Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the month when Grand Isle experiences its coldest temperatures, averaging a high of 18°F (-7.8°C) and a low of 2.8°F (-16.2°C).Humidity
In January, the average relative humidity is 93%.Rainfall
In Grand Isle, Maine, during January, the rain falls for 4.3 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 140.8 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 21.3 days and accumulates 14.92" (379mm) of snow.Daylight
In Grand Isle, the average length of the day in January is 8h and 59min.On the first day of the month, sunrise is at 7:19 am and sunset at 3:52 pm. On the last day of January, in Grand Isle, Maine, sunrise is at 6:59 am and sunset at 4:32 pm EST.
Sunshine
The average sunshine in January in Grand Isle is 2.5h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. 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 1 during January leads to these advisories:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the coldest time of year in Grand Isle?
How cold is it in Grand Isle in January?
What is the average humidity in January in Grand Isle?
How much does it rain in Grand Isle in January?
When does it snow the most in Grand Isle?
How much does it snow in Grand Isle in January?
What is the average length of the day in January in Grand Isle?
When is the sunrise / sunset in January in Grand Isle?
How long on average sun shines in January in Grand Isle?
What are the months with the lowest UV index in Grand Isle?
What is the UV index reading in January in Grand Isle?
Average temperature in January
Grand Isle, ME
- Average high temperature in January: 18°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in January: 2.8°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).
Average pressure in January
Grand Isle, ME
- Average pressure in January: 29.94"Hg
The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Grand Isle, ME
- Average wind speed in January: 8.2mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in January
Grand Isle, ME
- Average humidity in January: 93%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (76%).
Average rainfall in January
Grand Isle, ME
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in January
Grand Isle, ME
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is July (17.1 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in January
Grand Isle, ME
- Average snowfall in January: 14.92"
The month with the highest snowfall is January (14.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Grand Isle, ME
- Average snowfall days in January: 21.3 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grand Isle, ME
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January: 2h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in January
Grand Isle, ME
- Average sunshine days in January: 10.3 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).
Average UV index in January
Grand Isle, ME
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in January
Grand Isle, ME
- Average cloud cover in January: 74
The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in January
Grand Isle, ME
- Average visibility in January: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Grand Isle, Maine, USA
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