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
During the coldest month, December, temperatures average a high of 25.7°F (-3.5°C) and a low of 12.6°F (-10.8°C).Humidity
January, February and December, with an average relative humidity of 93%, are the most humid months.Rainfall
The wettest months are January and December, with an average 1.34" (34mm) of rainfall.Snowfall
January through July, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 13.6 days and accumulates 9.8" (249mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:33 am and sunset at 4:10 pm. On the last day of December, sunrise is at 7:53 am and sunset at 4:18 pm PST.
Sunshine
In Stehekin, the average sunshine in December is 3.7h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. 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 are the coldest months?
How cold is it in December?
What is the most humid month?
What is the average humidity in December?
What is the wettest month?
How much does it rain in December?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Stehekin have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December in Stehekin?
Average temperature in December
Stehekin, WA
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is August (71.4°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in December: 12.6°F
The month with the highest average low temperature is August (46.4°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure in December
Stehekin, WA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.95"Hg).
Average wind speed in December
Stehekin, WA
- Average wind speed in December: 4.2mph
The windiest month (with the highest average wind speed) is June (5.2mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).
Average humidity in December
Stehekin, WA
- Average humidity in December: 93%
The months with the highest relative humidity are January, February and December (93%).
The months with the lowest relative humidity are July and August (60%).
Average rainfall in December
Stehekin, WA
- Average rainfall in December: 1.34"
The wettest months (with the highest rainfall) are January and December (1.34").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in December
Stehekin, WA
- Average rainfall days in December: 2.1 days
The month with the highest number of rainy days is June (10.4 days).
The month with the least rainy days is December (2.1 days).
Average snowfall in December
Stehekin, WA
- Average snowfall in December: 9.8"
The month with the highest snowfall is December (9.8").
The month with the least snowfall is August (0").
Average snowfall days in December
Stehekin, WA
- Average snowfall days in December: 13.6 days
The month with the highest number of snowfall days is March (13.7 days).
The month with the least snowfall days is August (0.2 days).
Average daylight in December /
Average sunshine in December
Stehekin, WA
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Stehekin, WA
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is August (22.9 days).
The months with the least sunshine days are April and May (15.4 days).
Average UV index in December
Stehekin, WA
- 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, November and December (UV index 1).
Average cloud cover in December
Stehekin, WA
- Average cloud cover in December: 64
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Stehekin, WA
- Average visibility in December: 3mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January and February (2mi).
Stehekin, Washington, USA
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