December weather forecast
Welland, Canada

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Weather in December

December, the first month of the winter in Welland, is also an icy month, with an average temperature varying between 2.2°C (36°F) and -2°C (28.4°F).

Temperature

December's onset brings a slight change in high-temperatures, falling from a chilly 7.6°C (45.7°F) in November to an icy 2.2°C (36°F). Nights in December in Welland showcase an average temperature of -2°C (28.4°F), slightly cooler than the daytime.

Humidity

In Welland, the average relative humidity in December is 81%.

Rainfall

In December, the rain falls for 10.4 days. Throughout December, 58mm (2.28") of precipitation is accumulated. Throughout the year, there are 170.3 rainfall days, and 804mm (31.65") of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Welland. In December, in Welland, it is snowing for 13.5 days. Throughout December, 94mm (3.7") of snow is accumulated. In Welland, during the entire year, snow falls for 64.1 days and aggregates up to 576mm (22.68") of snow.

Daylight

The month with the shortest days in Welland, Canada, 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 December, the average sunshine is 2.8h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 1 in December transforms into the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

How cold is December in Welland?

In December, the average high-temperature and low-temperature in Welland, Canada, are 2.2°C (36°F) and -2°C (28.4°F) respectively.

What is the average humidity in December in Welland?

The average relative humidity in December in Welland is 81%.

How many days does it rain in December in Welland?

In Welland, in December, during 10.4 rainfall days, 58mm (2.28") of precipitation is typically accumulated.

How many days does it snow in December in Welland?

In December, in Welland, it is snowing for 13.5 days. Throughout December, 94mm (3.7") of snow is accumulated.

What is the month with the shortest days in Welland?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

What is the average length of the day in December in Welland?

In Welland, Canada, the average day length in December is 9h and 4min.

When is the sunrise / sunset in December in Welland?

In December, on the first day of the month, sunrise is at 7:29 am and sunset at 4:43 pm. On the last day of the month, in Welland, sunrise is at 7:48 am and sunset at 4:52 pm EST.

How long on average sun shines in December in Welland?

The average sunshine duration in December in Welland, Canada, is 2.8h.

What are the months with the lowest UV index in Welland?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Welland.

What is the UV index reading in December in Welland?

In Welland, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Welland, Canada

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).

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Average pressure in December
Welland, Canada

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).

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Average wind speed in December
Welland, Canada

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).

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Average humidity in December
Welland, Canada

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%).

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Average rainfall in December
Welland, Canada

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).

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Average rainfall days in December
Welland, Canada

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).

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Average snowfall in December
Welland, Canada

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).

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Average snowfall days in December
Welland, Canada

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).

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Average daylight in December /
Average sunshine in December
Welland, Canada

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).

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Average sunshine days in December
Welland, Canada

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).

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Average UV index in December
Welland, Canada

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).

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Average cloud cover in December
Welland, Canada

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).

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Average visibility in December
Welland, Canada

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).

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Welland, Canada

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