Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Welcoming December, Nahant observes a shift in the average high-temperature, falling from November's chilly 49.5°F (9.7°C) to a wintry 39.9°F (4.4°C). Throughout December, the temperature tends to fall to a consistent average low of 30.2°F (-1°C).Humidity
In Nahant, the average relative humidity in December is 76%.Rainfall
December is the month with the most rainfall. Rain falls for 10.3 days and accumulates 2.99" (76mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 5.3 days. Throughout December, 3.43" (87mm) of snow is accumulated. In Nahant, Massachusetts, during the entire year, snow falls for 29.9 days and aggregates up to 15.59" (396mm) of snow.Ocean temperature
In December, the average ocean temperature in Nahant is 46.2°F (7.9°C).Note: With an efficient thermal swimsuit, one can navigate 46.2°F (7.9°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
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 6:54 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:21 pm EST.
Sunshine
February and December, with an average of 4.6h of sunshine, are months with the least sunshine in Nahant.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 low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 in December translates into these instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
How cold is December in Nahant?
What is the average humidity in December in Nahant?
What is the rainiest month in Nahant?
How much does it rain in Nahant in December?
How much does it snow in Nahant in December?
What is the ocean temperature in December in Nahant?
What is the month with the shortest days in Nahant?
How many hours of daylight does Nahant have in December?
When is the sunrise / sunset in December in Nahant?
What is the month with the least sunshine in Nahant?
How long on average sun shines in December in Nahant?
What is the month with the lowest UV index in Nahant?
How high is the UV index in December in Nahant?
Average temperature in December
Nahant, MA
- Average high temperature in December: 39.9°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Nahant, MA
- Average pressure in December: 30.03"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 December
Nahant, MA
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Nahant, MA
- Average humidity in December: 76%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
Nahant, MA
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Nahant, MA
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Nahant, MA
- Average snowfall in December: 3.43"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Nahant, MA
- Average snowfall days in December: 5.3 days
The months with the highest number of snowfall days are January and February (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in December
Nahant, MA
- Average sea temperature in December: 46.3°F
The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in December /
Average sunshine in December
Nahant, MA
- Average daylight in December: 9h and 1min
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 6min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in December
Nahant, MA
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in December
Nahant, MA
- Average UV index in December: 2
The months with the highest UV index are June, 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 December
Nahant, MA
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Nahant, MA
- Average visibility in December: 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).
Nahant, Massachusetts, USA
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