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Stoney Creek, Ontario climate
Dfb Warm-summer humid continental
Stoney Creek has a strongly seasonal cool-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 28°C, while the coldest is January averaging around −8°C at night. Precipitation is fairly even year-round, totalling about 792 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Stoney Creek climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 0 | 1 | 6 | 12 | 19 | 24 | 28 | 27 | 23 | 15 | 9 | 3 |
| Avg temp (°C) | −4 | −3 | 1 | 7 | 13 | 19 | 22 | 21 | 17 | 11 | 5 | −1 |
| Avg low (°C) | −8 | −8 | −4 | 2 | 8 | 13 | 16 | 15 | 11 | 6 | 1 | −4 |
| Precipitation (mm) | 55 | 52 | 67 | 81 | 73 | 77 | 80 | 54 | 67 | 71 | 59 | 56 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 0 | 1 | 6 | 12 | 19 | 24 |
| Avg temp (°C) | −4 | −3 | 1 | 7 | 13 | 19 |
| Avg low (°C) | −8 | −8 | −4 | 2 | 8 | 13 |
| Precipitation (mm) | 55 | 52 | 67 | 81 | 73 | 77 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 27 | 23 | 15 | 9 | 3 |
| Avg temp (°C) | 22 | 21 | 17 | 11 | 5 | −1 |
| Avg low (°C) | 16 | 15 | 11 | 6 | 1 | −4 |
| Precipitation (mm) | 80 | 54 | 67 | 71 | 59 | 56 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 74 | 73 | 73 | 72 | 67 | 63 | 62 | 62 | 72 | 75 | 77 |
| Relative humidity (%) | 89 | 88 | 82 | 77 | 73 | 70 | 65 | 67 | 70 | 78 | 84 | 88 |
| Wind speed (km/h) | 15.1 | 15.2 | 14.0 | 12.8 | 10.5 | 9.5 | 9.0 | 8.6 | 9.4 | 10.9 | 11.8 | 13.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 74 | 73 | 73 | 72 | 67 |
| Relative humidity (%) | 89 | 88 | 82 | 77 | 73 | 70 |
| Wind speed (km/h) | 15.1 | 15.2 | 14.0 | 12.8 | 10.5 | 9.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 63 | 62 | 62 | 72 | 75 | 77 |
| Relative humidity (%) | 65 | 67 | 70 | 78 | 84 | 88 |
| Wind speed (km/h) | 9.0 | 8.6 | 9.4 | 10.9 | 11.8 | 13.0 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 22 years of daily observations at Hamilton Rbg CS, a weather station, about 14 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.