Climate averages 1991–2020

Hegang weather
in September.

A mild, moderately wet month: the 4th warmest and the 8th driest of the year.

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

Average high 18.9°C Daytime mean, September
Average low 8.2°C Night-time mean, September
Rainfall 70 mm 9 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Hegang · average highYear overview

September is a mild month in Hegang: daytime highs average 18.9°C and nights cool to about 8.2°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 70 mm of rain on roughly 9 days, which makes September a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 37 min on an average September day.

The nearest other city in this atlas is Jiamusi (61 km away). In September its highs average 20.1°C, 1.1°C warmer than Hegang, with 58 mm of rain.

Among the 884 cities listed in China, Hegang ranks joint 853rd of 884 for the warmest September highs and joint 269th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Hegang is 6.8°C cooler than that mean.

From September to October, average highs fall by 9.2°C to 9.7°C, and monthly rainfall falls from 70 mm to 41 mm.

The annual picture

September 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. -30-25-20-15-10-5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly precipitation

Average total · mm
Average monthly precipitation totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

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

Every month, side by side

Hegang climate table

1991–2020
Monthly climate averages for Hegang, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -13.4°C-25.5°C-25.5°C4.61.38.99 h
February -7.6°C-21.4°C-21.4°C5.71.910.210 h
March 1.2°C-11.6°C-11.6°C183.811.912 h
April 11.6°C-1.8°C-1.8°C377.613.614 h
May 18.7°C5.7°C5.7°C7311.615.115 h
June 23.3°C12.7°C12.7°C10213.115.916 h
July 25.6°C16.5°C16.5°C14314.115.516 h
August 23.9°C15.1°C15.1°C13513.914.314 h
September, selected 18.9°C8.2°C8.2°C709.412.613 h
October 9.7°C-0.6°C-0.6°C416.510.911 h
November -2.2°C-11.2°C-11.2°C163.69.49 h
December -12.4°C-22.2°C-22.2°C9.82.78.59 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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

September in nearby cities

Distance from Hegang

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