January weather forecastBarnstable, MA
January
Weather in January
Initiating the year, January in Barnstable, Massachusetts welcomes visitors with an average high of 38.3°F (3.5°C) and a low of 30.4°F (-0.9°C), making layers a common sight. The early months of the year bring biting chills to this coastal town, demanding the locals to pull out their heavy coats. Snowfall is a distinct feature of the winter climate, imposing a glistening white blanket over the town. Erratic gusts of wind, driving the snow into spin-drift, add to the chilly ambiance. Families embrace the indoor warmth, coming together in front of fireplaces.Temperature
Barnstable notes the coldest temperatures in January, with a high average of 38.3°F (3.5°C) and a low of 30.4°F (-0.9°C).Humidity
The average relative humidity in January is 75%.Rainfall
In Barnstable, in January, during 8.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Barnstable, during the entire year, the rain falls for 129.6 days and collects up to 13.94" (354mm) of precipitation.Snowfall
Months with snowfall are January through April and December. The months with the most snowfall are January and February, with an average 0.63" (16mm) of accumulated snow.Ocean temperature
In January, the average ocean temperature is 41.5°F (5.3°C).Note: While a brief time in 41.5°F (5.3°C) at 55.4°F (13°C) is already bracing, plunging below 50°F (10°C) can severely affect breathing and introduce a cold shock, relying on your physical state.
Daylight
In Barnstable, the average length of the day in January is 9h and 34min.On the first day of January, sunrise is at 7:08 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:54 pm EST.
Sunshine
In Barnstable, the average sunshine in January is 4.9h.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 minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 2 suggests these recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Barnstable, MA
- Average high temperature in January: 38.3°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in January: 30.4°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in January
Barnstable, MA
- Average pressure in January: 30"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
Barnstable, MA
- Average wind speed in January: 16.4mph
The windiest month (with the highest average wind speed) is January (16.4mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).
Average humidity in January
Barnstable, MA
- Average humidity in January: 75%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).
Average rainfall in January
Barnstable, MA
- Average rainfall in January: 1.02"
The wettest month (with the highest rainfall) is October (1.89").
The driest month (with the least rainfall) is August (0.94").
Average rainfall days in January
Barnstable, MA
- Average rainfall days in January: 8.2 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in January
Barnstable, MA
- Average snowfall in January: 0.63"
The months with the highest snowfall are January and February (0.63").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in January
Barnstable, MA
- Average snowfall days in January: 6.6 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in January
Barnstable, MA
- Average sea temperature in January: 41.5°F
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in January /
Average sunshine in January
Barnstable, MA
- Average daylight in January: 9h and 36min
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 54min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in January
Barnstable, MA
- Average sunshine days in January: 15.6 days
The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is February (14.8 days).
Average UV index in January
Barnstable, MA
- Average UV index in January: 2
The months with the highest UV index are 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
Barnstable, MA
- Average cloud cover in January: 48
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Barnstable, 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).
