December weather forecastAdams, OR
December
Weather in December
December, the first month of the winter in Adams, is also a wintry month, with an average temperature ranging between max 37.9°F (3.3°C) and min 27.3°F (-2.6°C).Temperature
Adams notes the coldest temperatures in December, with a high average of 37.9°F (3.3°C) and a low of 27.3°F (-2.6°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In December, the rain falls for 13.5 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 132.7 rainfall days, and 12.91" (328mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, September, November and December. In Adams, in December, snow falls for 5.5 days, with typically accumulated 2.05" (52mm) of snow. Throughout the year, there are 17.5 snowfall days, and 9.41" (239mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:15 am and sunset at 4:11 pm. On the last day of December, sunrise is at 7:35 am and sunset at 4:20 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.4h of sunshine.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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Enhance your sun protection with tightly woven, yet airy clothing. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Adams, OR
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is August (61.7°F).
The coldest month (with the lowest average low temperature) is December (27.3°F).
Average pressure in December
Adams, OR
- Average pressure in December: 30.17"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
Adams, OR
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in December
Adams, OR
- Average humidity in December: 78%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall in December
Adams, OR
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is March (1.65").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in December
Adams, OR
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (3.6 days).
Average snowfall in December
Adams, OR
- Average snowfall in December: 2.05"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August and October (0").
Average snowfall days in December
Adams, OR
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is December (5.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Adams, OR
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 24min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in December
Adams, OR
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is March (11.7 days).
Average UV index in December
Adams, OR
- 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
Adams, OR
- Average cloud cover in December: 43
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in December
Adams, OR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
