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, exhibiting average temperatures of 32.2°F (0.1°C) at the peak and 20.3°F (-6.5°C) at the base.Humidity
The average relative humidity in January is 78%.Rainfall
In January, the rain falls for 7.6 days. Throughout January, 2.17" (55mm) of precipitation is accumulated. Throughout the year, there are 144 rainfall days, and 26.97" (685mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Windham, in January, during 8.5 snowfall days, 3.46" (88mm) of snow is typically accumulated. Throughout the year, there are 31.9 snowfall days, and 20.94" (532mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 28min.On the first day of January, sunrise is at 7:15 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:56 pm EST.
Sunshine
The average sunshine in January in Windham is 5.1h.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 low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, a regular UV index of 2 translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Windham have in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index reading in January in Windham?
Average temperature in January
Windham, NH
- Average high temperature in January: 32.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in January: 20.3°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in January
Windham, 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 (29.92"Hg).
Average wind speed in January
Windham, NH
- Average wind speed in January: 9.2mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in January
Windham, NH
- Average humidity in January: 78%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in January
Windham, NH
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in January
Windham, NH
- Average rainfall days in January: 7.6 days
The month with the highest number of rainy days is May (15.9 days).
The months with the least rainy days are January and February (7.6 days).
Average snowfall in January
Windham, NH
- Average snowfall in January: 3.46"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Windham, NH
- Average snowfall days in January: 8.5 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Windham, NH
- Average daylight in January: 9h and 3min
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: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Windham, NH
- Average sunshine days in January: 17.6 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in January
Windham, NH
- Average UV index in January: 2
The months with the highest UV index are June, July and August (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
Windham, NH
- Average cloud cover in January: 44
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in January
Windham, NH
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Windham, New Hampshire, USA
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