If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Warnick: The hottest months are usually August and July with an average temp of 58°F, while the coldest months are December and February with an average of 33°F. The rainiest months in Warnick are November, January, December, and March, with each month seeing an average of 12 inches of rainfall.