January weather forecast
Falmouth, MA

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Weather in January

The new year in Falmouth, Massachusetts greets inhabitants with chilliness typically found in the heart of winter. The month of January showcases a characteristic sharp decline in temperature and this month is no exception with the lowest temperature recorded at 29.8°F (-1.2°C). The snow begins its descent in January, transforming Falmouth into a wintry wonderland. It's also a fantastic time for enjoying hearty soups and warm beverages to stave off the winter chill. Residents may opt to stay indoors, as the wintry conditions present lesser daylight and sunshine in comparison to the impending spring season.

Temperature

January is the month when Falmouth, Massachusetts, experiences its coldest temperatures, averaging a high of 37.9°F (3.3°C) and a low of 29.8°F (-1.2°C).

Humidity

The average relative humidity in January in Falmouth is 75%.

Rainfall

In Falmouth, in January, during 4.7 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. Throughout the year, there are 69.4 rainfall days, and 5.31" (135mm) of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall in Falmouth, Massachusetts. In Falmouth, during January, snow falls for 4.4 days and regularly aggregates up to 0.16" (4mm) of snow. Throughout the year, there are 12.8 snowfall days, and 0.67" (17mm) of snow is accumulated.

Ocean temperature

In Falmouth, the average seawater temperature in January is 41.4°F (5.2°C).
Note: With an efficient thermal swimsuit, one can navigate 41.4°F (5.2°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.

Daylight

The average length of the day in January is 9h and 35min.
On the first day of January in Falmouth, Massachusetts, sunrise is at 7:08 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:56 pm EST.

Sunshine

The average sunshine in January in Falmouth is 5h.

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 of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What part of the year is the coldest in Falmouth?

The month of January sees the average lowest temperatures, reaching 37.9°F (3.3°C) at the peak and 29.8°F (-1.2°C) at the low.

Is January cold in Falmouth?

Falmouth in January has an average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 29.8°F (-1.2°C).

What is the average humidity in January in Falmouth?

In Falmouth, the average relative humidity in January is 75%.

How many days does it rain in January in Falmouth?

In Falmouth, Massachusetts, during January, the rain falls for 4.7 days and regularly aggregates up to 0.43" (11mm) of precipitation.

How much does it snow in Falmouth in January?

In January, in Falmouth, Massachusetts, it is snowing for 4.4 days. Throughout January, 0.16" (4mm) of snow is accumulated.

What is the water temperature in January in Falmouth?

In Falmouth, Massachusetts, in January, the average water temperature is 41.4°F (5.2°C). Swimming in 41.4°F (5.2°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in January in Falmouth?

In Falmouth, Massachusetts, the average day length in January is 9h and 35min.

When are sunrise and sunset in January in Falmouth?

In January, on the first day of the month, sunrise is at 7:08 am and sunset at 4:22 pm. On the last day of the month, in Falmouth, sunrise is at 6:55 am and sunset at 4:56 pm EST.

How long on average sun shines in January in Falmouth?

In Falmouth, Massachusetts, the average sunshine duration in January is 5h.

What are the months with the lowest UV index in Falmouth?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in January in Falmouth?

In Falmouth, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Falmouth, MA

Average temperature in January - Falmouth, MA
  • Average high temperature in January: 37.9°F

The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in January: 29.8°F

The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in January
Falmouth, MA

Average pressure in January - Falmouth, 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).

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Average wind speed in January
Falmouth, MA

Average wind speed in January - Falmouth, MA
  • Average wind speed in January: 15.3mph

The windiest month (with the highest average wind speed) is January (15.3mph).
The calmest months (with the lowest average wind speed) are July and August (10.2mph).

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Average humidity in January
Falmouth, MA

Average humidity in January - Falmouth, MA
  • Average humidity in January: 75%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in January
Falmouth, MA

Average rainfall in January - Falmouth, MA
  • Average rainfall in January: 0.43"

The wettest month (with the highest rainfall) is October (0.71").
The driest months (with the least rainfall) are July, August and September (0.31").

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Average rainfall days in January
Falmouth, MA

Average rainfall days in January - Falmouth, MA
  • Average rainfall days in January: 4.7 days

The month with the highest number of rainy days is July (7.7 days).
The month with the least rainy days is September (4.6 days).

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Average snowfall in January
Falmouth, MA

Average snowfall in January - Falmouth, MA
  • Average snowfall in January: 0.16"

The month with the highest snowfall is December (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
Falmouth, MA

Average snowfall days in January - Falmouth, MA
  • Average snowfall days in January: 4.4 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in January
Falmouth, MA

Average sea temperature in January - Falmouth, MA
  • Average sea temperature in January: 41.3°F

The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).

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Average daylight in January /
Average sunshine in January
Falmouth, MA

Average daylight in January / Average sunshine in January - Falmouth, MA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 5h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).

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Average sunshine days in January
Falmouth, MA

Average sunshine days in January - Falmouth, MA
  • Average sunshine days in January: 23.3 days

The month with the most sunshine days is September (23.9 days).
The month with the least sunshine days is February (20.8 days).

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Average UV index in January
Falmouth, MA

Average UV index in January - Falmouth, 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).

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Average cloud cover in January
Falmouth, MA

Average cloud cover in January - Falmouth, MA
  • Average cloud cover in January: 47

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in January
Falmouth, MA

Average visibility in January - Falmouth, 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).

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Falmouth, Massachusetts, USA

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