January weather forecastYarmouth Port, MA
January
Weather in January
January, like December, in Yarmouth Port, Massachusetts, is a wintry winter month, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 30.4°F (-0.9°C).Temperature
January, with its high-temperature average of 38.3°F (3.5°C) and a low-temperature average of 30.4°F (-0.9°C), is the coldest month.Humidity
In Yarmouth Port, the average relative humidity in January is 75%.Rainfall
In Yarmouth Port, Massachusetts, in January, it is raining for 8.2 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 129.6 rainfall days, and 13.94" (354mm) of precipitation is accumulated.Snowfall
January through April and December are months with snowfall in Yarmouth Port. The months with the most snowfall are January and February, with an average 0.63" (16mm) of accumulated snow.Daylight
In Yarmouth Port, the average length of the day in January is 9h and 34min.On the first day of January, sunrise is at 7:07 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:54 pm EST.
Sunshine
In January, the average sunshine is 4.9h.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 reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during January leads to these instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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 daylight in January /
Average sunshine in January
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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
Yarmouth Port, 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).





