Nianbo climate

Name: Nianbo
Address: CN

Nianbo is warmest in July, with average highs of 25 °C, and coldest in January, when nights average -14 °C. August is the wettest month (93 mm) and December the driest (3.2 mm). Figures are 1991–2020 climate normals.

Across a full year Nianbo averages 523 mm of rain, 39 days above 25 °C and 157 days below freezing.

China · population 260,184 · 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 25 °C
Coldest month January -14 °C
Driest month December 3 mm
Wettest month August 93 mm
Least cloud December 37 % cloud
Hottest on record July 36 °C
Coldest on record February -29 °C

What to expectNianbo through the year

Nianbo has a clear annual cycle: average daily highs run from -0.5 °C in January to 25 °C in July, a swing of 27 °C in mean temperature across the year.

Counted across a normal year, 39 days a year reach 25 °C, 3 of them reach 30 °C, 157 nights drop below freezing. The warmest reading in the 1991–2020 record is 36 °C, in July.

Rain is strongly seasonal. August averages 93 mm against 3 mm in December — 29 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	-0.5 °C	4 mm	46 %
February	3.2 °C	8 mm	52 %
March	9.0 °C	20 mm	57 %
April	15.5 °C	34 mm	59 %
May	19.6 °C	61 mm	67 %
June	23.0 °C	66 mm	66 %
July	24.6 °C	93 mm	60 %
August	23.4 °C	93 mm	61 %
September	18.8 °C	84 mm	65 %
October	13.2 °C	48 mm	56 %
November	6.7 °C	11 mm	38 %
December	1.2 °C	3 mm	37 %

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	-0.5 °C	-13.8 °C	-7.1 °C	11.8 °C	-28.6 °C	0	0	31
February	3.2 °C	-9.7 °C	-3.2 °C	17.2 °C	-29.0 °C	0	0	28
March	9.0 °C	-3.5 °C	2.8 °C	23.7 °C	-18.6 °C	0	0	25
April	15.5 °C	2.7 °C	9.3 °C	29.8 °C	-15.1 °C	1	0	7
May	19.6 °C	8.0 °C	13.9 °C	30.4 °C	-4.9 °C	3	0	1
June	23.0 °C	12.8 °C	18.0 °C	31.7 °C	3.4 °C	9	0	0
July	24.6 °C	15.0 °C	19.9 °C	35.8 °C	7.1 °C	15	2	0
August	23.4 °C	14.0 °C	18.7 °C	32.5 °C	4.6 °C	11	1	0
September	18.8 °C	9.2 °C	14.1 °C	29.2 °C	-2.2 °C	1	0	0
October	13.2 °C	2.2 °C	7.8 °C	25.0 °C	-12.2 °C	0	0	8
November	6.7 °C	-4.6 °C	0.8 °C	16.9 °C	-18.9 °C	0	0	26
December	1.2 °C	-11.2 °C	-5.3 °C	12.5 °C	-24.0 °C	0	0	31

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	4 mm	1	9.9 h/day	46 %	54 %	12 km/h
February	8 mm	3	11 h/day	52 %	51 %	13 km/h
March	20 mm	5	12 h/day	57 %	47 %	14 km/h
April	34 mm	8	13 h/day	59 %	46 %	15 km/h
May	61 mm	11	14 h/day	67 %	51 %	14 km/h
June	66 mm	12	15 h/day	66 %	56 %	13 km/h
July	93 mm	14	14 h/day	60 %	63 %	13 km/h
August	93 mm	15	14 h/day	61 %	66 %	13 km/h
September	84 mm	15	12 h/day	65 %	70 %	12 km/h
October	48 mm	10	11 h/day	56 %	65 %	12 km/h
November	11 mm	3	10 h/day	38 %	54 %	12 km/h
December	3 mm	1	9.7 h/day	37 %	50 %	12 km/h

How Nianbo 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
Nianbo	25 °C	-14 °C	523 mm	39
Xining · China	23 °C	-13 °C	485 mm	23
Linxia Chengguanzhen · China	25 °C	-12 °C	644 mm	39
Lanzhou · China	29 °C	-8.7 °C	441 mm	98
Baiyin · China	28 °C	-12 °C	325 mm	74
Wuwei · China	28 °C	-12 °C	204 mm	86
Dingxi · China	25 °C	-11 °C	553 mm	40

Where Nianbo ranks

Ranking	Position	Value
The coolest places in Asia in September	22ndof 50	19 °C
The coolest places in Asia in August	26thof 50	23 °C
Places with the best weather in Asia in July	34thof 50	84/100
Places with the best weather in Asia in June	41stof 50	89/100
The coolest places in Asia in July	44thof 50	25 °C
The coolest places in Asia in October	46thof 50	13 °C

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

QuestionsCommon questions about Nianbo’s climate

When is the best time to visit Nianbo?

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 Nianbo get?

In July, the warmest month, daily highs average 25 °C. About 3 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.

How cold does it get in winter?

Nights average -14 °C in January, the coldest month. A normal year has 157 nights below freezing.

Which month is wettest in Nianbo?

August, averaging 93 mm over 15 days with rain. The driest month is December with 3 mm. The year as a whole averages 523 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 Nianbo 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.