Jiuzhai Valley has a subtropical to temperate monsoon climate. Valleys are warm and dry, the middle mountain slopes cold and damp. At Nuo Ri Lang Waterfall & visitor centre at an altitude of 2,400m (7,875 feet) the mean temperature is 7.3ºC, the mean January temperature is -3.7ºC and the mean July temperature is 16.8ºC. Although the official temperatures are not too high, summer temeratures often reach 30ºC.

The total annual rainfall is 761mm but in the cloud forest between 2,700m and 3,500m it is at least 1,000mm. 80% of the rain falls between May and October as the monsoon moves up in the valley giving mild, cloudy, moderately humid summers. Above 3,500m the climate is colder and drier. Snow falls vary but usually falls between October and April with December to February receiving the heaviest falls.

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Jiuzhaigou is noted for its fresh air in the world, with an atmospheric visibility of 50 kilometers. Situated in a temperate zone. Jiuzhaigou has lots of sunny days, cool summer and less wind in winter, with favorable conditions for tourism, sightseeing and holidays.

Here is a form of the average temperature and precipitation in each month for your reference:

Month	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
Temperature('C)	-1	2.5	4	8.7	11	14	17	16	12	8.3	2.4	2.3
Precipitation(mm)	15	24	36	43	87	96	104	82	76	53.2	26	18

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