Monthly Averages for Quitman, TX (75783)   Average Temperature (°F) High   Low   Minimum Period of Record: 30 years Month Avg. High Avg. Low Mean Avg. Precip. Jan 50°F 31°F 40°F 2.89 in. Feb 55°F 35°F 45°F 3.03 in. Mar 63°F 43°F 53°F 3.07 in. Apr 70°F 50°F 60°F 3.53 in. May 78°F 60°F 69°F 5.29 in. Jun 86°F 67°F 77°F 2.78 in. Jul 90°F 71°F 81°F 1.81 in. Aug 90°F 70°F 80°F 2.44 in. Sep 84°F 64°F 74°F 3.05 in. Oct 74°F 52°F 63°F 4.38 in. Nov 61°F 42°F 52°F 4.49 in. Dec 52°F 34°F 43°F 4.20 in.