Climate averages 1991–2020

Chenggu weather
in January.

A cold, fairly dry month: the coolest and the driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 7.2°C Daytime mean, January

Average low -0.7°C Night-time mean, January

Rainfall 22 mm 6 days with ≥1 mm

Daylight 10 h Sunrise to sunset, per day

January is a cold month in Chenggu: daytime highs average 7.2°C and nights cool to about -0.7°C. By daytime temperature it is the coolest month of the year.

Expect about 22 mm of rain on roughly 6 days, which makes January a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 14 min on an average January day.

The nearest other city in this atlas is Hanzhong (29 km away). In January its highs average 7.1°C, about as warm as Chenggu, with 28 mm of rain.

Among the 884 cities listed in China, Chenggu ranks joint 443rd of 884 for the warmest January highs and joint 457th of 884 for the driest January (rainfall, lowest first). The mean January high of those 884 cities is 5.9°C; Chenggu is 1.4°C warmer than that mean.

From January to February, average highs rise by 2.6°C to 9.8°C, and monthly rainfall rises from 22 mm to 34 mm.

The annual picture

January in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Chenggu climate table

1991–2020

Monthly climate averages for Chenggu, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January, selected	7.2°C-0.7°C	-0.7°C	22	5.9	10.210 h
February	9.8°C1.2°C	1.2°C	34	7.5	11.011 h
March	14.4°C4.7°C	4.7°C	53	9.9	12.012 h
April	20.0°C9.6°C	9.6°C	69	11.0	13.013 h
May	23.6°C14.0°C	14.0°C	109	12.4	13.914 h
June	26.9°C18.1°C	18.1°C	137	11.6	14.314 h
July	28.5°C21.2°C	21.2°C	224	18.1	14.114 h
August	27.8°C20.8°C	20.8°C	169	16.2	13.413 h
September	23.0°C16.6°C	16.6°C	198	15.7	12.412 h
October	18.2°C11.4°C	11.4°C	121	14.2	11.411 h
November	13.2°C5.6°C	5.6°C	68	10.1	10.510 h
December	8.4°C0.5°C	0.5°C	27	6.2	10.010 h

Rainfall is the average of the 30 separate monthly totals. A rain 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

January in nearby cities

Distance from Chenggu

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chenggu) is explained once on the Chenggu year overview and on the Sources, method and limits page.