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 Chestnut Hill, January is the month with the lowest recorded average temperatures, measuring a high of 33.6°F (0.9°C) and a low of 21.7°F (-5.7°C).Humidity
The average relative humidity in January is 77%.Rainfall
In Chestnut Hill, during January, the rain falls for 5.7 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, in Chestnut Hill, Massachusetts, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In Chestnut Hill, during January, snow falls for 4.9 days and regularly aggregates up to 0.39" (10mm) of snow. In Chestnut Hill, Massachusetts, during the entire year, snow falls for 18.8 days and aggregates up to 3.15" (80mm) of snow.Daylight
The average length of the day in January is 9h and 30min.On the first day of January, sunrise is at 7:13 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:56 pm EST.
Sunshine
The average sunshine in January is 5.2h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 during January translates into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What time of the year is the coldest in Chestnut Hill?
How cold is January in Chestnut Hill?
What is the average humidity in January in Chestnut Hill?
How many days does it rain in January in Chestnut Hill?
How much does it snow in Chestnut Hill in January?
How many hours of daylight does Chestnut Hill have in January?
What time are sunrise and sunset in January in Chestnut Hill?
How many hours of sunshine does Chestnut Hill have in January?
What is the month with the lowest UV index in Chestnut Hill?
What is the UV index intensity in January in Chestnut Hill?
Average temperature in January
Chestnut Hill, MA
- Average high temperature in January: 33.6°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in January: 21.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in January
Chestnut Hill, 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
Chestnut Hill, MA
- Average wind speed in January: 9.1mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in January
Chestnut Hill, MA
- Average humidity in January: 77%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in January
Chestnut Hill, MA
- Average rainfall in January: 0.43"
The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in January
Chestnut Hill, MA
- Average rainfall days in January: 5.7 days
The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in January
Chestnut Hill, MA
- Average snowfall in January: 0.39"
The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Chestnut Hill, MA
- Average snowfall days in January: 4.9 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Chestnut Hill, MA
- Average daylight in January: 9h and 3min
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 6min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Chestnut Hill, MA
- Average sunshine days in January: 22.5 days
The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).
Average UV index in January
Chestnut Hill, 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
Chestnut Hill, MA
- Average cloud cover in January: 44
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Chestnut Hill, MA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Chestnut Hill, Massachusetts, USA
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