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
January, with an average high of 44.2°F (6.8°C) and a low of 30.6°F (-0.8°C), signifies the coldest month of the year.Humidity
In January, the average relative humidity is 76%.Rainfall
In Boston, during January, the rain falls for 7.7 days and regularly aggregates up to 0.87" (22mm) of precipitation. In Boston, during the entire year, the rain falls for 118.2 days and collects up to 10.83" (275mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. The months with the most snowfall in Boston are January, February and December, with an average 0.2" (5mm) of accumulated snow.Daylight
In Boston, the average length of the day in January is 10h and 4min.On the first day of January in Boston, sunrise is at 6:58 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 5:13 pm CST.
Sunshine
The average sunshine in January is 4.6h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 2 during January leads to these instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Boston?
Is it cold in Boston during January?
What is the average humidity in January in Boston?
How many days does it rain in January in Boston?
What is the snowiest month in Boston?
How many days does it snow in January in Boston?
What is the average length of the day in January in Boston?
When are sunrise and sunset in January in Boston?
How long on average sun shines in January in Boston?
What are the months with the lowest UV index in Boston?
How high is the UV index in January in Boston?
Average temperature in January
Boston, TN
- Average high temperature in January: 44.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in January: 30.6°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in January
Boston, TN
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in January
Boston, TN
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in January
Boston, TN
- Average humidity in January: 76%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Boston, TN
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in January
Boston, TN
- Average rainfall days in January: 7.7 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (6 days).
Average snowfall in January
Boston, TN
- Average snowfall in January: 0.2"
The months with the highest snowfall are January, February and December (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Boston, TN
- Average snowfall days in January: 2.1 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Boston, TN
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Boston, TN
- Average sunshine days in January: 20.4 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in January
Boston, TN
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Boston, TN
- Average cloud cover in January: 51
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in January
Boston, TN
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
Boston, Tennessee, USA
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