St. Catharines vs Ajax Climate
94%matchOn climate, Ajax is a 94% match for St. Catharines. Very close: temperatures within 3°F (2°C), with similar rain, humidity and sun.
St. Catharines gets 34 in (856 mm) of rain a year and Ajax 34 in (876 mm). July is the warmest month in both, with highs of 81°F (27°C) in St. Catharines and 79°F (26°C) in Ajax.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
St. CatharinesAjaxsolid = high, dashed = low
Rain (in per month)
St. CatharinesAjax
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| St. Catharines | Ajax | St. Catharines | Ajax | St. Catharines | Ajax | |
| Jan | 33°F(0°C) | 30°F(-1°C) | 20°F(-6°C) | 16°F(-9°C) | 2.4 in(60 mm) | 2.2 in(56 mm) |
| Feb | 34°F(1°C) | 32°F(0°C) | 21°F(-6°C) | 18°F(-8°C) | 2.0 in(51 mm) | 2.4 in(60 mm) |
| Mar | 42°F(5°C) | 40°F(4°C) | 28°F(-2°C) | 26°F(-3°C) | 2.0 in(52 mm) | 2.1 in(53 mm) |
| Apr | 54°F(12°C) | 52°F(11°C) | 37°F(3°C) | 36°F(2°C) | 3.3 in(85 mm) | 3.3 in(83 mm) |
| May | 66°F(19°C) | 64°F(18°C) | 47°F(9°C) | 46°F(8°C) | 3.2 in(82 mm) | 3.2 in(82 mm) |
| Jun | 76°F(24°C) | 74°F(23°C) | 58°F(14°C) | 56°F(13°C) | 3.3 in(85 mm) | 3.2 in(82 mm) |
| Jul | 81°F(27°C) | 79°F(26°C) | 64°F(18°C) | 61°F(16°C) | 3.2 in(81 mm) | 2.8 in(70 mm) |
| Aug | 79°F(26°C) | 78°F(25°C) | 63°F(17°C) | 60°F(16°C) | 2.8 in(72 mm) | 3.3 in(83 mm) |
| Sep | 72°F(22°C) | 71°F(21°C) | 56°F(13°C) | 53°F(12°C) | 3.0 in(76 mm) | 3.2 in(81 mm) |
| Oct | 60°F(15°C) | 58°F(14°C) | 45°F(7°C) | 42°F(6°C) | 3.0 in(75 mm) | 3.1 in(80 mm) |
| Nov | 48°F(9°C) | 46°F(8°C) | 35°F(2°C) | 33°F(1°C) | 2.8 in(72 mm) | 3.1 in(80 mm) |
| Dec | 38°F(3°C) | 35°F(2°C) | 26°F(-3°C) | 24°F(-5°C) | 2.6 in(65 mm) | 2.6 in(66 mm) |
1991–2020 averages, by calendar month.