Ontario receives approximately 906mm of rain per year, with humidity levels near 81% and air temperatures averaging around 8°C. Ontario has a plant hardyness factor of 4, meaning plants and agriculture in this region thrive during a short period during spring and early summer. Most plants will die off during the colder winter months.
Camping Area | Reservations | Toilets | Showers |
---|---|---|---|
Sulphur Springs - Lake Wappapello | |||
Percy Quin State Park | |||
Greenville - Lake Wappapello | |||
St. Peters 370 Lakeside Park | |||
St. Francois State Park | |||
Tickfaw State Park |