Dumas Seasonal temperature break down - The average median temperature March through May is approximately 63°F with highs averaging at 74°F and lows averaging at 54°F. June through August has an approximate average median temperature of 80°F with highs averaging at 91°F, lows typically average at 71°F. Average median temperatures September through November average out at 65°F, high temperatures average out at 78°F and lows average at 55°F.
The average median temperature December through February is approximately 48°F with highs averaging at 58°F, lows average out at 40°F.
The average Dumas annual median temperature averages out at approximately 64°F. The coldest month in Dumas is January with a median temperature of 45°F, the average high for the month of January is 54°F with an average low of 37°F. The hottest month in Dumas is August with an approximate median temperature of 82°F, the average high for the month of August is 94°F with an average low of 73°F.