Baiyin climate

Name: Baiyin
Address: CN

Baiyin is warmest in July, with average highs of 28 °C, and coldest in January, when nights average -12 °C. August is the wettest month (70 mm) and December the driest (1.6 mm). Figures are 1991–2020 climate normals.

Across a full year Baiyin averages 325 mm of rain, 74 days above 25 °C and 144 days below freezing.

China · population 294,400 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month July 28 °C
Coldest month January -12 °C
Driest month December 2 mm
Wettest month August 70 mm
Least cloud December 35 % cloud
Hottest on record July 38 °C
Coldest on record January -27 °C

What to expectBaiyin through the year

Baiyin has a clear annual cycle: average daily highs run from -0.6 °C in January to 28 °C in July, a swing of 28 °C in mean temperature across the year.

Counted across a normal year, 74 days a year reach 25 °C, 21 of them reach 30 °C, 144 nights drop below freezing. The warmest reading in the 1991–2020 record is 38 °C, in July.

Rain is strongly seasonal. August averages 70 mm against 2 mm in December — 44 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	-0.6 °C	3 mm	42 %
February	4.1 °C	4 mm	49 %
March	10.7 °C	10 mm	56 %
April	17.3 °C	18 mm	57 %
May	21.9 °C	30 mm	62 %
June	26.0 °C	40 mm	62 %
July	27.5 °C	60 mm	54 %
August	25.6 °C	70 mm	54 %
September	20.4 °C	53 mm	59 %
October	14.2 °C	27 mm	53 %
November	7.3 °C	6 mm	37 %
December	0.9 °C	2 mm	35 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	-0.6 °C	-11.6 °C	-5.9 °C	14.1 °C	-27.1 °C	0	0	31
February	4.1 °C	-7.4 °C	-1.4 °C	18.7 °C	-19.9 °C	0	0	28
March	10.7 °C	-1.8 °C	4.8 °C	25.7 °C	-15.5 °C	0	0	22
April	17.3 °C	4.0 °C	11.2 °C	31.1 °C	-7.2 °C	2	0	4
May	21.9 °C	9.3 °C	16.0 °C	32.0 °C	-1.3 °C	9	0	0
June	26.0 °C	14.1 °C	20.4 °C	34.8 °C	3.7 °C	19	5	0
July	27.5 °C	16.2 °C	22.0 °C	38.4 °C	7.8 °C	22	10	0
August	25.6 °C	14.9 °C	20.3 °C	35.7 °C	7.9 °C	18	5	0
September	20.4 °C	10.2 °C	15.3 °C	31.8 °C	-1.2 °C	4	0	0
October	14.2 °C	3.8 °C	9.1 °C	27.5 °C	-9.1 °C	0	0	4
November	7.3 °C	-3.2 °C	2.1 °C	18.7 °C	-13.9 °C	0	0	24
December	0.9 °C	-9.7 °C	-4.3 °C	11.0 °C	-23.9 °C	0	0	31

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	3 mm	1	9.9 h/day	42 %	48 %	13 km/h
February	4 mm	1	11 h/day	49 %	45 %	16 km/h
March	10 mm	3	12 h/day	56 %	40 %	19 km/h
April	18 mm	4	13 h/day	57 %	39 %	21 km/h
May	30 mm	6	14 h/day	62 %	42 %	21 km/h
June	40 mm	6	15 h/day	62 %	46 %	19 km/h
July	60 mm	9	14 h/day	54 %	55 %	18 km/h
August	70 mm	11	14 h/day	54 %	61 %	17 km/h
September	53 mm	9	12 h/day	59 %	65 %	16 km/h
October	27 mm	6	11 h/day	53 %	61 %	15 km/h
November	6 mm	2	10 h/day	37 %	53 %	14 km/h
December	2 mm	1	9.7 h/day	35 %	48 %	13 km/h

How Baiyin compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Baiyin	28 °C	-12 °C	325 mm	74
Lanzhou · China	29 °C	-8.7 °C	441 mm	98
Dingxi · China	25 °C	-11 °C	553 mm	40
Linxia Chengguanzhen · China	25 °C	-12 °C	644 mm	39
Nianbo · China	25 °C	-14 °C	523 mm	39
Guyuan · China	25 °C	-12 °C	607 mm	39
Wuwei · China	28 °C	-12 °C	204 mm	86

Where Baiyin ranks

Ranking	Position	Value
The driest places in Asia in December	28thof 50	1.6 mm
Places with the best weather in Asia in June	30thof 50	90/100
Places with the best weather in Asia in August	33rdof 50	86/100
Places with the best weather in Asia in July	38thof 50	83/100
The coolest places in Asia in September	48thof 50	20 °C

Planning a trip? See the best time to visit Baiyin.

QuestionsCommon questions about Baiyin’s climate

When is the best time to visit Baiyin?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, August sit closest to 20 °C on average, July is the warmest month and December the driest. The month-by-month table above has the full picture.

How hot does Baiyin get?

In July, the warmest month, daily highs average 28 °C. About 21 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average -12 °C in January, the coldest month. A normal year has 144 nights below freezing.

Which month is wettest in Baiyin?

August, averaging 70 mm over 11 days with rain. The driest month is December with 2 mm. The year as a whole averages 325 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Baiyin rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.