Climate averages 1991–2020

Stoney Creek weather
in August.

A warm, moderately wet month: the 2nd warmest and the joint 2nd driest of the year.

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

Average high 25.8°C Daytime mean, August
Average low 17.6°C Night-time mean, August
Rainfall 69 mm 9 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Stoney Creek · average highYear overview

August is a warm month in Stoney Creek: daytime highs average 25.8°C and nights cool to about 17.6°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 69 mm of rain on roughly 9 days, which makes August a moderately wet month (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 57 min on an average August day.

The nearest other city in this atlas is Hamilton (8 km away). In August its highs average 25.4°C, about as warm as Stoney Creek, with 69 mm of rain.

Among the 86 cities listed in Canada, Stoney Creek ranks 3rd of 86 for the warmest August highs and joint 30th of 86 for the driest August (rainfall, lowest first). The mean August high of those 86 cities is 23.8°C; Stoney Creek is 2.0°C warmer than that mean.

From August to September, average highs fall by 3.8°C to 22.0°C, and monthly rainfall rises from 69 mm to 77 mm.

The annual picture

August 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. -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

Stoney Creek climate table

1991–2020
Monthly climate averages for Stoney Creek, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January -0.5°C-7.9°C-7.9°C7111.39.49 h
February 0.3°C-8.3°C-8.3°C578.610.510 h
March 5.3°C-3.9°C-3.9°C699.911.912 h
April 12.2°C2.3°C2.3°C9411.413.413 h
May 19.1°C9.0°C9.0°C8311.214.615 h
June 24.3°C15.1°C15.1°C8611.515.315 h
July 26.8°C18.1°C18.1°C7710.015.015 h
August, selected 25.8°C17.6°C17.6°C699.414.014 h
September 22.0°C14.1°C14.1°C779.312.513 h
October 14.9°C7.9°C7.9°C8511.011.111 h
November 8.1°C1.8°C1.8°C7910.39.810 h
December 2.5°C-3.3°C-3.3°C7110.69.19 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

August in nearby cities

Distance from Stoney Creek

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

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