Climate averages 1991–2020

Yishan weather
in December.

A cold, very dry month: the 11th warmest and the 2nd driest of the year.

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

Average high 5.3°C Daytime mean, December
Average low -3.2°C Night-time mean, December
Rainfall 13 mm 3 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Yishan · average highYear overview

December is a cold month in Yishan: daytime highs average 5.3°C and nights cool to about -3.2°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 13 mm of rain on roughly 3 days, which makes December a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 45 min on an average December day.

The nearest other city in this atlas is Xinzhai (21 km away). In December its highs average 5.3°C, about as warm as Yishan, with 13 mm of rain.

Among the 884 cities listed in China, Yishan ranks joint 615th of 884 for the warmest December highs and joint 332nd of 884 for the driest December (rainfall, lowest first). The mean December high of those 884 cities is 7.5°C; Yishan is 2.2°C cooler than that mean.

From December to January, average highs fall by 1.7°C to 3.6°C, and monthly rainfall falls from 13 mm to 11 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -10-505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 2000

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

Every month, side by side

Yishan climate table

1991–2020
Monthly climate averages for Yishan, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 3.6°C-5.4°C-5.4°C112.410.010 h
February 6.9°C-3.2°C-3.2°C173.210.811 h
March 12.8°C0.9°C0.9°C233.911.912 h
April 19.8°C7.5°C7.5°C405.813.113 h
May 25.3°C13.5°C13.5°C616.714.114 h
June 29.1°C18.6°C18.6°C698.114.615 h
July 30.2°C22.2°C22.2°C17513.814.414 h
August 28.8°C21.4°C21.4°C16313.713.514 h
September 25.2°C16.2°C16.2°C706.512.412 h
October 19.6°C9.6°C9.6°C314.311.311 h
November 12.0°C2.3°C2.3°C284.210.310 h
December, selected 5.3°C-3.2°C-3.2°C132.69.710 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

December in nearby cities

Distance from Yishan

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 Yishan) is explained once on the Yishan year overview and on the Sources, method and limits page.