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 coldest month, with an average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 14.5°F (-9.7°C).Humidity
In January, the average relative humidity is 84%.Rainfall
The months with the least rainfall are January and March Rain falls for 4.5 days and accumulates 1.06" (27mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In Alstead, New Hampshire, in January, during 7.5 snowfall days, 3.98" (101mm) of snow is typically accumulated. In Alstead, during the entire year, snow falls for 31 days and aggregates up to 16.22" (412mm) of snow.Daylight
The average length of the day in January is 9h and 26min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:24 pm. On the last day of January, in Alstead, sunrise is at 7:05 am and sunset at 4:59 pm EST.
Sunshine
In Alstead, the average sunshine in January is 4.8h.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 unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 during January translates into the following guidance:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What is the average humidity in January?
What is the driest month in Alstead?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Alstead have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Alstead, NH
- Average high temperature in January: 27.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in January: 14.5°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 (14.5°F).
Average pressure in January
Alstead, NH
- Average pressure in January: 30.02"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Alstead, NH
- Average wind speed in January: 7.6mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Alstead, NH
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in January
Alstead, NH
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is October (1.77").
The driest months (with the least rainfall) are January and March (1.06").
Average rainfall days in January
Alstead, NH
- Average rainfall days in January: 4.5 days
The month with the highest number of rainy days is July (12.1 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in January
Alstead, NH
- Average snowfall in January: 3.98"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Alstead, NH
- Average snowfall days in January: 7.5 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Alstead, NH
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in January
Alstead, NH
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are April and June (16 days).
Average UV index in January
Alstead, NH
- Average UV index in January: 2
The months with the highest UV index are May, 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
Alstead, NH
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Alstead, NH
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Alstead, New Hampshire, USA
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