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
The shift from November to December in Westbrook involves a decrease in the average high-temperature, from a frosty 45.7°F (7.6°C) to a cold 36.3°F (2.4°C). During the month of December, Westbrook's nighttime temperature lowers to an average of 27°F (-2.8°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In Westbrook, in December, during 6.8 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Westbrook, during the entire year, the rain falls for 116.5 days and collects up to 17.13" (435mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 5.6 days. Throughout December, 2.8" (71mm) of snow is accumulated. Throughout the year, there are 30.1 snowfall days, and 12.24" (311mm) of snow is accumulated.Daylight
The month with the shortest days in Westbrook is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 6:55 am and sunset at 4:05 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:14 pm EST.
Sunshine
With an average of 4.8h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index in Westbrook are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Westbrook in December?
What is the average humidity in December in Westbrook?
How many days does it rain in December in Westbrook?
How many days does it snow in December in Westbrook?
What is the month with the shortest days in Westbrook?
What is the average length of the day in December in Westbrook?
What time are sunrise and sunset in December in Westbrook?
What is the month with the least sunshine in Westbrook?
How many hours of sunshine does Westbrook have in December?
What are the months with the lowest UV index in Westbrook?
What is the UV index reading in December in Westbrook?
Average temperature in December
Westbrook, ME
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Westbrook, ME
- Average pressure in December: 30.02"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Westbrook, ME
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in December
Westbrook, ME
- Average humidity in December: 78%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Westbrook, ME
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is October (1.97").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in December
Westbrook, ME
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is January (5 days).
Average snowfall in December
Westbrook, ME
- Average snowfall in December: 2.8"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Westbrook, ME
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Westbrook, ME
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Westbrook, ME
- Average sunshine days in December: 19 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is July (15.3 days).
Average UV index in December
Westbrook, ME
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Westbrook, ME
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Westbrook, ME
- 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).
Westbrook, Maine, USA
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