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
The beginning of December brings a minor change in the average high-temperature, shifting from a frosty 6.5°C (43.7°F) in November to a cold 2.1°C (35.8°F). A slight dip in temperature to a subzero cold -1.4°C (29.5°F) marks the average nights in Catalina during December.Humidity
September through December, with an average relative humidity of 82%, are the least humid months.Rainfall
In Catalina, in December, during 12.6 rainfall days, 89mm (3.5") of precipitation is typically accumulated. Throughout the year, in Catalina, Canada, there are 160.6 rainfall days, and 791mm (31.14") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Catalina, in December, snow falls for 10.1 days, with typically accumulated 95mm (3.74") of snow. In Catalina, Canada, during the entire year, snow falls for 53.6 days and aggregates up to 441mm (17.36") of snow.Sea temperature
In Catalina, in December, the average water temperature is 1.9°C (35.4°F).Note: Within the context of swimming, this state is extremely cold, dangerous, and can result in death. Hypothermia happens quickly in the absence of protective insulated waterproof clothing.
Daylight
The month with the shortest days in Catalina is December, with an average of 8h and 24min of daylight.On the first day of the month, sunrise is at 7:33 am and sunset at 4:09 pm. On the last day of December, in Catalina, sunrise is at 7:54 am and sunset at 4:17 pm NST.
Sunshine
The average sunshine in December in Catalina is 3.2h.UV index
The months with the lowest UV index in Catalina are January through April, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Catalina in December?
What are the least humid months in Catalina?
What is the average humidity in December in Catalina?
How much does it rain in Catalina in December?
How many days does it snow in December in Catalina?
What is the sea temperature in December in Catalina?
What is the month with the shortest days in Catalina?
How many hours of daylight does Catalina have in December?
When are sunrise and sunset in December in Catalina?
How many hours of sunshine does Catalina have in December?
What is the month with the lowest UV index in Catalina?
How high is the UV index in December in Catalina?
Average temperature in December
Catalina, Canada
- Average high temperature in December: 2.1°C
The warmest month (with the highest average high temperature) is August (18°C).
The month with the lowest average high temperature is February (-0.8°C).
- Average low temperature in December: -1.4°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is February (-4.8°C).
Average pressure in December
Catalina, Canada
- Average pressure in December: 1011.1mbar
The month with the highest atmospheric pressure is September (1015.6mbar).
The month with the lowest atmospheric pressure is February (1008.4mbar).
Average wind speed in December
Catalina, Canada
- Average wind speed in December: 29.3km/h
The windiest month (with the highest average wind speed) is February (30.5km/h).
The calmest month (with the lowest average wind speed) is June (19.9km/h).
Average humidity in December
Catalina, Canada
- Average humidity in December: 82%
The months with the highest relative humidity are June and July (86%).
The months with the lowest relative humidity are September, October, November and December (82%).
Average rainfall in December
Catalina, Canada
- Average rainfall in December: 89mm
The wettest month (with the highest rainfall) is January (91mm).
The driest month (with the least rainfall) is August (47mm).
Average rainfall days in December
Catalina, Canada
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is October (17.1 days).
The month with the least rainy days is February (8 days).
Average snowfall in December
Catalina, Canada
- Average snowfall in December: 95mm
The month with the highest snowfall is January (110mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in December
Catalina, Canada
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Catalina, Canada
- Average sea temperature in December: 1.9°C
The best month for swimming (with the highest average sea temperature) is August (13.7°C).
The coldest month (with the lowest average sea temperature) is March (-0.9°C).
Average daylight in December /
Average sunshine in December
Catalina, Canada
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is August (Average sunshine: 8h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in December
Catalina, Canada
- Average sunshine days in December: 8.2 days
The month with the most sunshine days is August (13.7 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in December
Catalina, Canada
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, November and December (UV index 1).
Average cloud cover in December
Catalina, Canada
- Average cloud cover in December: 67
The months with the most cloud cover are January and February (Cloud cover 70).
The months with the least cloud cover are August and September (Cloud cover 47).
Average visibility in December
Catalina, Canada
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January, February, March and December (8km).
Catalina, Canada
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