Climate averages 1991–2020

Laojunmiao weather
in September.

A mild, fairly dry month: the joint 4th warmest and the 8th driest of the year. Meets the pleasant-weather rule

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

Average high 18.3°C Daytime mean, September
Average low 8.3°C Night-time mean, September
Rainfall 26 mm 5 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Laojunmiao · average highYear overview

September is a mild month in Laojunmiao: daytime highs average 18.3°C and nights cool to about 8.3°C. By daytime temperature it is the joint 4th warmest of the 12 months.

Expect about 26 mm of rain on roughly 5 days, which makes September a fairly dry month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 30 min on an average September day.

The nearest other city in this atlas is Jiayuguan (47 km away). In September its highs average 21.1°C, 2.9°C warmer than Laojunmiao, with 18 mm of rain.

Among the 884 cities listed in China, Laojunmiao ranks 864th of 884 for the warmest September highs and joint 26th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Laojunmiao is 7.4°C cooler than that mean.

From September to October, average highs fall by 7.1°C to 11.2°C, and monthly rainfall falls from 26 mm to 9.8 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. -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 1000

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

Every month, side by side

Laojunmiao climate table

1991–2020
Monthly climate averages for Laojunmiao, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -4.0°C-13.6°C-13.6°C4.11.29.710 h
February -0.3°C-10.5°C-10.5°C4.71.510.711 h
March 5.8°C-5.7°C-5.7°C153.511.912 h
April 13.3°C0.8°C0.8°C163.813.213 h
May 18.3°C6.2°C6.2°C286.314.414 h
June 22.8°C11.5°C11.5°C407.514.915 h
July 24.7°C14.4°C14.4°C509.214.715 h
August 23.3°C13.2°C13.2°C477.513.714 h
September, selected 18.3°C8.3°C8.3°C264.812.512 h
October 11.2°C1.2°C1.2°C9.82.711.211 h
November 3.8°C-5.9°C-5.9°C5.91.810.010 h
December -2.1°C-11.7°C-11.7°C4.61.89.49 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 Laojunmiao

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