December weather forecastMarcus, WA
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Marcus, Washington, with an average temperature varying between 16.9°F (-8.4°C) and 28.9°F (-1.7°C).Temperature
December stands out as Marcus's coldest month, with an average high-temperature of 28.9°F (-1.7°C) and a low-temperature of 16.9°F (-8.4°C).Humidity
In Marcus, the average relative humidity in December is 91%.Rainfall
In Marcus, in December, during 11.7 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 156.3 rainfall days, and 16.18" (411mm) of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall. In Marcus, during December, snow falls for 13.7 days and regularly aggregates up to 6.5" (165mm) of snow. Throughout the year, in Marcus, there are 53.2 snowfall days, and 25.16" (639mm) of snow is accumulated.Daylight
December has the shortest days of the year in Marcus, with an average of 8h and 24min of daylight.On the first day of December, sunrise is at 7:24 am and sunset at 3:58 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:06 pm PST.
Sunshine
In December, the average sunshine is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 translates into these guidelines:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Marcus, WA
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in December: 16.9°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is February (16°F).
Average pressure in December
Marcus, WA
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in December
Marcus, WA
- Average wind speed in December: 3mph
The windiest month (with the highest average wind speed) is April (3.9mph).
The calmest months (with the lowest average wind speed) are January, February and December (3mph).
Average humidity in December
Marcus, WA
- Average humidity in December: 91%
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (50%).
Average rainfall in December
Marcus, WA
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in December
Marcus, WA
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in December
Marcus, WA
- Average snowfall in December: 6.5"
The month with the highest snowfall is January (6.61").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Marcus, WA
- Average snowfall days in December: 13.7 days
The month with the highest number of snowfall days is December (13.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Marcus, WA
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Marcus, WA
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is March (9 days).
Average UV index in December
Marcus, WA
- Average UV index in December: 1
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 1).
Average cloud cover in December
Marcus, WA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Marcus, WA
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
