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 stands out as Yacolt's coldest month, with temperatures ranging between an average high of 42.6°F (5.9°C) and a low of 32.7°F (0.4°C).Humidity
In Yacolt, the average relative humidity in December is 85%.Rainfall
In Yacolt, in December, during 19 rainfall days, 5.94" (151mm) of precipitation is typically accumulated. In Yacolt, during the entire year, the rain falls for 177.9 days and collects up to 40.67" (1033mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Yacolt. In Yacolt, during December, snow falls for 1.5 days and regularly aggregates up to 0.63" (16mm) of snow. In Yacolt, during the entire year, snow falls for 9.8 days and aggregates up to 7.4" (188mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:50 am and sunset at 4:35 pm PST.
Sunshine
The average sunshine in December in Yacolt is 3.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Yacolt. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Yacolt?
How cold is it in Yacolt in December?
What is the average humidity in December in Yacolt?
How much does it rain in Yacolt in December?
How many days does it snow in December in Yacolt?
What is the month with the shortest days in Yacolt?
How many hours of daylight does Yacolt have in December?
What time are sunrise and sunset in December in Yacolt?
How long on average sun shines in December in Yacolt?
What are the months with the lowest UV index in Yacolt?
How high is the UV index in December in Yacolt?
Average temperature in December
Yacolt, WA
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (42.6°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is August (52°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in December
Yacolt, WA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Yacolt, WA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is January (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Yacolt, WA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Yacolt, WA
- Average rainfall in December: 5.94"
The wettest month (with the highest rainfall) is January (6.06").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in December
Yacolt, WA
- Average rainfall days in December: 19 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in December
Yacolt, WA
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Yacolt, WA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Yacolt, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).
Average sunshine days in December
Yacolt, WA
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in December
Yacolt, 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, November and December (UV index 2).
Average cloud cover in December
Yacolt, WA
- Average cloud cover in December: 59
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Yacolt, WA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Yacolt, Washington, USA
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