Climate normals · 1970–2000
St. Catharines Climate
St. Catharines is a city in Canada (08) with a population of about 136,803. Its average annual temperature is 8.9°C (48°F), with roughly 859 mm of rain per year.
8.9°C
Avg Temp
859
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
St. Catharines Climate
St. Catharines has an average annual temperature of 8.9°C (48°F) and receives about 859 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8.9°C
Avg Temp
859
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -4° / 25° | 55 mm |
| February | -3° / 26° | 49 mm |
| March | 1° / 34° | 56 mm |
| April | 7° / 44° | 76 mm |
| May | 13° / 56° | 79 mm |
| June | 19° / 65° | 81 mm |
| July | 22° / 71° | 77 mm |
| August | 21° / 70° | 74 mm |
| September | 17° / 62° | 90 mm |
| October | 11° / 51° | 72 mm |
| November | 5° / 41° | 82 mm |
| December | -1° / 31° | 68 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit St. Catharines
The most comfortable months to visit St. Catharines are typically August, July and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 27°C high). The coldest is January (near -7°C low). September is usually the wettest month.
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Frequently Asked Questions
The most comfortable months to visit St. Catharines are typically August, July and June, when temperatures are mildest and rainfall is relatively low (1970–2000 climate normals).
St. Catharines, Canada has an average annual temperature of 8.9°C and about 859 mm of precipitation per year. The warmest month is July and the coldest is January.
In July, the hottest month, daily highs in St. Catharines average about 27°C (80°F).
Monthly climate normals (1970–2000) sampled from WorldClim 2.1 at ~9 km resolution. Humidity derived from vapor pressure. City coordinates and population from GeoNames.