December weather forecast
Changchun, China

December possesses the quintessential chill of Changchun’s winter. The city landscapes transform under the influence of the year's coldest temperatures, matched by an equal chill factor. With reduced daylight hours and low UV index, winter truly asserts its presence in the city. Precipitation reaches an annual low with only 5mm (0.2") falling throughout the month, adding to the icy ambiance. The month wraps up the year with a proverbial winter blanket covering Changchun, making it a winter wonderland once more.

Temperature

Witnessing a clear drop in December, the average high-temperature declines from November's icy 1.7°C (35.1°F) to a freezing cold -6.6°C (20.1°F). In Changchun, an average nighttime temperature of -16.1°C (3°F) is expected during December.

Humidity

In Changchun, the average relative humidity in December is 66%.

Rainfall

In Changchun, during December, the rain falls for 5.4 days and regularly aggregates up to 5mm (0.2") of precipitation. In Changchun, during the entire year, the rain falls for 98.7 days and collects up to 570mm (22.44") of precipitation.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of December, sunrise is at 06:52 and sunset at 16:02. On the last day of the month, sunrise is at 07:12 and sunset at 16:10 CST.

Sunshine

The month with the least sunshine is December, with an average of 5.3h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 1 in December leads to these recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.