stanley, ID
- Average sunshine days in December: 11.3 days
The month with the most sunshine days is July (20 days).
The month with the least sunshine days is April (8.1 days).
Average UV index in December
Stanley, ID
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March and November (UV index 1).
Average cloud cover in December
Stanley, ID
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in December
Stanley, ID
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (6mi).
The month with the lowest visibility is February (3mi).
Stanley, Idaho, USA
Weather forecast for your location
2. Allow the app to use your location