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
January and February represent the coldest period, with an average high-temperature of 39°F (3.9°C).Humidity
In Harwich Port, the average relative humidity in January is 75%.Rainfall
In Harwich Port, in January, during 9.5 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Harwich Port, Massachusetts, during the entire year, the rain falls for 142.4 days and collects up to 22.09" (561mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In January, it is snowing for 6 days. Throughout January, 1.34" (34mm) of snow is accumulated. Throughout the year, there are 20.8 snowfall days, and 4.37" (111mm) of snow is accumulated.Ocean temperature
In Harwich Port, in January, the average water temperature is 41.5°F (5.3°C).Note: To swim in 41.5°F (5.3°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.
Daylight
In January, the average length of the day is 9h and 34min.On the first day of the month, sunrise is at 7:07 am and sunset at 4:20 pm. On the last day of January, sunrise is at 6:53 am and sunset at 4:53 pm EST.
Sunshine
In January, the average sunshine is 4.5h.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 value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
Is January cold?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
What is the ocean temperature in January?
How many hours of daylight does Harwich Port have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Harwich Port have in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Harwich Port, MA
- Average high temperature in January: 39°F
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°F).
- Average low temperature in January: 31.6°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 (31.6°F).
Average pressure in January
Harwich Port, 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 (29.93"Hg).
Average wind speed in January
Harwich Port, MA
- Average wind speed in January: 18mph
The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity in January
Harwich Port, MA
- Average humidity in January: 75%
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in January
Harwich Port, MA
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in January
Harwich Port, MA
- Average rainfall days in January: 9.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in January
Harwich Port, MA
- Average snowfall in January: 1.34"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Harwich Port, MA
- Average snowfall days in January: 6 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Harwich Port, 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
Harwich Port, MA
- Average daylight in January: 9h and 4min
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 3min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in January
Harwich Port, MA
- Average sunshine days in January: 13 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).
Average UV index in January
Harwich 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
Harwich Port, MA
- Average cloud cover in January: 52
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in January
Harwich 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).
Harwich Port, Massachusetts, USA
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