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
Sandown's January weather reaches an average high of 31.3°F (-0.4°C) and an average low of 18.9°F (-7.3°C), making it the coldest month.Humidity
The average relative humidity in January in Sandown is 80%.Rainfall
In Sandown, in January, during 6.4 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 137.4 rainfall days, and 28.15" (715mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Sandown. In Sandown, in January, snow falls for 9.3 days, with typically accumulated 5.28" (134mm) of snow. Throughout the year, there are 37 snowfall days, and 24.88" (632mm) of snow is accumulated.Daylight
The average length of the day in January in Sandown, New Hampshire, is 9h and 27min.On the first day of the month, sunrise is at 7:15 am and sunset at 4:20 pm. On the last day of January, in Sandown, sunrise is at 7:00 am and sunset at 4:55 pm EST.
Sunshine
In Sandown, New Hampshire, the average sunshine in January is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sandown, New Hampshire. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Sandown?
How cold is January in Sandown?
What is the average humidity in January in Sandown?
How much does it rain in Sandown in January?
How many days does it snow in January in Sandown?
What is the average length of the day in January in Sandown?
What time are sunrise and sunset in January in Sandown?
How long on average sun shines in January in Sandown?
When is the lowest UV index in Sandown?
What is the UV index reading in January in Sandown?
Average temperature in January
Sandown, NH
- Average high temperature in January: 31.3°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in January: 18.9°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in January
Sandown, 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
Sandown, NH
- Average wind speed in January: 9.4mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in January
Sandown, NH
- Average humidity in January: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Sandown, NH
- Average rainfall in January: 2.24"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in January
Sandown, NH
- Average rainfall days in January: 6.4 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in January
Sandown, NH
- Average snowfall in January: 5.28"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Sandown, NH
- Average snowfall days in January: 9.3 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sandown, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Sandown, NH
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is April (13.6 days).
Average UV index in January
Sandown, 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
Sandown, NH
- Average cloud cover in January: 46
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Sandown, NH
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, October, November and December (6mi).
The months with the lowest visibility are February, May, July, August and September (5mi).
Sandown, New Hampshire, USA
Weather forecast for your location
2. Allow the app to use your location