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
The start of December comes with a small reduction in the average high-temperature, subtly receding from a frosty 8.4°C (47.1°F) in November to an icy 3.5°C (38.3°F). The December nights show a slight decrease to a mean low-temperature of -1.5°C (29.3°F).Humidity
The average relative humidity in December in Chester is 81%.Rainfall
The month with the most rainfall is December, when the rain falls for 13.8 days and typically aggregates up to 98mm (3.86") of precipitation.Snowfall
January through May, November and December are months with snowfall. In Chester, in December, during 6.6 snowfall days, 59mm (2.32") of snow is typically accumulated. In Chester, Canada, during the entire year, snow falls for 43.7 days and aggregates up to 461mm (18.15") of snow.Sea temperature
In Chester, the average seawater temperature in December is 5.7°C (42.3°F).Note: Engaging in a swim in 5.7°C (42.3°F) can threaten life. Brief exposure to 13°C (55.4°F) waters is uneasy, and submersion below 10°C (50°F) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
The month with the shortest days in Chester is December, with an average of 8h and 54min of daylight.On the first day of December in Chester, sunrise is at 7:34 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 4:47 pm AST.
Sunshine
In December, the average sunshine is 3.7h.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Chester in December?
What is the average humidity in December in Chester?
What is the wettest month in Chester?
How many days does it rain in December in Chester?
How much does it snow in Chester in December?
What is the sea water temperature in December in Chester?
What is the month with the shortest days in Chester?
How many hours of daylight does Chester have in December?
When is the sunrise / sunset in December in Chester?
How long on average sun shines in December in Chester?
How high is the UV index in December in Chester?
Average temperature in December
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, Canada
- Average sea temperature in December: 5.7°C
The best month for swimming (with the highest average sea temperature) is August (16.8°C).
The coldest months (with the lowest average sea temperature) are February and March (1.1°C).
Average daylight in December /
Average sunshine in December
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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).
