WeatherWX.comCucamonga Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 67°F Lo 49°F | Hi 66°F Lo 49°F | Hi 69°F Lo 51°F | Hi 72°F Lo 54°F | Hi 75°F Lo 58°F | Hi 83°F Lo 65°F | Hi 88°F Lo 70°F | Hi 89°F Lo 71°F | Hi 88°F Lo 70°F | Hi 80°F Lo 62°F | Hi 72°F Lo 54°F | Hi 64°F Lo 48°F |
| 5 mph | 5 mph | 5 mph | 6 mph | 6 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph | 5 mph |
| 2.3 in | 2.5 in | 1.4 in | 0.9 in | 0.3 in | 0 in | 0.4 in | 0.2 in | 0.2 in | 0.4 in | 0.9 in | 2.9 in |
| 44% | 49% | 52% | 51% | 53% | 48% | 44% | 42% | 43% | 44% | 42% | 47% |
| 20% | 20% | 21% | 17% | 14% | 6% | 6% | 5% | 5% | 10% | 13% | 22% |
| 30.1 in | 30.0 in | 30.0 in | 29.9 in | 29.9 in | 29.8 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.1 in |
| 29 | 26 | 29 | 29 | 31 | 30 | 31 | 31 | 30 | 30 | 29 | 28 |
| 2 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 |
| 4 | 4 | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 5 | 4 | 4 |
| 346 | 314 | 350 | 344 | 361 | 358 | 371 | 371 | 358 | 363 | 349 | 339 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 19°C Lo 9°C | Hi 19°C Lo 9°C | Hi 20°C Lo 10°C | Hi 22°C Lo 12°C | Hi 24°C Lo 14°C | Hi 28°C Lo 18°C | Hi 31°C Lo 21°C | Hi 32°C Lo 22°C | Hi 31°C Lo 21°C | Hi 26°C Lo 17°C | Hi 22°C Lo 12°C | Hi 18°C Lo 9°C |
| 8 km/h | 8 km/h | 8 km/h | 9 km/h | 9 km/h | 9 km/h | 8 km/h | 8 km/h | 7 km/h | 7 km/h | 8 km/h | 8 km/h |
| 57 mm | 63 mm | 36 mm | 22 mm | 7 mm | 1 mm | 10 mm | 6 mm | 5 mm | 10 mm | 22 mm | 72 mm |
| 44% | 49% | 52% | 51% | 53% | 48% | 44% | 42% | 43% | 44% | 42% | 47% |
| 20% | 20% | 21% | 17% | 14% | 6% | 6% | 5% | 5% | 10% | 13% | 22% |
| 1019 mb | 1017 mb | 1016 mb | 1014 mb | 1012 mb | 1011 mb | 1012 mb | 1012 mb | 1012 mb | 1014 mb | 1017 mb | 1018 mb |
| 29 | 26 | 29 | 29 | 31 | 30 | 31 | 31 | 30 | 30 | 29 | 28 |
| 2 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 |
| 4 | 4 | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 5 | 4 | 4 |
| 346 | 314 | 350 | 344 | 361 | 358 | 371 | 371 | 358 | 363 | 349 | 339 |
| 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.
