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
In Plymouth, New Hampshire, the lowest temperatures are generally noted in January, averaging a high of 23.9°F (-4.5°C) and a low of 11.3°F (-11.5°C).Humidity
The months with the highest humidity in Plymouth are January and February, with an average relative humidity of 87%.Rainfall
January is the month with the least rainfall. Rain falls for 9.5 days and accumulates 0.79" (20mm) of precipitation.Snowfall
Months with snowfall in Plymouth are January through May, October through December. In Plymouth, in January, during 15.4 snowfall days, 3.86" (98mm) of snow is typically accumulated. Throughout the year, there are 77.2 snowfall days, and 22.52" (572mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 22min.On the first day of January, sunrise is at 7:20 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 4:55 pm EST.
Sunshine
The average sunshine in January is 4.2h.UV index
In Plymouth, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 2 in January leads to these recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Plymouth?
How cold is it in Plymouth in January?
What is the most humid month in Plymouth?
What is the average humidity in January in Plymouth?
What is the driest month in Plymouth?
How much does it rain in Plymouth in January?
How much does it snow in Plymouth in January?
How many hours of daylight does Plymouth have in January?
When is the sunrise / sunset in January in Plymouth?
How many hours of sunshine does Plymouth have in January?
How high is the UV index in January in Plymouth?
Average temperature in January
Plymouth, NH
- Average high temperature in January: 23.9°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in January: 11.3°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in January
Plymouth, 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 (29.91"Hg).
Average wind speed in January
Plymouth, NH
- Average wind speed in January: 6.8mph
The windiest months (with the highest average wind speed) are January, February and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in January
Plymouth, NH
- Average humidity in January: 87%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (76%).
Average rainfall in January
Plymouth, NH
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is October (1.5").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in January
Plymouth, NH
- Average rainfall days in January: 9.5 days
The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in January
Plymouth, NH
- Average snowfall in January: 3.86"
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
Plymouth, NH
- Average snowfall days in January: 15.4 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Plymouth, 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: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in January
Plymouth, NH
- Average sunshine days in January: 13.1 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in January
Plymouth, NH
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in January
Plymouth, NH
- Average cloud cover in January: 56
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in January
Plymouth, NH
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
Plymouth, New Hampshire, USA
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