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 sea temperature 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
During the coldest month, January, temperatures average a high of 34.9°F (1.6°C) and a low of 26.1°F (-3.3°C).Humidity
The average relative humidity in January is 75%.Rainfall
In Rockport, during January, the rain falls for 8.3 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Rockport, Massachusetts, during the entire year, the rain falls for 150.9 days and collects up to 30.75" (781mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Rockport, during January, snow falls for 7.8 days and regularly aggregates up to 1.93" (49mm) of snow. Throughout the year, in Rockport, there are 27.4 snowfall days, and 9.17" (233mm) of snow is accumulated.Ocean temperature
In January, the average ocean temperature in Rockport is 41.5°F (5.3°C).Note: Dipping into 41.5°F (5.3°C) below 50°F (10°C) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 55.4°F (13°C) can be jarring.
Daylight
In Rockport, Massachusetts, the average length of the day in January is 9h and 28min.On the first day of the month, sunrise is at 7:12 am and sunset at 4:19 pm. On the last day of January, in Rockport, sunrise is at 6:57 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in January is 5h.UV index
The months with the lowest UV index in Rockport, Massachusetts, are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. During bright days, sunglasses that offer UVA and UVB defense are recommended. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the coldest time of year in Rockport?
How cold is it in Rockport in January?
What is the average humidity in January in Rockport?
How much does it rain in Rockport in January?
How many days does it snow in January in Rockport?
How cold is the water in January in Rockport?
How many hours of daylight does Rockport have in January?
What time are sunrise and sunset in January in Rockport?
How long on average sun shines in January in Rockport?
When is the lowest UV index in Rockport?
How high is the UV index in January in Rockport?
Average temperature in January
Rockport, MA
- Average high temperature in January: 34.9°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in January: 26.1°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in January
Rockport, MA
- Average pressure in January: 29.99"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Rockport, MA
- Average wind speed in January: 15.2mph
The windiest month (with the highest average wind speed) is January (15.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.9mph).
Average humidity in January
Rockport, MA
- Average humidity in January: 75%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in January
Rockport, MA
- Average rainfall in January: 2.28"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in January
Rockport, MA
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in January
Rockport, MA
- Average snowfall in January: 1.93"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Rockport, MA
- Average snowfall days in January: 7.8 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in January
Rockport, MA
- Average sea temperature in January: 41.6°F
The best month for swimming (with the highest average sea temperature) is August (66.4°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in January /
Average sunshine in January
Rockport, MA
- 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: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in January
Rockport, MA
- Average sunshine days in January: 15.7 days
The months with the most sunshine days are September and November (16.7 days).
The month with the least sunshine days is February (13.1 days).
Average UV index in January
Rockport, 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
Rockport, 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 27).
Average visibility in January
Rockport, 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).
Rockport, Massachusetts, USA
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