January weather forecastBoothbay Harbor, ME
January
Weather in January
January, like December, is a freezing cold winter month in Boothbay Harbor, Maine, with an average temperature ranging between max 29.7°F (-1.3°C) and min 18°F (-7.8°C).Temperature
January, noted for its average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 18°F (-7.8°C), is considered the coldest month.Humidity
In Boothbay Harbor, the average relative humidity in January is 80%.Rainfall
In January, in Boothbay Harbor, the rain falls for 6.6 days. Throughout January, 2.44" (62mm) of precipitation is accumulated. In Boothbay Harbor, during the entire year, the rain falls for 142.1 days and collects up to 30.51" (775mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. The month with the most snowfall in Boothbay Harbor is January, when snow falls for 9.2 days and typically aggregates up to 5.28" (134mm) of snow.Ocean temperature
In January, the average ocean temperature is 41.4°F (5.2°C).Note: Taking a dip in 41.4°F (5.2°C) can be perilous. Submersion in temperatures under 50°F (10°C) triggers severe cold shock accompanied by hyperventilation.
Daylight
The average length of the day in January is 9h and 22min.On the first day of the month, sunrise is at 7:12 am and sunset at 4:11 pm. On the last day of January, sunrise is at 6:56 am and sunset at 4:47 pm EST.
Sunshine
In January, the average sunshine is 5h.UV index
The months with the lowest UV index in Boothbay Harbor 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 exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 2 during January leads to these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Boothbay Harbor, ME
- Average high temperature in January: 29.7°F
The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in January: 18°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in January
Boothbay Harbor, ME
- Average pressure in January: 29.97"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 January
Boothbay Harbor, ME
- Average wind speed in January: 10.6mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in January
Boothbay Harbor, ME
- Average humidity in January: 80%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall in January
Boothbay Harbor, ME
- Average rainfall in January: 2.44"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in January
Boothbay Harbor, ME
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in January
Boothbay Harbor, ME
- Average snowfall in January: 5.28"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Boothbay Harbor, ME
- Average snowfall days in January: 9.2 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Boothbay Harbor, ME
- Average sea temperature in January: 41.3°F
The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is March (37.9°F).
Average daylight in January /
Average sunshine in January
Boothbay Harbor, ME
- Average daylight in January: 9h and 24min
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 January: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in January
Boothbay Harbor, ME
- Average sunshine days in January: 16.7 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in January
Boothbay Harbor, ME
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Boothbay Harbor, ME
- Average cloud cover in January: 47
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Boothbay Harbor, ME
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





