Climate at a glance · Alliston
Annual mean8°day and night
Precipitation834 mma year
Warmest monthJulyavg high 27°
Coldest monthJanuaryavg low -11°
Average temperature by month
High · lowJanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation by month
834 mm a yearJanFebMarAprMayJunJulAugSepOctNovDec
Monthly averages
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | -3° | -1° | 4° | 12° | 19° | 24° | 27° | 26° | 22° | 14° | 7° | 1° |
| Avg low | -11° | -10° | -6° | 1° | 7° | 12° | 15° | 14° | 10° | 4° | -1° | -6° |
| Precip, mm | 54 | 49 | 54 | 64 | 78 | 81 | 78 | 82 | 80 | 71 | 82 | 61 |
Climate normals 1981–2010 · Alliston Nelson station (1 km away) · Environment and Climate Change Canada
44.1501°N, 79.8663°W · Elevation 223 m