Gansu weather in December
December is one of the least pleasant months in Gansu: highs of 1°C (34°F) and about 2 mm (0.1 in) of rain on average. Nights average -11°C (13°F) and cloud cover 39% (NASA POWER, 2001–2025 averages). It is the driest month of the year and the 2nd coolest. Compared with November, it is cooler and drier; January brings highs of 0°C (32°F) and 4 mm (0.2 in) of rain.
Figures are long-term averages for Lanzhou, the largest city in Gansu. See below for other places.
Is December a good time to visit Gansu?
least pleasant month Weather score 52/100.
December is one of the least pleasant months for weather in Gansu. For better conditions, consider Apr–Sep.
Does it rain a lot in Gansu in December?
No, it is usually dry: about 2 mm (0.1 in) falls in an average December. It is the driest month of the year.
How warm is Gansu in December?
Days average 1°C (34°F) and nights -11°C (13°F).
Gansu weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 0°C (32°F) | -12°C (11°F) | 4 mm | 48% | least pleasant |
| February | 4°C (39°F) | -9°C (16°F) | 6 mm | 54% | least pleasant |
| March | 10°C (49°F) | -4°C (24°F) | 11 mm | 58% | least pleasant |
| April | 17°C (62°F) | 1°C (34°F) | 25 mm | 62% | best |
| May | 21°C (70°F) | 6°C (43°F) | 52 mm | 67% | best |
| June | 25°C (78°F) | 11°C (52°F) | 64 mm | 69% | best |
| July | 27°C (81°F) | 13°C (56°F) | 83 mm | 63% | best |
| August | 26°C (79°F) | 12°C (54°F) | 86 mm | 63% | best |
| September | 21°C (69°F) | 8°C (46°F) | 61 mm | 67% | best |
| October | 15°C (58°F) | 1°C (34°F) | 30 mm | 55% | fair |
| November | 7°C (45°F) | -5°C (23°F) | 8 mm | 41% | least pleasant |
| December | 1°C (34°F) | -11°C (13°F) | 2 mm | 39% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Gansu in December
Weather can differ a lot within Gansu: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Lanzhou | 1°C (34°F) | -11°C (13°F) | 2 mm | least pleasant |
| Qingyang | 3°C (37°F) | -8°C (17°F) | 4 mm | least pleasant |
| Tianshui | 3°C (37°F) | -7°C (19°F) | 3 mm | least pleasant |
| Wuwei | 0°C (31°F) | -10°C (14°F) | 2 mm | least pleasant |
| Zhangye | -1°C (30°F) | -10°C (13°F) | 2 mm | least pleasant |
| Pingliang | 2°C (36°F) | -8°C (17°F) | 3 mm | least pleasant |
| Jiuquan | -1°C (29°F) | -11°C (12°F) | 2 mm | least pleasant |
| Dingxi | 1°C (33°F) | -11°C (13°F) | 2 mm | least pleasant |
| Baiyin | 1°C (34°F) | -10°C (14°F) | 2 mm | least pleasant |
| Linxia Chengguanzhen | 1°C (34°F) | -11°C (13°F) | 2 mm | least pleasant |
| Jiayuguan | -1°C (31°F) | -10°C (14°F) | 3 mm | least pleasant |
| Jinchang | 0°C (32°F) | -10°C (14°F) | 1 mm | least pleasant |