December weather forecastWinthrop, ME
December
Weather in December
December, the first month of the winter in Winthrop, is also a wintry month, with an average temperature fluctuating between 22.1°F (-5.5°C) and 32.5°F (0.3°C).Temperature
Winthrop, Maine, in December undergoes a mild reduction in the average high-temperature, shifting from November's frosty 43.7°F (6.5°C) to an icy 32.5°F (0.3°C). An average nighttime temperature of 22.1°F (-5.5°C) is noted during the month of December.Humidity
In Winthrop, the average relative humidity in December is 80%.Rainfall
In Winthrop, during December, the rain falls for 10.4 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Winthrop, Maine, there are 142.3 rainfall days, and 27.52" (699mm) of precipitation is accumulated.Snowfall
Months with snowfall in Winthrop are January through May, October through December. In Winthrop, in December, during 9.1 snowfall days, 4.8" (122mm) of snow is typically accumulated. Throughout the year, in Winthrop, there are 50.3 snowfall days, and 29.69" (754mm) of snow is accumulated.Daylight
The month with the shortest days in Winthrop is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 4:02 pm. On the last day of December, in Winthrop, sunrise is at 7:15 am and sunset at 4:10 pm EST.
Sunshine
The average sunshine in December in Winthrop is 4.7h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Winthrop, ME
- Average high temperature in December: 32.5°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in December
Winthrop, ME
- Average pressure in December: 30.01"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Winthrop, ME
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Winthrop, ME
- Average humidity in December: 80%
The months with the highest relative humidity are January, February and March (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Winthrop, ME
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Winthrop, ME
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Winthrop, ME
- Average snowfall in December: 4.8"
The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Winthrop, ME
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Winthrop, ME
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Winthrop, ME
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in December
Winthrop, 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, October, November and December (UV index 2).
Average cloud cover in December
Winthrop, ME
- Average cloud cover in December: 50
The months with the most cloud cover are March and April (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in December
Winthrop, ME
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
