January weather forecastCharlton, MA
January
Weather in January
January, the same as December, in Charlton, Massachusetts, is another subzero cold winter month, with an average temperature fluctuating between 31.5°F (-0.3°C) and 19.6°F (-6.9°C).Temperature
Temperature readings reach their annual highs in January, averaging 31.5°F (-0.3°C) and a minimum average of 19.6°F (-6.9°C).Humidity
In January, the average relative humidity is 79%.Rainfall
In Charlton, during January, the rain falls for 7.8 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Charlton, during the entire year, the rain falls for 151.1 days and collects up to 31.26" (794mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Charlton. In Charlton, in January, during 8.8 snowfall days, 3.58" (91mm) of snow is typically accumulated. Throughout the year, there are 37.7 snowfall days, and 20.59" (523mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 31min.On the first day of January in Charlton, sunrise is at 7:16 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:00 pm EST.
Sunshine
The average sunshine in January in Charlton is 4.8h.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 low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Charlton, MA
- Average high temperature in January: 31.5°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in January: 19.6°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in January
Charlton, MA
- Average pressure in January: 30.02"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Charlton, MA
- Average wind speed in January: 9mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in January
Charlton, 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 (72%).
Average rainfall in January
Charlton, MA
- Average rainfall in January: 2.44"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in January
Charlton, MA
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are January and February (7.8 days).
Average snowfall in January
Charlton, MA
- Average snowfall in January: 3.58"
The months with the highest snowfall are February and March (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Charlton, MA
- Average snowfall days in January: 8.8 days
The month with the highest number of snowfall days is March (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Charlton, MA
- Average daylight in January: 9h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Charlton, MA
- Average sunshine days in January: 16.3 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in January
Charlton, MA
- Average UV index in January: 2
The months with the highest UV index are June and July (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
Charlton, MA
- Average cloud cover in January: 47
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in January
Charlton, MA
- Average visibility in January: 5mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).
