January weather forecastBrookline, MA
January
Weather in January
Brookline, Massachusetts greets the new year with cold, often snowy conditions. The stretch from December to January exhibits an increment in the average lowest temperature, transitioning to 22.5°F (-5.3°C) from a chilling 29.3°F (-1.5°C) in December. The potential for snowfall stays a constant, making a Winter Wonderland a relatively common sight, especially with visibility maintained consistently at 6 miles. Despite the shorter days of 9.5 daylight hours, the town manages to bask in 5.2 hours of sunshine. A robust winter jacket becomes a necessity during this month, given the biting cold and bouts of snowfall.Temperature
January, with its average high-temperature of 33.8°F (1°C) and an average low-temperature of 22.5°F (-5.3°C), holds the record as the coldest month.Humidity
The months with the highest humidity are January and February, with an average relative humidity of 77%.Rainfall
In Brookline, in January, during 4.3 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. In Brookline, Massachusetts, during the entire year, the rain falls for 81.8 days and collects up to 5.51" (140mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Brookline, in January, snow falls for 4.8 days, with typically accumulated 0.35" (9mm) of snow. In Brookline, during the entire year, snow falls for 16.8 days and aggregates up to 2.4" (61mm) of snow.Daylight
In Brookline, 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
In January, the average sunshine is 5.2h.UV index
January through March, November and 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 low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during January translates into the following guidance:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Brookline, MA
- Average high temperature in January: 33.8°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 (33.8°F).
- Average low temperature in January: 22.5°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in January
Brookline, MA
- Average pressure in January: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Brookline, MA
- Average wind speed in January: 9.5mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Brookline, MA
- Average humidity in January: 77%
The months with the highest relative humidity are January and February (77%).
The month with the lowest relative humidity is April (69%).
Average rainfall in January
Brookline, MA
- Average rainfall in January: 0.39"
The wettest month (with the highest rainfall) is November (0.63").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in January
Brookline, MA
- Average rainfall days in January: 4.3 days
The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in January
Brookline, MA
- Average snowfall in January: 0.35"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Brookline, MA
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Brookline, 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 6min).
- Average sunshine in January: 5h and 12min
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
Brookline, MA
- Average sunshine days in January: 23.5 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is June (17.4 days).
Average UV index in January
Brookline, 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
Brookline, 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 32).
Average visibility in January
Brookline, 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).
