Tulsa vs O'Fallon, Missouri Climate
84%matchTulsa and O'Fallon are a 84% climate match. Compared with Tulsa, O'Fallon has 5°F (3°C) colder winter nights, 4°F (2°C) cooler summer days and less sun.
Tulsa gets 39 in (996 mm) of rain a year and O'Fallon 39 in (998 mm). July is the warmest month in both, with highs of 94°F (35°C) in Tulsa 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)
TulsaO'Fallonsolid = high, dashed = low
Rain (in per month)
TulsaO'Fallon
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Tulsa | O'Fallon | Tulsa | O'Fallon | Tulsa | O'Fallon | |
| Jan | 50°F(10°C) | 40°F(5°C) | 27°F(-3°C) | 22°F(-6°C) | 1.7 in(42 mm) | 2.0 in(50 mm) |
| Feb | 55°F(13°C) | 46°F(8°C) | 31°F(0°C) | 25°F(-4°C) | 1.8 in(46 mm) | 2.0 in(52 mm) |
| Mar | 64°F(18°C) | 57°F(14°C) | 40°F(4°C) | 34°F(1°C) | 3.0 in(77 mm) | 3.2 in(81 mm) |
| Apr | 74°F(23°C) | 69°F(20°C) | 49°F(9°C) | 44°F(7°C) | 3.8 in(96 mm) | 3.9 in(98 mm) |
| May | 81°F(27°C) | 78°F(26°C) | 59°F(15°C) | 55°F(13°C) | 5.2 in(133 mm) | 4.8 in(121 mm) |
| Jun | 89°F(32°C) | 86°F(30°C) | 68°F(20°C) | 64°F(18°C) | 4.5 in(114 mm) | 3.7 in(95 mm) |
| Jul | 94°F(35°C) | 90°F(32°C) | 73°F(23°C) | 68°F(20°C) | 4.1 in(105 mm) | 4.3 in(108 mm) |
| Aug | 94°F(35°C) | 89°F(32°C) | 71°F(21°C) | 66°F(19°C) | 3.3 in(84 mm) | 3.3 in(84 mm) |
| Sep | 86°F(30°C) | 82°F(28°C) | 62°F(17°C) | 57°F(14°C) | 4.1 in(104 mm) | 3.5 in(88 mm) |
| Oct | 76°F(24°C) | 70°F(21°C) | 50°F(10°C) | 45°F(7°C) | 3.1 in(80 mm) | 3.1 in(80 mm) |
| Nov | 62°F(17°C) | 56°F(13°C) | 39°F(4°C) | 35°F(2°C) | 2.6 in(65 mm) | 3.1 in(79 mm) |
| Dec | 51°F(11°C) | 44°F(7°C) | 30°F(-1°C) | 26°F(-3°C) | 2.0 in(50 mm) | 2.4 in(62 mm) |
1991–2020 averages, by calendar month.