Ottawa vs Cornwall Climate
98%matchOttawa and Cornwall are a 98% climate match. Very close: temperatures within 2°F (1°C), with similar rain, humidity and sun.
Ottawa gets 37 in (949 mm) of rain a year and Cornwall 40 in (1015 mm). July is the warmest month in both, with highs of 81°F (27°C) in Ottawa and 81°F (27°C) in Cornwall.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
OttawaCornwallsolid = high, dashed = low
Rain (in per month)
OttawaCornwall
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Ottawa | Cornwall | Ottawa | Cornwall | Ottawa | Cornwall | |
| Jan | 22°F(-5°C) | 25°F(-4°C) | 6°F(-14°C) | 8°F(-13°C) | 2.4 in(62 mm) | 3.0 in(77 mm) |
| Feb | 26°F(-3°C) | 27°F(-3°C) | 8°F(-14°C) | 9°F(-13°C) | 2.2 in(57 mm) | 2.4 in(62 mm) |
| Mar | 37°F(3°C) | 37°F(3°C) | 19°F(-7°C) | 20°F(-7°C) | 2.5 in(63 mm) | 2.5 in(63 mm) |
| Apr | 52°F(11°C) | 52°F(11°C) | 33°F(1°C) | 33°F(1°C) | 3.1 in(78 mm) | 3.5 in(90 mm) |
| May | 67°F(19°C) | 67°F(19°C) | 46°F(8°C) | 46°F(8°C) | 3.4 in(87 mm) | 3.7 in(95 mm) |
| Jun | 76°F(25°C) | 76°F(24°C) | 56°F(13°C) | 55°F(13°C) | 3.6 in(92 mm) | 4.0 in(102 mm) |
| Jul | 81°F(27°C) | 81°F(27°C) | 60°F(16°C) | 60°F(16°C) | 3.8 in(96 mm) | 3.8 in(96 mm) |
| Aug | 79°F(26°C) | 79°F(26°C) | 59°F(15°C) | 59°F(15°C) | 3.6 in(92 mm) | 3.4 in(86 mm) |
| Sep | 72°F(22°C) | 72°F(22°C) | 51°F(11°C) | 51°F(11°C) | 3.2 in(82 mm) | 3.3 in(84 mm) |
| Oct | 57°F(14°C) | 58°F(14°C) | 40°F(5°C) | 40°F(5°C) | 3.5 in(89 mm) | 4.1 in(103 mm) |
| Nov | 43°F(6°C) | 45°F(7°C) | 29°F(-1°C) | 30°F(-1°C) | 3.0 in(75 mm) | 3.2 in(82 mm) |
| Dec | 29°F(-1°C) | 31°F(0°C) | 16°F(-9°C) | 17°F(-8°C) | 3.0 in(76 mm) | 3.0 in(75 mm) |
1991–2020 averages, by calendar month.