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
Alton Bay's coldest temperatures are experienced in January, with average high temperatures of 26.1°F (-3.3°C) and lows of 12.9°F (-10.6°C).Humidity
January and February, with an average relative humidity of 86%, are the most humid months.Rainfall
In Alton Bay, in January, during 10 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Alton Bay, during the entire year, the rain falls for 152 days and collects up to 29.09" (739mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Alton Bay, during January, snow falls for 13.2 days and regularly aggregates up to 7.36" (187mm) of snow. Throughout the year, there are 58.3 snowfall days, and 38.98" (990mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 23min.On the first day of January, sunrise is at 7:17 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 4:54 pm EST.
Sunshine
The average sunshine in January is 4.9h.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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 in January translates into these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What are the most humid months?
What is the average humidity in January?
How many days does it rain in January in Alton Bay?
How much does it snow in January?
How many hours of daylight does Alton Bay have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Alton Bay, NH
- Average high temperature in January: 26.1°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in January: 12.9°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in January
Alton Bay, NH
- Average pressure in January: 30"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Alton Bay, NH
- Average wind speed in January: 7.1mph
The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in January
Alton Bay, NH
- Average humidity in January: 86%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Alton Bay, NH
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in January
Alton Bay, NH
- Average rainfall days in January: 10 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in January
Alton Bay, NH
- Average snowfall in January: 7.36"
The month with the highest snowfall is February (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Alton Bay, NH
- Average snowfall days in January: 13.2 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Alton Bay, NH
- Average daylight in January: 9h and 2min
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: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Alton Bay, NH
- Average sunshine days in January: 14.7 days
The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (11.4 days).
Average UV index in January
Alton Bay, NH
- 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, October, November and December (UV index 2).
Average cloud cover in January
Alton Bay, NH
- Average cloud cover in January: 48
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in January
Alton Bay, NH
- Average visibility in January: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
Alton Bay, New Hampshire, USA
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