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
Rollinsford's coldest weather arrives in January, when temperatures average a high of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 82%.Rainfall
In Rollinsford, in January, during 7.6 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Rollinsford, during the entire year, the rain falls for 143.1 days and collects up to 29.06" (738mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Rollinsford, in January, snow falls for 10.4 days, with typically accumulated 6.26" (159mm) of snow. Throughout the year, there are 40 snowfall days, and 27.8" (706mm) of snow is accumulated.Daylight
In Rollinsford, the average length of the day in January is 9h and 25min.On the first day of the month, sunrise is at 7:15 am and sunset at 4:18 pm. On the last day of January, sunrise is at 7:00 am and sunset at 4:53 pm EST.
Sunshine
In Rollinsford, the average sunshine in January is 5h.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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In January, a daily UV index of 2 turns into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from 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 in Rollinsford?
What is the most humid month in Rollinsford?
What is the average humidity in January?
How many days does it rain in January in Rollinsford?
How many days does it snow in January?
How many hours of daylight does Rollinsford have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Rollinsford have in January?
What is the month with the lowest UV index in Rollinsford?
How high is the UV index in January?
Average temperature in January
Rollinsford, NH
- Average high temperature in January: 29.7°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 (29.7°F).
- Average low temperature in January: 17.4°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in January
Rollinsford, NH
- Average pressure in January: 29.99"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
Rollinsford, NH
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in January
Rollinsford, NH
- Average humidity in January: 82%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Rollinsford, NH
- Average rainfall in January: 2.28"
The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in January
Rollinsford, NH
- Average rainfall days in January: 7.6 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in January
Rollinsford, NH
- Average snowfall in January: 6.26"
The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rollinsford, NH
- Average snowfall days in January: 10.4 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rollinsford, 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 0min).
- Average sunshine in January: 5h and 0min
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 42min).
Average sunshine days in January
Rollinsford, NH
- Average sunshine days in January: 16.3 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).
Average UV index in January
Rollinsford, 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, November and December (UV index 2).
Average cloud cover in January
Rollinsford, NH
- Average cloud cover in January: 45
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Rollinsford, NH
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Rollinsford, New Hampshire, USA
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