Climate at a glance · Thornhill
Annual mean46°day and night
Precipitation33.58 ina year
Warmest monthJulyavg high 81°
Coldest monthFebruaryavg low 14°
Average temperature by month
High · lowJanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation by month
33.58 in a yearJanFebMarAprMayJunJulAugSepOctNovDec
Monthly averages
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 29° | 30° | 40° | 54° | 66° | 76° | 81° | 79° | 71° | 57° | 45° | 34° |
| Avg low | 14° | 14° | 22° | 34° | 44° | 55° | 59° | 58° | 50° | 38° | 30° | 20° |
| Precip, in | 2.44 | 1.97 | 2.09 | 2.91 | 3.15 | 3.27 | 3.11 | 2.99 | 3.23 | 2.68 | 3.15 | 2.60 |
Climate normals 1981–2010 · Toronto Buttonville A station (7 km away) · Environment and Climate Change Canada
43.8150°N, 79.4242°W · Elevation 574 ft