Winds can reach 100 mph. All those old volcanoes could have supplied enough carbon dioxide and water to enable the greenhouse effect to get running, making Mars warm enough to have liquid water. If Mars lost the carbon dioxide, lose greenhouse effect, water freezes or evaporates. Much to learn about it, more missions planned. 0.72 A.U. Orbital period of 225 days.
Density is just slightly less than Earth's.
Sulfur must be getting replenished so volcanoes are still active at times. Magellan used radar mapping to probe surface in spite of clouds. Some evidence for recent lava flows. Fractures on crust suggest active tectonics. But not large multiple plates like Earth.