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 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
Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a frosty 7.6°C (45.7°F) to an icy 2.2°C (36°F). Recording a slight decline in temperature during the nights, Welland's December temperatures average at a freezing cold -2°C (28.4°F).Humidity
In Welland, the average relative humidity in December is 81%.Rainfall
In Welland, in December, it is raining for 10.4 days, with typically 58mm (2.28") of accumulated precipitation. Throughout the year, there are 170.3 rainfall days, and 804mm (31.65") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 13.5 days. Throughout December, 94mm (3.7") of snow is accumulated. Throughout the year, there are 64.1 snowfall days, and 576mm (22.68") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:29 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 4:52 pm EST.
Sunshine
In Welland, Canada, the average sunshine in December is 2.8h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: In December, an average UV index of 1 transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Welland have in December?
When is the lowest UV index in Welland?
What is the UV index reading in December?
Average temperature in December
Welland, Canada
- Average high temperature in December: 2.2°C
The warmest month (with the highest average high temperature) is July (25.7°C).
The month with the lowest average high temperature is January (-1.5°C).
- Average low temperature in December: -2°C
The month with the highest average low temperature is July (17.5°C).
The coldest month (with the lowest average low temperature) is January (-6.7°C).
Average pressure in December
Welland, Canada
- Average pressure in December: 1017.9mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in December
Welland, Canada
- Average wind speed in December: 18.2km/h
The windiest month (with the highest average wind speed) is January (19.6km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).
Average humidity in December
Welland, Canada
- Average humidity in December: 81%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is September (75%).
Average rainfall in December
Welland, Canada
- Average rainfall in December: 58mm
The wettest month (with the highest rainfall) is July (86mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in December
Welland, Canada
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is July (18.7 days).
The months with the least rainy days are January and February (8.1 days).
Average snowfall in December
Welland, Canada
- Average snowfall in December: 94mm
The month with the highest snowfall is February (179mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Welland, Canada
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Welland, Canada
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Welland, Canada
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is September (12.6 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in December
Welland, Canada
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Welland, Canada
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Welland, Canada
- Average visibility in December: 9km
The month with the highest visibility is September (10km).
The months with the lowest visibility are January and February (8km).
