Pioneers typically left for the Oregon Trail in the spring, most commonly in April and May. This timing was crucial for several reasons.
First, leaving in the spring allowed them to take advantage of the milder weather conditions. Winter snow could linger in the mountains, making certain passes impassable. By starting their journey in the spring, pioneers avoided the harsh winter conditions and were able to navigate the trail before the heat of summer set in.
Additionally, starting in the spring ensured that they would have enough grass for their livestock. The animals were essential for pulling wagons and carrying supplies, so it was important that there was plenty of forage available along the trail. Leaving too late might mean that the animals would struggle to find enough food, especially as they traversed the more arid regions.
Moreover, starting their journey in spring gave pioneers enough time to reach their destination before winter set in again. The journey to Oregon could take several months, and they needed to arrive before the onset of cold weather to ensure their survival and success in establishing a new life.