December weather forecastMedina, WA
December
Weather in December
The first month of the winter, December, is also a frosty month in Medina, Washington, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 42.8°F (6°C).Temperature
The coldest period tends to be December, when average temperatures fluctuate between a high of 42.8°F (6°C) and a low of 34.7°F (1.5°C).Humidity
The average relative humidity in December is 84%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.5 days and typically aggregates up to 2.01" (51mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Medina. In Medina, in December, snow falls for 1.1 days, with typically accumulated 0.31" (8mm) of snow. In Medina, during the entire year, snow falls for 7 days and aggregates up to 3.27" (83mm) of snow.Daylight
December has the shortest days of the year in Medina, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:37 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:57 am and sunset at 4:27 pm PST.
Sunshine
With an average of 4.2h of sunshine, December has the least sunshine of the year in Medina.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Medina, WA
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is August (53.4°F).
The coldest month (with the lowest average low temperature) is February (34.5°F).
Average pressure in December
Medina, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in December
Medina, WA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in December
Medina, WA
- Average humidity in December: 84%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (69%).
Average rainfall in December
Medina, WA
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is December (2.01").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Medina, WA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in December
Medina, WA
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Medina, WA
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (3 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
Medina, 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: 4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in December
Medina, WA
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is February (13.8 days).
Average UV index in December
Medina, 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
Medina, WA
- Average cloud cover in December: 56
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Medina, WA
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).





