Climate averages 1991–2020

Deyang weather
in December.

A cool, very dry month: the 11th warmest and the driest of the year.

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

Average high 10.5°C Daytime mean, December
Average low 4.4°C Night-time mean, December
Rainfall 9.7 mm 4 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Deyang · average highYear overview

December is a cool month in Deyang: daytime highs average 10.5°C and nights cool to about 4.4°C. By daytime temperature it is the 11th warmest of the 12 months.

Expect about 9.7 mm of rain on roughly 4 days, which makes December a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 10 min on an average December day.

The nearest other city in this atlas is Luojiang (23 km away). In December its highs average 10.3°C, about as warm as Deyang, with 9.7 mm of rain.

Among the 884 cities listed in China, Deyang ranks joint 365th of 884 for the warmest December highs and joint 235th of 884 for the driest December (rainfall, lowest first). The mean December high of those 884 cities is 7.5°C; Deyang is 3.0°C warmer than that mean.

From December to January, average highs fall by 1.3°C to 9.2°C, and monthly rainfall rises from 9.7 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. 05101520253035 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 2500

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

Every month, side by side

Deyang climate table

1991–2020
Monthly climate averages for Deyang, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 9.2°C2.9°C2.9°C113.810.410 h
February 11.7°C4.8°C4.8°C134.211.111 h
March 16.5°C8.5°C8.5°C195.312.012 h
April 22.5°C13.3°C13.3°C367.012.913 h
May 26.6°C17.7°C17.7°C599.013.714 h
June 28.9°C21.0°C21.0°C11011.014.114 h
July 29.8°C22.7°C22.7°C24918.214.014 h
August 29.2°C22.3°C22.3°C21917.113.313 h
September 25.0°C19.0°C19.0°C13313.612.412 h
October 20.1°C14.6°C14.6°C479.111.411 h
November 15.5°C9.6°C9.6°C204.910.611 h
December, selected 10.5°C4.4°C4.4°C9.73.510.210 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 Deyang

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

Luojiang lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.