If you're looking forward to lots of outings with your partner, check out these details about year-round temperatures in Rudrapur: The hottest months are usually May and June with an average temp of 88°F, while the coldest months are January and December with an average of 64°F. The rainiest months in Rudrapur are July, August, September, and June, with each month seeing an average of 12 inches of rainfall.