December weather forecastMedical Lake, WA
December
Weather in December
December, the first month of the winter in Medical Lake, is also an icy month, with temperature in the range of an average high of 32°F (0°C) and an average low of 22.5°F (-5.3°C).Temperature
Temperature records mark December as the coldest month, with highs averaging 32°F (0°C) and lows at 22.5°F (-5.3°C).Humidity
In December, the average relative humidity in Medical Lake is 87%.Rainfall
In Medical Lake, Washington, during December, the rain falls for 5.2 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Medical Lake, Washington, during the entire year, the rain falls for 78.7 days and collects up to 7.72" (196mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In December, in Medical Lake, it is snowing for 9.8 days. Throughout December, 3.19" (81mm) of snow is accumulated. Throughout the year, there are 37.4 snowfall days, and 15.75" (400mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of December in Medical Lake, 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
The month with the least sunshine is December, with an average of 3.9h of sunshine.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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
Medical Lake, 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).
