WeatherWX.com
Richardson Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 60°F Lo 43°F | Hi 65°F Lo 48°F | Hi 72°F Lo 54°F | Hi 77°F Lo 59°F | Hi 84°F Lo 66°F | Hi 90°F Lo 73°F | Hi 90°F Lo 75°F | Hi 90°F Lo 75°F | Hi 87°F Lo 71°F | Hi 80°F Lo 61°F | Hi 69°F Lo 51°F | Hi 63°F Lo 48°F |
| 6 mph | 6 mph | 6 mph | 7 mph | 6 mph | 5 mph | 4 mph | 4 mph | 5 mph | 5 mph | 6 mph | 6 mph |
| 4.4 in | 5.5 in | 5.3 in | 5.7 in | 6.5 in | 7 in | 8.5 in | 10.3 in | 6.1 in | 3.9 in | 3.3 in | 5.7 in |
| 76% | 78% | 76% | 74% | 74% | 74% | 76% | 75% | 76% | 71% | 74% | 80% |
| 40% | 48% | 44% | 39% | 35% | 37% | 40% | 38% | 34% | 28% | 34% | 48% |
| 30.2 in | 30.1 in | 30.1 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 24 | 20 | 23 | 22 | 20 | 14 | 10 | 10 | 16 | 25 | 25 | 23 |
| 7 | 8 | 8 | 8 | 11 | 16 | 21 | 21 | 14 | 6 | 5 | 8 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 4 | 4 |
| 191 | 144 | 174 | 193 | 217 | 186 | 160 | 177 | 201 | 243 | 217 | 158 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 16°C Lo 6°C | Hi 18°C Lo 9°C | Hi 22°C Lo 12°C | Hi 25°C Lo 15°C | Hi 29°C Lo 19°C | Hi 32°C Lo 23°C | Hi 32°C Lo 24°C | Hi 32°C Lo 24°C | Hi 30°C Lo 21°C | Hi 26°C Lo 16°C | Hi 21°C Lo 11°C | Hi 17°C Lo 9°C |
| 10 km/h | 10 km/h | 10 km/h | 11 km/h | 9 km/h | 8 km/h | 7 km/h | 7 km/h | 8 km/h | 9 km/h | 9 km/h | 10 km/h |
| 111 mm | 141 mm | 135 mm | 145 mm | 164 mm | 177 mm | 216 mm | 260 mm | 154 mm | 99 mm | 84 mm | 144 mm |
| 76% | 78% | 76% | 74% | 74% | 74% | 76% | 75% | 76% | 71% | 74% | 80% |
| 40% | 48% | 44% | 39% | 35% | 37% | 40% | 38% | 34% | 28% | 34% | 48% |
| 1021 mb | 1020 mb | 1019 mb | 1016 mb | 1016 mb | 1014 mb | 1016 mb | 1015 mb | 1015 mb | 1017 mb | 1020 mb | 1020 mb |
| 24 | 20 | 23 | 22 | 20 | 14 | 10 | 10 | 16 | 25 | 25 | 23 |
| 7 | 8 | 8 | 8 | 11 | 16 | 21 | 21 | 14 | 6 | 5 | 8 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 5 | 4 | 4 |
| 191 | 144 | 174 | 193 | 217 | 186 | 160 | 177 | 201 | 243 | 217 | 158 |
| 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.