December weather forecastColton, WA
December
Weather in December
The first month of the winter, December, is also a wintry month in Colton, Washington, with an average temperature ranging between min 24.8°F (-4°C) and max 36.5°F (2.5°C).Temperature
Colton's December weather, marked by an average high temperature of 36.5°F (2.5°C) and an average low temperature of 24.8°F (-4°C), is the coldest in the year.Humidity
The average relative humidity in December in Colton is 83%.Rainfall
In Colton, Washington, in December, during 11.7 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 116.2 rainfall days, and 8.23" (209mm) of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall in Colton. In Colton, during December, snow falls for 4.4 days and regularly aggregates up to 1.06" (27mm) of snow. In Colton, during the entire year, snow falls for 14.8 days and aggregates up to 4.29" (109mm) of snow.Daylight
December has the shortest days of the year in Colton, with an average of 8h and 36min of daylight.On the first day of December in Colton, sunrise is at 7:12 am and sunset at 4:02 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:11 pm PST.
Sunshine
In Colton, the average sunshine in December is 5.3h.UV index
The months with the lowest UV index in Colton are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Colton, WA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in December: 24.8°F
The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).
Average pressure in December
Colton, WA
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in December
Colton, WA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Colton, WA
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (38%).
Average rainfall in December
Colton, WA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is March (0.98").
The driest month (with the least rainfall) is August (0.24").
Average rainfall days in December
Colton, WA
- Average rainfall days in December: 11.7 days
The months with the highest number of rainy days are March and April (13.8 days).
The month with the least rainy days is August (4.5 days).
Average snowfall in December
Colton, WA
- Average snowfall in December: 1.06"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Colton, WA
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Colton, WA
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Colton, WA
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in December
Colton, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Colton, WA
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in December
Colton, 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 months with the lowest visibility are January, February and December (5mi).
