Karlovac vs O'Fallon, Illinois Climate
83%matchOn climate, O'Fallon is a 83% match for Karlovac. Compared with Karlovac, O'Fallon has more sun, 4°F (2°C) hotter summer days and 4°F (2°C) colder winter nights.
Karlovac gets 42 in (1060 mm) of rain a year and O'Fallon 40 in (1027 mm). July is the warmest month in both, with highs of 84°F (29°C) in Karlovac and 88°F (31°C) in O'Fallon.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
KarlovacO'Fallonsolid = high, dashed = low
Rain (in per month)
KarlovacO'Fallon
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Karlovac | O'Fallon | Karlovac | O'Fallon | Karlovac | O'Fallon | |
| Jan | 42°F(5°C) | 39°F(4°C) | 28°F(-2°C) | 23°F(-5°C) | 2.6 in(65 mm) | 2.4 in(60 mm) |
| Feb | 46°F(8°C) | 45°F(7°C) | 30°F(-1°C) | 26°F(-3°C) | 2.5 in(63 mm) | 2.4 in(61 mm) |
| Mar | 56°F(13°C) | 56°F(13°C) | 36°F(2°C) | 35°F(2°C) | 2.6 in(65 mm) | 3.3 in(84 mm) |
| Apr | 65°F(18°C) | 67°F(20°C) | 44°F(7°C) | 45°F(7°C) | 2.9 in(74 mm) | 4.0 in(101 mm) |
| May | 73°F(23°C) | 77°F(25°C) | 51°F(11°C) | 56°F(13°C) | 3.7 in(95 mm) | 4.9 in(124 mm) |
| Jun | 80°F(27°C) | 85°F(30°C) | 58°F(15°C) | 65°F(18°C) | 3.6 in(91 mm) | 4.2 in(106 mm) |
| Jul | 84°F(29°C) | 88°F(31°C) | 60°F(16°C) | 68°F(20°C) | 3.6 in(91 mm) | 3.8 in(96 mm) |
| Aug | 83°F(29°C) | 87°F(31°C) | 60°F(16°C) | 66°F(19°C) | 3.6 in(92 mm) | 3.3 in(83 mm) |
| Sep | 73°F(23°C) | 81°F(27°C) | 53°F(12°C) | 58°F(14°C) | 4.9 in(124 mm) | 3.7 in(94 mm) |
| Oct | 63°F(17°C) | 69°F(21°C) | 46°F(8°C) | 46°F(8°C) | 4.3 in(108 mm) | 2.8 in(72 mm) |
| Nov | 52°F(11°C) | 55°F(13°C) | 39°F(4°C) | 36°F(2°C) | 4.3 in(109 mm) | 3.0 in(77 mm) |
| Dec | 43°F(6°C) | 44°F(7°C) | 30°F(-1°C) | 27°F(-3°C) | 3.3 in(83 mm) | 2.7 in(69 mm) |
1991–2020 averages, by calendar month.