Smithville Seasonal temperature break down - The average median temperature March through May is approximately 48°F with highs averaging at 57°F and lows averaging at 41°F. June through August has an approximate average median temperature of 61°F with highs averaging at 70°F, lows typically average at 52°F. Average median temperatures September through November average out at 53°F, high temperatures average out at 62°F and lows average at 45°F.
The average median temperature December through February is approximately 35°F with highs averaging at 44°F, lows average out at 29°F.
The average Smithville annual median temperature averages out at approximately 49°F. The coldest month in Smithville is January with a median temperature of 33°F, the average high for the month of January is 40°F with an average low of 26°F. The hottest month in Smithville is July with an approximate median temperature of 64°F, the average high for the month of July is 73°F with an average low of 55°F.