With an elevation of around 3,300 metres (10,800 ft), Gangca County has an alpine subarctic climate (KöppenDwc), with long, very cold, dry, and sunny winters, and short, rainy, mild summers. Average low temperatures are below freezing from late September to mid May; however, due to the wide diurnal temperature variation, the average high is above freezing from March to November inclusive. Despite frequent rain during summer, when a majority of days sees rain, no month has less than 55% of possible sunshine; with monthly percent possible sunshine ranging from 56% in June to 83% in November, the county seat receives 3,012 hours of bright sunshine annually. The monthly 24-hour average temperature ranges from −13.5 °C (7.7 °F) in January to 10.9 °C (51.6 °F) in July, while the annual mean is −0.32 °C (31.4 °F). Over 80% of the annual precipitation of 379 mm (14.9 in) is delivered from June to September.
Climate data for Gangca, elevation 3,302 m (10,833 ft), (1991–2020 normals, extremes 1971–2010)
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