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 West Groton, January is the month with the lowest recorded average temperatures, measuring a high of 31.3°F (-0.4°C) and a low of 19.4°F (-7°C).Humidity
In January, the average relative humidity is 79%.Rainfall
In West Groton, in January, it is raining for 7.8 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 142.2 rainfall days, and 26.97" (685mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In West Groton, during January, snow falls for 8.1 days and regularly aggregates up to 4.25" (108mm) of snow. Throughout the year, there are 32.6 snowfall days, and 22.99" (584mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 29min.On the first day of January, sunrise is at 7:16 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:58 pm EST.
Sunshine
The average sunshine in January in West Groton is 5.1h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 2 in January transforms into the following instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What is the month with the lowest UV index?
How high is the UV index in January in West Groton?
Average temperature in January
West Groton, MA
- Average high temperature in January: 31.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in January: 19.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in January
West Groton, MA
- 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
West Groton, MA
- 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 (5.4mph).
Average humidity in January
West Groton, MA
- Average humidity in January: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).
Average rainfall in January
West Groton, MA
- Average rainfall in January: 2.13"
The wettest month (with the highest rainfall) is December (2.8").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in January
West Groton, MA
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in January
West Groton, MA
- Average snowfall in January: 4.25"
The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
West Groton, MA
- Average snowfall days in January: 8.1 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
West Groton, MA
- 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: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
West Groton, MA
- Average sunshine days in January: 17.9 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in January
West Groton, MA
- Average UV index in January: 2
The months with the highest UV index are June, 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
West Groton, MA
- 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 34).
Average visibility in January
West Groton, MA
- Average visibility in January: 5mi
The months with the highest visibility are April, October, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August and September (5mi).
West Groton, Massachusetts, USA
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