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
During January and December, Brewster experiences its coldest period, with an average high-temperature of 30.7°F (-0.7°C).Humidity
In December, the average relative humidity is 87%.Rainfall
December is the month with the most rainfall. Rain falls for 8.6 days and accumulates 1.34" (34mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. December is the month with the most snowfall in Brewster. Snow falls for 9.7 days and accumulates 4.72" (120mm) of snow.Daylight
The month with the shortest days in Brewster is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:29 am and sunset at 4:07 pm. On the last day of December, sunrise is at 7:49 am and sunset at 4:15 pm PST.
Sunshine
In December, the average sunshine is 4.6h.UV index
In Brewster, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What month is the coldest in Brewster?
How cold is December in Brewster?
What is the average humidity in December in Brewster?
What is the wettest month in Brewster?
How many days does it rain in December in Brewster?
When does it snow the most in Brewster?
How much does it snow in Brewster in December?
What is the month with the shortest days in Brewster?
How many hours of daylight does Brewster have in December?
What time are sunrise and sunset in December in Brewster?
How long on average sun shines in December in Brewster?
How high is the UV index in December in Brewster?
Average temperature in December
Brewster, WA
- Average high temperature in December: 30.7°F
The warmest months (with the highest average high temperature) are July and August (83.1°F).
The months with the lowest average high temperature are January and December (30.7°F).
- Average low temperature in December: 18.9°F
The month with the highest average low temperature is August (57°F).
The coldest month (with the lowest average low temperature) is December (18.9°F).
Average pressure in December
Brewster, WA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in December
Brewster, WA
- Average wind speed in December: 3.7mph
The windiest months (with the highest average wind speed) are April, June and July (5.3mph).
The calmest month (with the lowest average wind speed) is January (3.5mph).
Average humidity in December
Brewster, WA
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (40%).
Average rainfall in December
Brewster, WA
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is December (1.34").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in December
Brewster, WA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in December
Brewster, WA
- Average snowfall in December: 4.72"
The month with the highest snowfall is December (4.72").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Brewster, WA
- Average snowfall days in December: 9.7 days
The month with the highest number of snowfall days is December (9.7 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
Brewster, WA
- Average daylight in December: 8h and 2min
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 24min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Brewster, WA
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (13.7 days).
Average UV index in December
Brewster, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in December
Brewster, WA
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in December
Brewster, WA
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Brewster, Washington, USA
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