If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Toro Amarillo: The hottest months are usually March and April with an average temp of 71°F, while the coldest months are January and February with an average of 70°F. The rainiest months in Toro Amarillo are October, June, September, and August, with each month seeing an average of 20 inches of rainfall.