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 Greenville, January is the coldest month, with temperatures averaging a high of 28.6°F (-1.9°C) and a low of 16°F (-8.9°C).Humidity
In January, the average relative humidity is 83%.Rainfall
In Greenville, during January, the rain falls for 4.9 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 113.8 rainfall days, and 12.44" (316mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Greenville, during January, snow falls for 9 days and regularly aggregates up to 3.15" (80mm) of snow. Throughout the year, there are 45.3 snowfall days, and 18.78" (477mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 28min.On the first day of the month, sunrise is at 7:17 am and sunset at 4:23 pm. On the last day of January, sunrise is at 7:02 am and sunset at 4:58 pm EST.
Sunshine
In Greenville, the average sunshine in January is 4.8h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In January, a regular UV index of 2 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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 it in January?
What is the average humidity in January in Greenville?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Greenville have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Greenville, NH
- Average high temperature in January: 28.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in January: 16°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 (16°F).
Average pressure in January
Greenville, 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
Greenville, NH
- Average wind speed in January: 8.4mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Greenville, NH
- Average humidity in January: 83%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Greenville, NH
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in January
Greenville, NH
- Average rainfall days in January: 4.9 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in January
Greenville, NH
- Average snowfall in January: 3.15"
The month with the highest snowfall is November (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Greenville, NH
- Average snowfall days in January: 9 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Greenville, NH
- Average daylight in January: 9h and 3min
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 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in January
Greenville, NH
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is June (14.3 days).
Average UV index in January
Greenville, NH
- Average UV index in January: 2
The month with the highest UV index is July (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
Greenville, NH
- Average cloud cover in January: 48
The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in January
Greenville, NH
- Average visibility in January: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Greenville, New Hampshire, USA
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