Hamilton
Canada
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Hamilton, Canada

A bird
A bird's eye view of the Central Business District of Hamilton City in Canada, a view of the road network, and intense cloudy sky seen
December, the first month of the winter, in Hamilton, is also a wintry month, with average temperature varying between 1.4°C (34.5°F) and -2.8°C (27°F).

Temperature

In Hamilton, the average high-temperature decreases, from a chilly 7.1°C (44.8°F) in November, to a cold 1.4°C (34.5°F). The average low-temperature, in Hamilton, is -2.8°C (27°F).

Humidity

In December, the average relative humidity in Hamilton is 82%.

Rainfall

In Hamilton, it is raining for 11.4 days, with typically 49mm (1.93") of accumulated precipitation. In Hamilton, during the entire year, the rain falls for 175.2 days and collects up to 711mm (27.99") of precipitation.

Snowfall

Months with snowfall in Hamilton are January through May, November and December. In Hamilton, during December, snow falls for 12.4 days and regularly aggregates up to 74mm (2.91") of snow. In Hamilton, during the entire year, snow falls for 58.6 days, and aggregates up to 463mm (18.23") of snow.

Sea temperature

In Hamilton, the average water temperature is 4.8°C (40.6°F).
Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

The month with the shortest days in Hamilton is December, with an average of 9h of daylight.

Sunshine

In Hamilton, Canada, the average sunshine in December is 3.5h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Hamilton, Canada. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 1 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Hamilton?

In December, in Hamilton, Canada, the average high-temperature is 1.4°C (34.5°F), and the average low-temperature is -2.8°C (27°F).

What is the average humidity in December in Hamilton?

In Hamilton, the average relative humidity in December is 82%.

How much does it rain in Hamilton in December?

In Hamilton, Canada, during December, the rain falls for 11.4 days and regularly aggregates up to 49mm (1.93") of precipitation.

How many days does it snow in December in Hamilton?

In December, in Hamilton, Canada, it is snowing for 12.4 days. Throughout December, 74mm (2.91") of snow is accumulated.

What is the sea temperature in December in Hamilton?

In Hamilton, Canada, in December, the average water temperature is 4.8°C (40.6°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

What is the month with the shortest days in Hamilton?

With an average of 9h of daylight, December has the shortest days of the year in Hamilton.

How many hours of daylight does Hamilton have in December?

In Hamilton, Canada, the average length of the day in December is 9h.

How many hours of sunshine does Hamilton have in December?

In Hamilton, Canada, the average sunshine in December is 3.5h.

What is the month with the lowest UV index in Hamilton?

With an average maximum UV index of 1, December is the month with the lowest UV index in Hamilton, Canada.

What is the UV index reading in December in Hamilton?

In December, the average daily maximum UV index in Hamilton is 1. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Hamilton, Canada
  • Average high temperature in December: 1.4°C

The warmest month (with the highest average high temperature) is July (25.4°C).
The month with the lowest average high temperature is January (-2.3°C).

  • Average low temperature in December: -2.8°C

The month with the highest average low temperature is July (17.3°C).
The coldest month (with the lowest average low temperature) is January (-7.3°C).

Average humidity in December - Hamilton, Canada
  • Average humidity in December: 82%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (75%).

Average rainfall in December - Hamilton, Canada
  • Average rainfall in December: 49mm

The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the lowest rainfall) is September (44mm).

Average rainfall days in December - Hamilton, Canada
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is July (19.2 days).
The month with the lowest number of rainy days is February (9.3 days).

Average snowfall in December - Hamilton, Canada
  • Average snowfall in December: 74mm

The month with the highest snowfall is February (137mm).
Months with the lowest snowfall are June, July, August, September and October (0mm).

Average snowfall days in December - Hamilton, Canada
  • Average snowfall days in December: 12.4 days

The month with the highest number of snowfall days is January (14.8 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average sea temperature in December - Hamilton, Canada
  • Average sea temperature in December: 4.8°C

The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (1.2°C).

Average daylight in December / Average sunshine in December - Hamilton, Canada
  • Average daylight in December: 9h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9h).

  • Average sunshine in December: 3.5h

The month with most sunshine is July (Average sunshine: 10.6h).
The month with least sunshine is January (Average sunshine: 3.2h).

Average UV index in December - Hamilton, Canada
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).