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
During the coldest month, January, temperatures average a high of 22.5°F (-5.3°C) and a low of 9.7°F (-12.4°C).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 89%.Rainfall
In Thornton, in January, it is raining for 5.3 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Thornton, New Hampshire, there are 126 rainfall days, and 13.66" (347mm) of precipitation is accumulated.Snowfall
Months with snowfall in Thornton are January through May, October through December. In January, in Thornton, it is snowing for 17.9 days. Throughout January, 4.41" (112mm) of snow is accumulated. In Thornton, during the entire year, snow falls for 91.5 days and aggregates up to 21.85" (555mm) of snow.Daylight
The average length of the day in January in Thornton is 9h and 21min.On the first day of January in Thornton, sunrise is at 7:20 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 4:55 pm EST.
Sunshine
In January, the average sunshine in Thornton is 3.1h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Thornton. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the maximum UV index of 1 transforms into these recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. When the Sun is at its strongest around midday, find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Thornton?
How cold is January in Thornton?
What are the most humid months in Thornton?
What is the average humidity in January in Thornton?
How many days does it rain in January in Thornton?
How much does it snow in Thornton in January?
How many hours of daylight does Thornton have in January?
What time are sunrise and sunset in January in Thornton?
How long on average sun shines in January in Thornton?
What is the month with the lowest UV index in Thornton?
How high is the UV index in January in Thornton?
Average temperature in January
Thornton, NH
- Average high temperature in January: 22.5°F
The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in January: 9.7°F
The month with the highest average low temperature is July (54.3°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in January
Thornton, NH
- Average pressure in January: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Thornton, NH
- Average wind speed in January: 6.9mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in January
Thornton, NH
- Average humidity in January: 89%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (78%).
Average rainfall in January
Thornton, NH
- Average rainfall in January: 1.02"
The wettest month (with the highest rainfall) is April (1.5").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in January
Thornton, NH
- Average rainfall days in January: 5.3 days
The month with the highest number of rainy days is July (15.5 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall in January
Thornton, NH
- Average snowfall in January: 4.41"
The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Thornton, NH
- Average snowfall days in January: 17.9 days
The month with the highest number of snowfall days is February (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Thornton, NH
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 3h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in January
Thornton, NH
- Average sunshine days in January: 13.7 days
The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in January
Thornton, NH
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in January
Thornton, NH
- Average cloud cover in January: 70
The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 44).
Average visibility in January
Thornton, NH
- Average visibility in January: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Thornton, New Hampshire, USA
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