Clarksville, Tennessee vs O'Fallon, Missouri Climate
91%matchOn climate, O'Fallon is a 91% match for Clarksville. Compared with Clarksville, O'Fallon has the same summer highs, half the winter rain and 5°F (3°C) colder winter nights.
Clarksville gets 52 in (1314 mm) of rain a year and O'Fallon 39 in (998 mm). July is the warmest month in both, with highs of 90°F (32°C) in Clarksville and 90°F (32°C) in O'Fallon.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
ClarksvilleO'Fallonsolid = high, dashed = low
Rain (in per month)
ClarksvilleO'Fallon
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Clarksville | O'Fallon | Clarksville | O'Fallon | Clarksville | O'Fallon | |
| Jan | 47°F(8°C) | 40°F(5°C) | 27°F(-3°C) | 22°F(-6°C) | 4.1 in(105 mm) | 2.0 in(50 mm) |
| Feb | 52°F(11°C) | 46°F(8°C) | 30°F(-1°C) | 25°F(-4°C) | 4.7 in(119 mm) | 2.0 in(52 mm) |
| Mar | 61°F(16°C) | 57°F(14°C) | 38°F(3°C) | 34°F(1°C) | 5.1 in(130 mm) | 3.2 in(81 mm) |
| Apr | 72°F(22°C) | 69°F(20°C) | 46°F(8°C) | 44°F(7°C) | 4.8 in(122 mm) | 3.9 in(98 mm) |
| May | 79°F(26°C) | 78°F(26°C) | 55°F(13°C) | 55°F(13°C) | 4.8 in(123 mm) | 4.8 in(121 mm) |
| Jun | 87°F(31°C) | 86°F(30°C) | 64°F(18°C) | 64°F(18°C) | 4.0 in(102 mm) | 3.7 in(95 mm) |
| Jul | 90°F(32°C) | 90°F(32°C) | 68°F(20°C) | 68°F(20°C) | 4.2 in(106 mm) | 4.3 in(108 mm) |
| Aug | 90°F(32°C) | 89°F(32°C) | 66°F(19°C) | 66°F(19°C) | 3.7 in(94 mm) | 3.3 in(84 mm) |
| Sep | 84°F(29°C) | 82°F(28°C) | 60°F(15°C) | 57°F(14°C) | 3.4 in(87 mm) | 3.5 in(88 mm) |
| Oct | 73°F(23°C) | 70°F(21°C) | 47°F(9°C) | 45°F(7°C) | 3.9 in(98 mm) | 3.1 in(80 mm) |
| Nov | 61°F(16°C) | 56°F(13°C) | 37°F(3°C) | 35°F(2°C) | 4.0 in(102 mm) | 3.1 in(79 mm) |
| Dec | 51°F(10°C) | 44°F(7°C) | 30°F(-1°C) | 26°F(-3°C) | 5.0 in(126 mm) | 2.4 in(62 mm) |
1991–2020 averages, by calendar month.