January weather forecast
Deer Isle, ME

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Weather in January

January is the start of the year and brings in cooler temperatures to Deer Isle, Maine. Weather patterns show a decrease in temperatures compared to December, with a low drop in average temperatures reaching lows of 21°F (-6.1°C). Days are shorter, typical of winter months. Severe weather conditions can be expected during this time, making it crucial to be prepared for winter storms. The city becomes a winter wonderland, attracting winter sports enthusiasts.

Temperature

In Deer Isle, January is the coldest month, with temperatures averaging a high of 31.5°F (-0.3°C) and a low of 21°F (-6.1°C).

Humidity

In Deer Isle, the average relative humidity in January is 79%.

Rainfall

In January, the rain falls for 5.8 days. Throughout January, 1.54" (39mm) of precipitation is accumulated. In Deer Isle, during the entire year, the rain falls for 115.5 days and collects up to 17.95" (456mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Deer Isle, during January, snow falls for 7.7 days and regularly aggregates up to 1.89" (48mm) of snow. In Deer Isle, during the entire year, snow falls for 29.2 days and aggregates up to 9.65" (245mm) of snow.

Ocean temperature

In Deer Isle, the average seawater temperature in January is 41.7°F (5.4°C).
Note: Diving into 41.7°F (5.4°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.

Daylight

In January, the average length of the day is 9h and 19min.
On the first day of January, sunrise is at 7:10 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:42 pm EST.

Sunshine

The average sunshine in January is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: In January, the UV index of 2 transforms into the following advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Stay sun-safe with clothing that is both closely woven and worn loosely. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What month is the coldest?

January, with its high-temperature average of 31.5°F (-0.3°C) and a low-temperature average of 21°F (-6.1°C), is the coldest month.

How cold is January?

The average high-temperature and low-temperature during January are 31.5°F (-0.3°C) and 21°F (-6.1°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 79%.

How much does it rain in January?

In January, the rain falls for 5.8 days. Throughout January, 1.54" (39mm) of precipitation is accumulated.

How much does it snow in January?

In Deer Isle, during January, snow falls for 7.7 days and regularly aggregates up to 1.89" (48mm) of snow.

How cold is the water in January?

In January, the average ocean temperature in Deer Isle, Maine, is 41.7°F (5.4°C). Swimming in 41.7°F (5.4°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in January?

The average day length in January is 9h and 19min.

What time are sunrise and sunset in January in Deer Isle?

On the first day of January, sunrise is at 7:10 am and sunset at 4:06 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 4:42 pm EST.

How long on average sun shines in January?

In Deer Isle, the average sunshine duration in January is 4.8h.

What are the months with the lowest UV index?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in January?

The average daily maximum UV index in January in Deer Isle is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Deer Isle, ME

Average temperature in January - Deer Isle, ME
  • Average high temperature in January: 31.5°F

The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in January: 21°F

The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average pressure in January
Deer Isle, ME

Average pressure in January - Deer Isle, ME
  • Average pressure in January: 29.96"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Deer Isle, ME

Average wind speed in January - Deer Isle, ME
  • Average wind speed in January: 14.4mph

The windiest month (with the highest average wind speed) is January (14.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in January
Deer Isle, ME

Average humidity in January - Deer Isle, ME
  • Average humidity in January: 79%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (76%).

Average rainfall in January
Deer Isle, ME

Average rainfall in January - Deer Isle, ME
  • Average rainfall in January: 1.54"

The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is September (0.91").

Average rainfall days in January
Deer Isle, ME

Average rainfall days in January - Deer Isle, ME
  • Average rainfall days in January: 5.8 days

The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (5.3 days).

Average snowfall in January
Deer Isle, ME

Average snowfall in January - Deer Isle, ME
  • Average snowfall in January: 1.89"

The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Deer Isle, ME

Average snowfall days in January - Deer Isle, ME
  • Average snowfall days in January: 7.7 days

The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average sea temperature in January
Deer Isle, ME

Average sea temperature in January - Deer Isle, ME
  • Average sea temperature in January: 41.8°F

The best month for swimming (with the highest average sea temperature) is August (58.6°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).

Average daylight in January /
Average sunshine in January
Deer Isle, ME

Average daylight in January / Average sunshine in January - Deer Isle, ME
  • Average daylight in January: 9h and 2min

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 January: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).

Average sunshine days in January
Deer Isle, ME

Average sunshine days in January - Deer Isle, ME
  • Average sunshine days in January: 17.9 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is July (15.4 days).

Average UV index in January
Deer Isle, ME

Average UV index in January - Deer Isle, ME
  • Average UV index in January: 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 January
Deer Isle, ME

Average cloud cover in January - Deer Isle, ME
  • Average cloud cover in January: 49

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 31).

Average visibility in January
Deer Isle, ME

Average visibility in January - Deer Isle, ME
  • Average visibility in January: 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).

Deer Isle, Maine, USA

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