December weather forecastWarrendale, OR
December
Weather in December
The first month of the winter, December, is also a wintry month in Warrendale, Oregon, with an average temperature ranging between max 37.9°F (3.3°C) and min 28.2°F (-2.1°C).Temperature
Warrendale records the coldest temperatures in December, averaging a high of 37.9°F (3.3°C) and a low of 28.2°F (-2.1°C).Humidity
In December, the average relative humidity is 87%.Rainfall
In Warrendale, during December, the rain falls for 18.5 days and regularly aggregates up to 4.96" (126mm) of precipitation. Throughout the year, there are 158.4 rainfall days, and 30.31" (770mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Warrendale, in December, during 2.5 snowfall days, 1.73" (44mm) of snow is typically accumulated. In Warrendale, during the entire year, snow falls for 11.5 days and aggregates up to 10" (254mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:28 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:34 pm PST.
Sunshine
The average sunshine in December is 3.3h.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Warrendale, OR
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (37.9°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (28.2°F).
Average pressure in December
Warrendale, OR
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in December
Warrendale, OR
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is January (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Warrendale, OR
- Average humidity in December: 87%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are July and August (67%).
Average rainfall in December
Warrendale, OR
- Average rainfall in December: 4.96"
The wettest month (with the highest rainfall) is January (5.35").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in December
Warrendale, OR
- Average rainfall days in December: 18.5 days
The month with the highest number of rainy days is March (18.9 days).
The month with the least rainy days is July (4.4 days).
Average snowfall in December
Warrendale, OR
- Average snowfall in December: 1.73"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Warrendale, OR
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (3.8 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
Warrendale, OR
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in December
Warrendale, OR
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is February (9.4 days).
Average UV index in December
Warrendale, OR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Warrendale, OR
- Average cloud cover in December: 66
The month with the most cloud cover is February (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in December
Warrendale, OR
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
