WeatherWX.com
Richland Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 57°F Lo 41°F | Hi 59°F Lo 43°F | Hi 68°F Lo 50°F | Hi 75°F Lo 56°F | Hi 82°F Lo 65°F | Hi 91°F Lo 73°F | Hi 95°F Lo 75°F | Hi 96°F Lo 76°F | Hi 89°F Lo 70°F | Hi 78°F Lo 60°F | Hi 66°F Lo 50°F | Hi 59°F Lo 44°F |
| 9 mph | 10 mph | 10 mph | 10 mph | 9 mph | 8 mph | 8 mph | 7 mph | 7 mph | 8 mph | 9 mph | 9 mph |
| 3 in | 3.2 in | 3.8 in | 5 in | 6 in | 3.4 in | 2.2 in | 2.5 in | 3.1 in | 5.1 in | 3.3 in | 3.5 in |
| 68% | 74% | 74% | 76% | 78% | 71% | 65% | 59% | 66% | 66% | 71% | 72% |
| 35% | 44% | 43% | 40% | 40% | 29% | 26% | 24% | 30% | 29% | 36% | 41% |
| 30.2 in | 30.1 in | 30.0 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 29.9 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 25 | 21 | 25 | 23 | 22 | 23 | 24 | 25 | 24 | 25 | 24 | 25 |
| 5 | 7 | 6 | 7 | 9 | 7 | 7 | 6 | 6 | 6 | 6 | 6 |
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | 3 | 4 | 5 | 6 | 6 | 7 | 7 | 6 | 4 | 4 | 3 |
| 219 | 165 | 173 | 175 | 175 | 218 | 257 | 278 | 225 | 238 | 202 | 191 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 14°C Lo 5°C | Hi 15°C Lo 6°C | Hi 20°C Lo 10°C | Hi 24°C Lo 13°C | Hi 28°C Lo 18°C | Hi 33°C Lo 23°C | Hi 35°C Lo 24°C | Hi 36°C Lo 25°C | Hi 32°C Lo 21°C | Hi 26°C Lo 15°C | Hi 19°C Lo 10°C | Hi 15°C Lo 7°C |
| 15 km/h | 16 km/h | 16 km/h | 16 km/h | 14 km/h | 13 km/h | 12 km/h | 12 km/h | 11 km/h | 13 km/h | 14 km/h | 14 km/h |
| 75 mm | 81 mm | 96 mm | 126 mm | 151 mm | 86 mm | 56 mm | 63 mm | 78 mm | 129 mm | 83 mm | 89 mm |
| 68% | 74% | 74% | 76% | 78% | 71% | 65% | 59% | 66% | 66% | 71% | 72% |
| 35% | 44% | 43% | 40% | 40% | 29% | 26% | 24% | 30% | 29% | 36% | 41% |
| 1021 mb | 1019 mb | 1017 mb | 1014 mb | 1014 mb | 1013 mb | 1014 mb | 1014 mb | 1015 mb | 1016 mb | 1020 mb | 1020 mb |
| 25 | 21 | 25 | 23 | 22 | 23 | 24 | 25 | 24 | 25 | 24 | 25 |
| 5 | 7 | 6 | 7 | 9 | 7 | 7 | 6 | 6 | 6 | 6 | 6 |
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | 3 | 4 | 5 | 6 | 6 | 7 | 7 | 6 | 4 | 4 | 3 |
| 219 | 165 | 173 | 175 | 175 | 218 | 257 | 278 | 225 | 238 | 202 | 191 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.