December weather forecastPenticton, Canada
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Penticton, Canada, with an average temperature fluctuating between -11°C (12.2°F) and -2.6°C (27.3°F).Temperature
The coldest temperatures occur during December, when averages reach a peak of -2.6°C (27.3°F) and a low of -11°C (12.2°F).Humidity
In Penticton, the average relative humidity in December is 91%.Rainfall
In Penticton, in December, during 8 rainfall days, 13mm (0.51") of precipitation is typically accumulated. Throughout the year, there are 106 rainfall days, and 136mm (5.35") of precipitation is accumulated.Snowfall
Months with snowfall in Penticton are January through April, November and December. December is the month with the most snowfall in Penticton. Snow falls for 11.5 days and accumulates 57mm (2.24") of snow.Daylight
The month with the shortest days is December, with an average of 8h and 12min of daylight.On the first day of the month, sunrise is at 7:34 am and sunset at 4:01 pm. On the last day of December, sunrise is at 7:54 am and sunset at 4:09 pm PST.
Sunshine
In December, the average sunshine in Penticton is 4.8h.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Penticton, Canada
- Average high temperature in December: -2.6°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is December (-2.6°C).
- Average low temperature in December: -11°C
The month with the highest average low temperature is August (7.8°C).
The coldest month (with the lowest average low temperature) is February (-11.3°C).
Average pressure in December
Penticton, Canada
- Average pressure in December: 1021.4mbar
The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1013.8mbar).
Average wind speed in December
Penticton, Canada
- Average wind speed in December: 7.9km/h
The windiest month (with the highest average wind speed) is November (8.2km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in December
Penticton, Canada
- Average humidity in December: 91%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (55%).
Average rainfall in December
Penticton, Canada
- Average rainfall in December: 13mm
The wettest months (with the highest rainfall) are May and June (14mm).
The driest month (with the least rainfall) is August (6mm).
Average rainfall days in December
Penticton, Canada
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is March (11.7 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in December
Penticton, Canada
- Average snowfall in December: 57mm
The month with the highest snowfall is December (57mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Penticton, Canada
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Penticton, Canada
- Average daylight in December: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in December: 4h and 48min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Penticton, Canada
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in December
Penticton, Canada
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Penticton, Canada
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in December
Penticton, Canada
- Average visibility in December: 6km
The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January and February (5km).





