Month | Temp. (min) | Temp. (max) | Temp. (avg) | Precipitation |
January | 38°F | 61°F | 48°F | 2.8" |
February | 42°F | 65°F | 52°F | 1.7" |
March | 50°F | 72°F | 60°F | 5.1" |
April | 57°F | 79°F | 67°F | 3.9" |
May | 64°F | 85°F | 74°F | 4.8" |
June | 72°F | 93°F | 82°F | 4.1" |
July | 75°F | 96°F | 84°F | 2.0" |
August | 75°F | 98°F | 85°F | 2.5" |
September | 69°F | 91°F | 79°F | 2.5" |
October | 58°F | 82°F | 68°F | 4.4" |
November | 49°F | 70°F | 58°F | 3.0" |
December | 41°F | 61°F | 50°F | 2.6" |
Index | Richland | Texas | National |
Air quality index | 41 | 52 | 42 |
Pollution index | 1,309,490 | 2,009,300 | 2,726,193 |
Measurement | Total |
Days measured | 365 |
Days with good air quality | 275 |
Days with moderate air quality | 80 |
Days w/ poor A.Q. for sensitive groups | 7 |
Days with unhealthy air quality | 3 |
Pollutant | Total |
Arsenic | 0.430% |
Benzene | 0.010% |
Carbon Tetrachloride | 0.001% |
Lead | 0.010% |
Mercury | 0.390% |
City | Population | Air Quality Index | National Avg. |
Kirvin, TX | 167 | 41 | 18.0% |
Corsicana, TX | 23,736 | 41 | 18.0% |
Angus, TX | 383 | 41 | 18.0% |
Navarro, TX | 168 | 41 | 18.0% |
Tehuacana, TX | 188 | 41 | 18.0% |
Richland, TX | 275 | 41 | 18.0% |
City | Population | Air Quality Index | National Avg. |
Ambler, AK | 275 | 38 | 24.0% |
Huslia, AK | 275 | 38 | 24.0% |
Mount Olive CDP (Coosa County), AL | 275 | 53 | 6.0% |
Oconee, GA | 275 | 38 | 24.0% |
Kimballton, IA | 275 | 40 | 20.0% |
Richland, TX | 275 | 41 | 18.0% |