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
With its high average temperature of 27.9°F (-2.3°C) and a low of 14.7°F (-9.6°C), December is regarded as the coldest month.Humidity
In Twisp, the average relative humidity in December is 90%.Rainfall
The month with the most rainfall is December, when the rain falls for 10.2 days and typically aggregates up to 2.52" (64mm) of precipitation.Snowfall
January through April, September through December are months with snowfall in Twisp. December is the month with the most snowfall. Snow falls for 15.5 days and accumulates 12.28" (312mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:08 pm. On the last day of December, in Twisp, sunrise is at 7:51 am and sunset at 4:16 pm PST.
Sunshine
In Twisp, the average sunshine in December is 4.5h.UV index
The average daily maximum UV index in December in Twisp is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 2 in December transforms into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What month is the coldest in Twisp?
How cold is December in Twisp?
What is the average humidity in December in Twisp?
What is the wettest month in Twisp?
How much does it rain in Twisp in December?
What is the snowiest month in Twisp?
How many days does it snow in December in Twisp?
What is the month with the shortest days in Twisp?
What is the average length of the day in December in Twisp?
When are sunrise and sunset in December in Twisp?
How many hours of sunshine does Twisp have in December?
How high is the UV index in December in Twisp?
Average temperature in December
Twisp, WA
- Average high temperature in December: 27.9°F
The warmest month (with the highest average high temperature) is August (76.8°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in December: 14.7°F
The month with the highest average low temperature is August (48.9°F).
The coldest month (with the lowest average low temperature) is December (14.7°F).
Average pressure in December
Twisp, WA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in December
Twisp, WA
- Average wind speed in December: 3.5mph
The windiest month (with the highest average wind speed) is July (5.1mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).
Average humidity in December
Twisp, WA
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in December
Twisp, WA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is December (2.52").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Twisp, WA
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (5.7 days).
Average snowfall in December
Twisp, WA
- Average snowfall in December: 12.28"
The month with the highest snowfall is December (12.28").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Twisp, WA
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is December (15.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Twisp, 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: 4h and 3min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Twisp, WA
- Average sunshine days in December: 12.1 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is March (8.9 days).
Average UV index in December
Twisp, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in December
Twisp, WA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Twisp, WA
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Twisp, Washington, USA
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