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
December
Weather in December
Temperature
December signifies a minor drop in average high-temperature, transitioning from a chilly 8.4°C (47.1°F) in November to a wintry 3.5°C (38.3°F). December nights in Dartmouth witness a mild cool down to an average low of -1.5°C (29.3°F).Humidity
The average relative humidity in December in Dartmouth is 81%.Rainfall
December is the month with the most rainfall in Dartmouth. Rain falls for 13.8 days and accumulates 98mm (3.86") of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Dartmouth, during December, snow falls for 6.6 days and regularly aggregates up to 59mm (2.32") of snow. In Dartmouth, during the entire year, snow falls for 43.7 days and aggregates up to 461mm (18.15") of snow.Sea temperature
In Dartmouth, the average seawater temperature in December is 5.5°C (41.9°F).Note: Staying in 5.5°C (41.9°F) waters for just a few moments at 13°C (55.4°F) can be harrowing, and below 10°C (50°F) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:31 am and sunset at 4:35 pm. On the last day of December, in Dartmouth, sunrise is at 7:51 am and sunset at 4:43 pm AST.
Sunshine
In December, the average sunshine is 3.7h.UV index
In December, the average daily maximum UV index in Dartmouth is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. 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. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Dartmouth in December?
What is the average humidity in December in Dartmouth?
What is the wettest month in Dartmouth?
How many days does it rain in December in Dartmouth?
How much does it snow in Dartmouth in December?
What is the water temperature in December in Dartmouth?
What is the month with the shortest days in Dartmouth?
How many hours of daylight does Dartmouth have in December?
When is the sunrise / sunset in December in Dartmouth?
How long on average sun shines in December in Dartmouth?
How high is the UV index in December in Dartmouth?
Average temperature in December
Dartmouth, Canada
- Average high temperature in December: 3.5°C
The warmest month (with the highest average high temperature) is August (21.9°C).
The month with the lowest average high temperature is February (-0.1°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is August (16.1°C).
The coldest months (with the lowest average low temperature) are January and February (-5.5°C).
Average pressure in December
Dartmouth, Canada
- Average pressure in December: 1014.2mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is February (1012.4mbar).
Average wind speed in December
Dartmouth, Canada
- Average wind speed in December: 21.1km/h
The windiest month (with the highest average wind speed) is January (21.3km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in December
Dartmouth, Canada
- Average humidity in December: 81%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is October (79%).
Average rainfall in December
Dartmouth, Canada
- Average rainfall in December: 98mm
The wettest month (with the highest rainfall) is December (98mm).
The driest month (with the least rainfall) is July (38mm).
Average rainfall days in December
Dartmouth, Canada
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is April (14.8 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Dartmouth, Canada
- Average snowfall in December: 59mm
The month with the highest snowfall is January (113mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Dartmouth, Canada
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Dartmouth, Canada
- Average sea temperature in December: 5.5°C
The best month for swimming (with the highest average sea temperature) is August (17.2°C).
The coldest month (with the lowest average sea temperature) is February (0.8°C).
Average daylight in December /
Average sunshine in December
Dartmouth, Canada
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in December
Dartmouth, Canada
- Average sunshine days in December: 12 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in December
Dartmouth, Canada
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Dartmouth, Canada
- Average cloud cover in December: 62
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Dartmouth, Canada
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
