Baiyin climate
Baiyin (Gansu, China) has a cold semi-arid climate (Köppen BSk). The average temperature over the year is 9 °C49 °F, and about 337 mm13 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Baiyin climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 033 | −1112 | −522 | 30.1 | 31 |
| Feb | 440 | −818 | −229 | 50.2 | 28 |
| Mar | 1151 | −326 | 439 | 80.3 | 26 |
| Apr | 1865 | 337 | 1051 | 190.7 | 8 |
| May | 2373 | 847 | 1660 | 381.5 | 0 |
| Jun | 2882 | 1356 | 2169 | 502.0 | 0 |
| Jul | 3085 | 1660 | 2373 | 642.5 | 0 |
| Aug | 2882 | 1458 | 2170 | 692.7 | 0 |
| Sep | 2272 | 949 | 1661 | 481.9 | 0 |
| Oct | 1661 | 337 | 949 | 240.9 | 6 |
| Nov | 847 | −424 | 236 | 70.3 | 27 |
| Dec | 135 | −1014 | −425 | 20.1 | 31 |
| Year | 3085 | −1112 | 949 | 33713 | 158 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 59% | 46% | 2.8 | 9:55 |
| Feb | 55% | 52% | 3.7 | 10:48 |
| Mar | 48% | 56% | 4.8 | 11:52 |
| Apr | 43% | 60% | 5.7 | 13:05 |
| May | 44% | 64% | 6.2 | 14:06 |
| Jun | 47% | 65% | 6.2 | 14:39 |
| Jul | 53% | 59% | 6.0 | 14:25 |
| Aug | 57% | 59% | 5.4 | 13:32 |
| Sep | 62% | 64% | 4.3 | 12:21 |
| Oct | 59% | 54% | 3.7 | 11:11 |
| Nov | 56% | 40% | 3.1 | 10:10 |
| Dec | 58% | 39% | 2.7 | 9:40 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Baiyin is like
The warmest month is July, with an average high of 30 °C85 °F and a low of 16 °C60 °F. The coldest is January, when highs average 0 °C33 °F and lows −11 °C12 °F. Seasons are strongly marked: the warmest month is on average 28 °C50.4 °F warmer than the coldest.
It is dry, with about 337 mm13 in of precipitation per year. The wettest three-month stretch is June–August, which brings 54% of the annual total. Months with less than 20 mm0.8 in on average: November–April. The wettest month is August (69 mm2.7 in), the driest is December (2 mm0.1 in).
Relative humidity ranges from 43% in April to 62% in September. The clearest skies (lowest average cloud amount, 39%) are typical of December. Average wind speed near the ground ranges from 7 km/h (4 mph) in December to 11 km/h (7 mph) in May. Daylight lasts from about 9.7 hours in December to 14.6 hours in June.
A lasting snow cover is typical in December–February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 14 cm).
Best time to visit Baiyin
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–September: average highs of 22 °C72 °F to 30 °C85 °F with 38 mm1.5 in to 69 mm2.7 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 0 °C33 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Baiyin
- Winter (December–February) — highs 033 to 4 °C40 °F, lows −1112 to −8 °C18 °F, about 3 mm0.1 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1151 to 23 °C73 °F, lows −326 to 8 °C47 °F, about 22 mm0.9 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 2882 to 30 °C85 °F, lows 1356 to 16 °C60 °F, about 61 mm2.4 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs 847 to 22 °C72 °F, lows −424 to 9 °C49 °F, about 26 mm1.0 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
How Baiyin compares
Compared with Lanzhou, about 62 km to the southwest, Baiyin is on average 2.1 °C3.7 °F cooler and receives 22% less precipitation (337 mm13 in vs 431 mm17 in). The difference is largest in January (2.9 °C5.2 °F cooler).
Of the 547 places in China covered by World Climates, Baiyin is the 449th warmest by annual mean temperature and the 509th wettest by annual precipitation. See all of them on the China climate page.
Places in other countries with the most similar temperature and rainfall pattern: Changam-chon (North Korea, Dwa), Billings (United States, Dfa) and Chongjin (North Korea, Dwa).
Nearby places
- Lanzhou 62 km · 11 °C52 °F · 431 mm17 in
- Dingxi 116 km · 9 °C48 °F · 496 mm20 in
- Linxia Chengguanzhen 136 km · 10 °C50 °F · 532 mm21 in
- Zhongwei 140 km · 11 °C53 °F · 225 mm8.8 in
- Nianbo 157 km · 9 °C48 °F · 470 mm19 in
- Guyuan 199 km · 8 °C47 °F · 484 mm19 in
- Wuwei 205 km · 10 °C51 °F · 289 mm11 in
- Xining 216 km · 8 °C46 °F · 504 mm20 in
Frequently asked questions
What is the warmest month in Baiyin?
July is the warmest month in Baiyin, with an average high of 30 °C (85 °F) and an average low of 16 °C (60 °F).
What is the coldest month in Baiyin?
January is the coldest month, with an average high of 0 °C (33 °F) and an average low of -11 °C (12 °F).
When does it rain the most in Baiyin?
August is the wettest month with about 69 mm (2.7 in) of precipitation; December is the driest with about 2 mm (0.1 in).
What is the best time to visit Baiyin?
Judging by long-term averages, the most comfortable months are May–September.
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 1,792 m, while Baiyin lies at about 1,723 m. Temperatures on this page were therefore adjusted by +0.4 °C0.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.