Climate averages 1991–2020
Baiyin weather
by month.
See how the year changes. July has the highest average daily maximum; December has the lowest average monthly precipitation.
Pleasant-weather months by our simple rule: MayJune
Long-term climate patterns, not a forecast for a particular trip.
Across the year Baiyin averages a daytime high of 14.7°C and a nighttime low of 3.7°C, with about 328 mm of rain on roughly 59 days. July is the warmest month (average high 27.6°C) and January the coolest (-0.6°C). August is the wettest month with 73 mm; December is the driest with 1.6 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): May and June. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Baiyin
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Baiyin climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.6°C-10.9°C | -10.9°C | 3.4 | 1.2 | 10.010 h |
| February | 4.1°C-6.7°C | -6.7°C | 4.2 | 1.4 | 10.811 h |
| March | 10.8°C-1.1°C | -1.1°C | 9.5 | 2.9 | 11.912 h |
| April | 17.4°C4.4°C | 4.4°C | 18 | 4.6 | 13.113 h |
| May | 22.0°C9.3°C | 9.3°C | 30 | 5.6 | 14.114 h |
| June | 26.1°C14.0°C | 14.0°C | 40 | 6.8 | 14.615 h |
| July | 27.6°C16.2°C | 16.2°C | 59 | 8.6 | 14.414 h |
| August | 25.7°C15.1°C | 15.1°C | 73 | 10.2 | 13.614 h |
| September | 20.4°C10.6°C | 10.6°C | 54 | 9.4 | 12.412 h |
| October | 14.2°C4.5°C | 4.5°C | 29 | 6.2 | 11.311 h |
| November | 7.4°C-2.5°C | -2.5°C | 5.7 | 1.7 | 10.310 h |
| December | 0.9°C-8.9°C | -8.9°C | 1.6 | 0.5 | 9.710 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- LanzhouChina · 62 kmHigh 16.6°C · Low 5.4°C · 457 mm rain a year
- DingxiChina · 116 kmHigh 13.3°C · Low 2.3°C · 555 mm rain a year
- Linxia ChengguanzhenChina · 136 kmHigh 13.3°C · Low 1.7°C · 627 mm rain a year
- ZhongweiChina · 140 kmHigh 17.6°C · Low 5.4°C · 243 mm rain a year
- NianboChina · 157 kmHigh 13.2°C · Low 2.2°C · 534 mm rain a year
- GuyuanChina · 199 kmHigh 13.1°C · Low 2.3°C · 604 mm rain a year
- WuweiChina · 205 kmHigh 15.0°C · Low 2.5°C · 201 mm rain a year
- LuomenChina · 214 kmHigh 15.7°C · Low 5.8°C · 643 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+8, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 36.50°, 104.20° (6 km from the city centre), adjusted down by 0.2°C for the difference between the city's elevation (1,723 m) and the cell's (1,691 m). Rain comes from the 0.25° cell at 36.50°, 104.25°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.