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
With average temperatures fluctuating between a high of 27.9°F (-2.3°C) and a low of 17.4°F (-8.1°C), January stands out as the coldest month.Humidity
January and February, with an average relative humidity of 88%, are the most humid months.Rainfall
In Boston, in January, during 7.2 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Boston, during the entire year, the rain falls for 151.9 days and collects up to 19.21" (488mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Boston, in January, snow falls for 16.7 days, with typically accumulated 3.62" (92mm) of snow. In Boston, during the entire year, snow falls for 71.6 days and aggregates up to 19.21" (488mm) of snow.Daylight
In January, the average length of the day is 9h and 29min.On the first day of the month, sunrise is at 7:44 am and sunset at 4:51 pm. On the last day of January, sunrise is at 7:30 am and sunset at 5:26 pm EST.
Sunshine
With an average of 2.3h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index in Boston are January, February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: During January, 1 as the daily maximum UV index converts into the following advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Boston?
How cold is January?
What are the most humid months?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
What is the average length of the day in January in Boston?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Boston have in January?
What are the months with the lowest UV index?
How high is the UV index in January in Boston?
Average temperature in January
Boston, NY
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in January: 17.4°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in January
Boston, NY
- Average pressure in January: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Boston, NY
- Average wind speed in January: 11.1mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in January
Boston, NY
- Average humidity in January: 88%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (79%).
Average rainfall in January
Boston, NY
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is September (1.22").
Average rainfall days in January
Boston, NY
- Average rainfall days in January: 7.2 days
The month with the highest number of rainy days is October (17.2 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in January
Boston, NY
- Average snowfall in January: 3.62"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Boston, NY
- Average snowfall days in January: 16.7 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Boston, NY
- 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: 2h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in January
Boston, NY
- Average sunshine days in January: 8.6 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (8.6 days).
Average UV index in January
Boston, NY
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in January
Boston, NY
- Average cloud cover in January: 78
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in January
Boston, NY
- Average visibility in January: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Boston, New York, USA
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