Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Deer Park's December weather, marked by an average high temperature of 31.3°F (-0.4°C) and an average low temperature of 20.3°F (-6.5°C), is the coldest in the year.Humidity
The average relative humidity in December in Deer Park is 89%.Rainfall
In December, the rain falls for 9.2 days. Throughout December, 2.28" (58mm) of precipitation is accumulated. Throughout the year, there are 124.9 rainfall days, and 17.44" (443mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Deer Park, in December, during 16.9 snowfall days, 10.47" (266mm) of snow is typically accumulated. In Deer Park, Washington, during the entire year, snow falls for 69.2 days and aggregates up to 42.99" (1092mm) of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year in Deer Park.On the first day of December, sunrise is at 7:19 am and sunset at 3:59 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:07 pm PST.
Sunshine
In December, the average sunshine is 3.5h.UV index
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 low health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What month is the coldest in Deer Park?
How cold is it in Deer Park in December?
What is the average humidity in December in Deer Park?
How many days does it rain in December in Deer Park?
How many days does it snow in December in Deer Park?
What is the month with the shortest days in Deer Park?
How many hours of daylight does Deer Park have in December?
When is the sunrise / sunset in December in Deer Park?
How many hours of sunshine does Deer Park have in December?
What is the month with the lowest UV index in Deer Park?
What is the UV index intensity in December in Deer Park?
Average temperature in December
Deer Park, WA
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is August (84°F).
The month with the lowest average high temperature is December (31.3°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in December
Deer Park, WA
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in December
Deer Park, WA
- Average wind speed in December: 4mph
The windiest month (with the highest average wind speed) is April (5.6mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in December
Deer Park, WA
- Average humidity in December: 89%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Deer Park, WA
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is January (2.4").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days in December
Deer Park, WA
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is March (16.2 days).
The month with the least rainy days is August (5.1 days).
Average snowfall in December
Deer Park, WA
- Average snowfall in December: 10.47"
The month with the highest snowfall is January (13.23").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Deer Park, WA
- Average snowfall days in December: 16.9 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Deer Park, WA
- Average daylight in December: 8h and 3min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 3min
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 24min).
Average sunshine days in December
Deer Park, WA
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is March (9.7 days).
Average UV index in December
Deer Park, 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 February, November and December (UV index 1).
Average cloud cover in December
Deer Park, WA
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in December
Deer Park, WA
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Deer Park, Washington, USA
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