December weather forecastPhillips, WA
December
Weather in December
The first month of the winter, December, is also an icy month in Phillips, Washington, with an average temperature varying between 42.3°F (5.7°C) and 32.4°F (0.2°C).Temperature
The coldest period is December, when temperatures fluctuate between an average high of 42.3°F (5.7°C) and a low of 32.4°F (0.2°C).Humidity
January, February, November and December, with an average relative humidity of 88%, are the most humid months.Rainfall
In Phillips, Washington, in December, it is raining for 18.3 days, with typically 3.11" (79mm) of accumulated precipitation. In Phillips, during the entire year, the rain falls for 170.1 days and collects up to 22.56" (573mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Phillips, in December, snow falls for 1.5 days, with typically accumulated 0.39" (10mm) of snow. In Phillips, during the entire year, snow falls for 10 days and aggregates up to 5.31" (135mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of December in Phillips, sunrise is at 7:35 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 4:33 pm PST.
Sunshine
January, February and December, with an average of 3.7h of sunshine, are months with the least 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 low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. 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
Phillips, WA
- Average high temperature in December: 42.3°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 (42.3°F).
- Average low temperature in December: 32.4°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (32.4°F).
Average pressure in December
Phillips, WA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in December
Phillips, WA
- Average wind speed in December: 4.6mph
The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in December
Phillips, WA
- Average humidity in December: 88%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Phillips, WA
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is January (3.54").
The driest months (with the least rainfall) are July and August (0.39").
Average rainfall days in December
Phillips, WA
- Average rainfall days in December: 18.3 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (6.1 days).
Average snowfall in December
Phillips, WA
- Average snowfall in December: 0.39"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Phillips, WA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.4 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
Phillips, 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: 3h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 42min).
Average sunshine days in December
Phillips, WA
- Average sunshine days in December: 10.2 days
The month with the most sunshine days is August (22.1 days).
The month with the least sunshine days is February (9 days).
Average UV index in December
Phillips, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Phillips, WA
- Average cloud cover in December: 63
The months with the most cloud cover are February and March (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Phillips, WA
- Average visibility in December: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
