Rancho Cucamonga, Sunday, 9 August, 09:33
Clear. Feels like 85°. High 99°, low 69°.
In April, Rancho Cucamonga, CA averages a high of 70.7° and a low of 48.5°. About 1.4 inches of precipitation fall over the month (5 wet days). The record high is 98.4° (1989) and the record low 30.9° (1999). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 66.9° | 47.1° | 32% | 89.4° (1966) | 37.8° (1998) |
| 2 | 67.1° | 46° | 28% | 86.5° (1961) | 30.9° (1999) |
| 3 | 67.8° | 46° | 18% | 93.4° (1961) | 36.3° (1967) |
| 4 | 68.5° | 46.6° | 25% | 90.7° (1989) | 36.5° (1999) |
| 5 | 68.5° | 47.1° | 22% | 95.5° (1989) | 35.4° (1999) |
| 6 | 68.9° | 47.5° | 17% | 98.4° (1989) | 35.4° (2024) |
| 7 | 69.8° | 47.7° | 17% | 98.1° (1989) | 36.7° (1975) |
| 8 | 69.6° | 47.7° | 20% | 92.3° (2022) | 36.7° (1967) |
| 9 | 70.7° | 48° | 15% | 88.9° (2018) | 34° (1999) |
| 10 | 71.6° | 48.4° | 10% | 89.2° (1988) | 34.3° (1999) |
| 11 | 70.7° | 49.1° | 17% | 88.3° (1988) | 36.9° (1965) |
| 12 | 70.5° | 48.4° | 15% | 88.5° (1990) | 34.7° (1967) |
| 13 | 70.7° | 48° | 17% | 93.9° (1985) | 38.8° (1983) |
| 14 | 70° | 47.8° | 23% | 91.4° (1984) | 37.9° (1983) |
| 15 | 70.2° | 47.8° | 20% | 91.9° (1987) | 39.2° (2012) |
| 16 | 69.8° | 48.2° | 17% | 89.1° (1987) | 36° (1998) |
| 17 | 69.3° | 48° | 25% | 86.2° (1980) | 35.4° (1976) |
| 18 | 69.1° | 48.7° | 25% | 86.5° (2016) | 37.4° (1968) |
| 19 | 71.1° | 48.2° | 17% | 90.5° (2009) | 36.5° (1967) |
| 20 | 72° | 48.6° | 12% | 94.8° (2009) | 37.4° (1967) |
| 21 | 71.8° | 49.5° | 22% | 93.7° (2009) | 39.6° (1963) |
| 22 | 70.9° | 49.5° | 20% | 90.5° (1987) | 37° (1963) |
| 23 | 71.6° | 49.3° | 10% | 87.6° (1984) | 38.1° (1967) |
| 24 | 71.6° | 49.3° | 15% | 90.5° (2020) | 39.4° (1970) |
| 25 | 72.7° | 49.8° | 17% | 90.3° (1996) | 39.6° (1960) |
| 26 | 73.2° | 50° | 17% | 94.3° (2004) | 39.2° (1964) |
| 27 | 73.8° | 50.4° | 12% | 94.5° (2004) | 38.7° (1971) |
| 28 | 73.4° | 50.7° | 15% | 91.2° (2008) | 39.7° (1970) |
| 29 | 74.3° | 50.9° | 5% | 95.4° (1981) | 35.8° (1970) |
| 30 | 74.1° | 51.3° | 12% | 92.5° (1996) | 38.5° (1970) |