December weather forecastCili, China

December

Weather in December

The first month of the winter, December, is still a cool month in Cili, China, with an average temperature fluctuating between 10.8°C (51.4°F) and 3.7°C (38.7°F).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a refreshing 16°C (60.8°F) to a fresh 10.8°C (51.4°F). Nighttime temperatures consistently average an icy 3.7°C (38.7°F) during December.

Humidity

In Cili, the average relative humidity in December is 61%.

Rainfall

The month with the least rainfall is December, when the rain falls for 6.9 days and typically collects 23mm (0.91") of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Cili, during December, snow falls for 1.4 days and regularly aggregates up to 22mm (0.87") of snow. Throughout the year, there are 6.7 snowfall days, and 115mm (4.53") of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 18min of daylight.
On the first day of the month, sunrise is at 07:12 and sunset at 17:36. On the last day of December, sunrise is at 07:29 and sunset at 17:47 CST.

Sunshine

In Cili, the average sunshine in December is 6h.

UV index

The average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In December, a regular UV index of 3 translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

Frequently asked questions

The high-temperature during December is 10.8°C (51.4°F) and the low-temperature is 3.7°C (38.7°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 29°C (84.2°F).

In December, the average relative humidity is 61%.

The month with the least rainfall is December, when the rain falls for 6.9 days and typically collects 23mm (0.91") of precipitation.

In Cili, China, in December, during 6.9 rainfall days, 23mm (0.91") of precipitation is typically accumulated.

In Cili, during December, snow falls for 1.4 days and regularly aggregates up to 22mm (0.87") of snow.

With an average of 10h and 18min of daylight, December has the shortest days of the year.

In December, the average day length is 10h and 18min.

On the first day of December, sunrise is at 07:12 and sunset at 17:36. On the last day of the month, sunrise is at 07:29 and sunset at 17:47 CST.

The average sunshine duration in December is 6h.

In Cili, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Cili, China

  • Average high temperature in December: 10.8°C

The warmest months (with the highest average high temperature) are July and August (31.5°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in December: 3.7°C

The month with the highest average low temperature is July (23.3°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).

Average pressure in December
Cili, China

  • Average pressure in December: 1026.7mbar

The month with the highest atmospheric pressure is January (1027mbar).
The month with the lowest atmospheric pressure is July (1003.8mbar).

Average wind speed in December
Cili, China

  • Average wind speed in December: 6.6km/h

The windiest month (with the highest average wind speed) is March (8.2km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).

Average humidity in December
Cili, China

  • Average humidity in December: 61%

The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).

Average rainfall in December
Cili, China

  • Average rainfall in December: 23mm

The wettest month (with the highest rainfall) is June (144mm).
The driest month (with the least rainfall) is December (23mm).

Average rainfall days in December
Cili, China

  • Average rainfall days in December: 6.9 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is December (6.9 days).

Average snowfall in December
Cili, China

  • Average snowfall in December: 22mm

The month with the highest snowfall is January (43mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in December
Cili, China

  • Average snowfall days in December: 1.4 days

The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Cili, China

  • Average daylight in December: 10h and 18min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 5h and 30min).

Average sunshine days in December
Cili, China

  • Average sunshine days in December: 21.7 days

The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in December
Cili, China

  • Average UV index in December: 3

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in December
Cili, China

  • Average cloud cover in December: 34

The months with the most cloud cover are February, March, May, June and September (Cloud cover 45).
The month with the least cloud cover is December (Cloud cover 34).

Average visibility in December
Cili, China

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are April, May, June, July, August, September, October and November (9km).