December weather forecastFour Lakes, WA
December
Weather in December
The first month of the winter, December, is also an icy month in Four Lakes, Washington, with an average temperature fluctuating between 22.5°F (-5.3°C) and 32°F (0°C).Temperature
The month of December sees the lowest average temperatures, reaching 32°F (0°C) at the peak and 22.5°F (-5.3°C) at the low.Humidity
The average relative humidity in December is 87%.Rainfall
In Four Lakes, in December, during 5.2 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Four Lakes, during the entire year, the rain falls for 78.7 days and collects up to 7.72" (196mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Four Lakes, in December, during 9.8 snowfall days, 3.19" (81mm) of snow is typically accumulated. Throughout the year, there are 37.4 snowfall days, and 15.75" (400mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 7:18 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:09 pm PST.
Sunshine
December has the least sunshine of the year, with an average of 3.9h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Four Lakes, WA
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (32°F).
- Average low temperature in December: 22.5°F
The month with the highest average low temperature is August (59.7°F).
The coldest month (with the lowest average low temperature) is December (22.5°F).
Average pressure in December
Four Lakes, WA
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).
Average wind speed in December
Four Lakes, WA
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Four Lakes, WA
- Average humidity in December: 87%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (38%).
Average rainfall in December
Four Lakes, WA
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is May (1.06").
The driest months (with the least rainfall) are July and August (0.28").
Average rainfall days in December
Four Lakes, WA
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is April (9.6 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in December
Four Lakes, WA
- Average snowfall in December: 3.19"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Four Lakes, WA
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is December (9.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Four Lakes, WA
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in December
Four Lakes, WA
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is July (25.5 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in December
Four Lakes, WA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Four Lakes, WA
- Average cloud cover in December: 59
The months with the most cloud cover are January and December (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in December
Four Lakes, WA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
