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
Temperature readings reach their annual highs in January, averaging 27.7°F (-2.4°C) and a minimum average of 14.5°F (-9.7°C).Humidity
The average relative humidity in January is 84%.Rainfall
In January, the rain falls for 7.6 days. Throughout January, 2.2" (56mm) of precipitation is accumulated. In Hillsboro, during the entire year, the rain falls for 147.7 days and collects up to 30.91" (785mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 12.1 days. Throughout January, 7.95" (202mm) of snow is accumulated. Throughout the year, there are 54.9 snowfall days, and 37.2" (945mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 26min.On the first day of the month, sunrise is at 7:19 am and sunset at 4:22 pm. On the last day of January, sunrise is at 7:04 am and sunset at 4:57 pm EST.
Sunshine
In Hillsboro, the average sunshine in January is 4.6h.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 2 during January leads to these instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is January?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and 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
Hillsboro, NH
- Average high temperature in January: 27.7°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 (27.7°F).
- Average low temperature in January: 14.5°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in January
Hillsboro, NH
- Average pressure in January: 30.01"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Hillsboro, NH
- Average wind speed in January: 8mph
The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in January
Hillsboro, 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
Hillsboro, NH
- Average rainfall in January: 2.2"
The wettest month (with the highest rainfall) is October (3.46").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in January
Hillsboro, NH
- Average rainfall days in January: 7.6 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in January
Hillsboro, NH
- Average snowfall in January: 7.95"
The month with the highest snowfall is February (10.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Hillsboro, NH
- Average snowfall days in January: 12.1 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Hillsboro, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in January
Hillsboro, NH
- Average sunshine days in January: 15.8 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is March (12.1 days).
Average UV index in January
Hillsboro, NH
- Average UV index in January: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in January
Hillsboro, NH
- Average cloud cover in January: 50
The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in January
Hillsboro, NH
- Average visibility in January: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Hillsboro, New Hampshire, USA
Weather forecast for your location
2. Allow the app to use your location