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
The arrival of December corresponds with a shift in temperature, down from a frosty 7.6°C (45.7°F) in November to a cold 0.6°C (33.1°F). During the nights in December, an average low-temperature of -6.4°C (20.5°F) is observed.Humidity
In December, the average relative humidity is 42%.Rainfall
December is the month with the least rainfall. Rain falls for 1.4 days and accumulates 2mm (0.08") of precipitation.Snowfall
January through April, November and December are months with snowfall. In Yanchang, in December, snow falls for 2.2 days, with typically accumulated 11mm (0.43") of snow. Throughout the year, in Yanchang, there are 14 snowfall days, and 110mm (4.33") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 07:33 and sunset at 17:24. On the last day of the month, sunrise is at 07:51 and sunset at 17:34 CST.
Sunshine
In December, the average sunshine is 6.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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?
What is the driest month?
How much does it rain in Yanchang in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Yanchang?
When is the sunrise / sunset in December?
How long on average sun shines in December in Yanchang?
When is the lowest UV index in Yanchang?
What is the UV index intensity in December?
Average temperature in December
Yanchang, China
- Average high temperature in December: 0.6°C
The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is January (-0.7°C).
- Average low temperature in December: -6.4°C
The month with the highest average low temperature is July (20.3°C).
The coldest month (with the lowest average low temperature) is January (-8.3°C).
Average pressure in December
Yanchang, China
- Average pressure in December: 1029.5mbar
The month with the highest atmospheric pressure is December (1029.5mbar).
The month with the lowest atmospheric pressure is July (1004.6mbar).
Average wind speed in December
Yanchang, China
- Average wind speed in December: 10.8km/h
The windiest month (with the highest average wind speed) is April (14.9km/h).
The calmest month (with the lowest average wind speed) is January (9.8km/h).
Average humidity in December
Yanchang, China
- Average humidity in December: 42%
The month with the highest relative humidity is September (57%).
The months with the lowest relative humidity are March and April (36%).
Average rainfall in December
Yanchang, China
- Average rainfall in December: 2mm
The wettest month (with the highest rainfall) is August (70mm).
The driest month (with the least rainfall) is December (2mm).
Average rainfall days in December
Yanchang, China
- Average rainfall days in December: 1.4 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (1.3 days).
Average snowfall in December
Yanchang, China
- Average snowfall in December: 11mm
The month with the highest snowfall is January (32mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Yanchang, China
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Yanchang, China
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 6h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in December
Yanchang, China
- Average sunshine days in December: 28.6 days
The month with the most sunshine days is December (28.6 days).
The month with the least sunshine days is July (16 days).
Average UV index in December
Yanchang, China
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Yanchang, China
- Average cloud cover in December: 17
The month with the most cloud cover is September (Cloud cover 30).
The month with the least cloud cover is December (Cloud cover 17).
Average visibility in December
Yanchang, China
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
