Lanzhou weather in December
In December, Lanzhou has an average high of 4 °C40 °F and an average low of −7 °C19 °F, with about 2 mm0.1 in of precipitation. It is the 11th warmest month of the year and the driest.
How December compares with other months
Compared with November, December is 5.8 °C10.3 °F cooler on average and drier by 6 mm0.2 in. Compared with January, December is 1.2 °C2.1 °F warmer on average. Daylight lasts about 9.7 hours around the middle of the month. Average relative humidity is 59% and the average cloud amount 39%.
Is December a good time to visit Lanzhou?
December is not among the most comfortable months by our comfort score: it is cool (average high 4 °C40 °F) and nights are cold (average low −7 °C19 °F). The most comfortable months in Lanzhou are April–June and September.
What to wear in December
For Lanzhou in December, pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
December in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Lanzhou | 440 | −719 | 20.1 |
| Baiyin | 135 | −1014 | 20.1 |
| Linxia Chengguanzhen | 541 | −720 | 20.1 |
| Dingxi | 236 | −915 | 20.1 |
| Nianbo | 439 | −1014 | 20.1 |
| Tongren | 439 | −1015 | 20.1 |
| Xining | 338 | −1112 | 20.1 |
| Zhongwei | 236 | −917 | 10.0 |
| Qiaotou | 235 | −1210 | 20.1 |
Nearby places that are more than 1 °C1.8 °F cooler: Baiyin, Dingxi, Nianbo and Tongren.
Other months in Lanzhou
- January3 °C38 °F / −8 °C17 °F
- February7 °C45 °F / −5 °C23 °F
- March13 °C56 °F / −1 °C31 °F
- April20 °C68 °F / 4 °C40 °F
- May25 °C77 °F / 10 °C50 °F
- June29 °C84 °F / 15 °C59 °F
- July31 °C88 °F / 17 °C62 °F
- August29 °C85 °F / 16 °C61 °F
- September24 °C75 °F / 11 °C52 °F
- October18 °C65 °F / 5 °C41 °F
- November11 °C51 °F / −2 °C29 °F
- December4 °C40 °F / −7 °C19 °F
Frequently asked questions
How warm is Lanzhou in December?
In December the average high in Lanzhou is 4 °C (40 °F) and the average low is -7 °C (19 °F).
Does it rain a lot in Lanzhou in December?
On average about 2 mm (0.1 in) of precipitation falls in December; it ranks 12th of the 12 months.
Is December the warmest month in Lanzhou?
No. The warmest month in Lanzhou is July, with an average high of 31 °C (88 °F). The coldest month is January, with an average low of -8 °C (17 °F).
How long is the day in Lanzhou in December?
In the middle of December the day in Lanzhou lasts about 9.7 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Lanzhou in December?
The average relative humidity in December is about 59%. This is a long-term average for the whole day.
How cloudy is Lanzhou in December?
On average about 39% of the sky is covered by cloud in December. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 2,068 m, while Lanzhou lies at about 1,521 m. Temperatures on this page were therefore adjusted by +3.6 °C6.4 °F using the standard lapse rate of 6.5 °C per 1,000 m.