Visiting local bars in Silo is more fun in good weather. These rainfall averages and temperatures can help you decide the best time for bar hopping. The hottest months are usually August and July with an average temp of 69°F, while the coldest months are January and February with an average of 39°F. The rainiest months in Silo are November, December, September, and October, with each month seeing an average of 7 inches of rainfall.