Climate averages 1991–2020
Dingxi weather
in September.
A mild, moderately wet month: the 5th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Dingxi: daytime highs average 18.9°C and nights cool to about 9.2°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 84 mm of rain on roughly 12 days, which makes September a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Lanzhou (89 km away). In September its highs average 22.3°C, 3.5°C warmer than Dingxi, with 72 mm of rain.
Among the 884 cities listed in China, Dingxi ranks joint 853rd of 884 for the warmest September highs and joint 417th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Dingxi is 6.8°C cooler than that mean.
From September to October, average highs fall by 5.6°C to 13.3°C, and monthly rainfall falls from 84 mm to 53 mm.
The annual picture
September in context
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
Dingxi climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -0.1°C-10.1°C | -10.1°C | 7.3 | 2.9 | 10.010 h |
| February | 2.8°C-8.0°C | -8.0°C | 11 | 3.3 | 10.911 h |
| March | 8.9°C-3.1°C | -3.1°C | 21 | 5.9 | 11.912 h |
| April | 15.4°C1.8°C | 1.8°C | 35 | 7.6 | 13.113 h |
| May | 19.6°C6.7°C | 6.7°C | 56 | 9.6 | 14.014 h |
| June | 23.3°C11.2°C | 11.2°C | 68 | 9.8 | 14.515 h |
| July | 25.0°C14.0°C | 14.0°C | 100 | 12.7 | 14.314 h |
| August | 23.7°C13.4°C | 13.4°C | 103 | 12.3 | 13.514 h |
| September, selected | 18.9°C9.2°C | 9.2°C | 84 | 11.9 | 12.412 h |
| October | 13.3°C3.1°C | 3.1°C | 53 | 10.5 | 11.311 h |
| November | 7.2°C-3.2°C | -3.2°C | 14 | 4.3 | 10.310 h |
| December | 1.8°C-7.9°C | -7.9°C | 3.6 | 1.4 | 9.810 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
September in nearby cities
- Lanzhou in SeptemberChina · 89 kmHigh 22.3°C · Low 12.3°C · 72 mm rain
- Luomen in SeptemberChina · 98 kmHigh 21.2°C · Low 12.7°C · 94 mm rain
- Pan’an in SeptemberChina · 101 kmHigh 21.3°C · Low 12.9°C · 94 mm rain
- Xinxing in SeptemberChina · 109 kmHigh 21.5°C · Low 13.2°C · 95 mm rain
- Gangu Chengguanzhen in SeptemberChina · 113 kmHigh 21.9°C · Low 13.5°C · 95 mm rain
- Baiyin in SeptemberChina · 116 kmHigh 20.4°C · Low 10.6°C · 54 mm rain
- Xingguo in SeptemberChina · 124 kmHigh 21.8°C · Low 13.4°C · 108 mm rain
- Linxia Chengguanzhen in SeptemberChina · 128 kmHigh 18.8°C · Low 9.4°C · 104 mm rain
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 limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Dingxi) is explained once on the Dingxi year overview and on the Sources, method and limits page.