Montclair, Sunday, 9 August, 00:58
Clear. Feels like 76°. High 100°, low 71°.
In January, Montclair, CA averages a high of 62.8° and a low of 43.3°. About 3.6 inches of precipitation fall over the month (6 wet days). The record high is 86.9° (2003) and the record low 25.7° (1963). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 61.2° | 41.2° | 10% | 80.2° (1964) | 30° (2015) |
| 2 | 61.5° | 41.9° | 15% | 80.6° (2012) | 29.5° (1960) |
| 3 | 61.2° | 42.3° | 20% | 81.1° (2012) | 29.1° (1960) |
| 4 | 60.8° | 41.7° | 18% | 83.3° (2012) | 27.9° (1972) |
| 5 | 61.3° | 42.8° | 32% | 81.3° (2012) | 28.8° (1971) |
| 6 | 61.9° | 43.2° | 20% | 77.5° (1969) | 30.4° (1971) |
| 7 | 62.1° | 43° | 23% | 78.6° (1962) | 29.3° (1971) |
| 8 | 62.4° | 42.6° | 15% | 77.5° (1962) | 30° (1989) |
| 9 | 62.1° | 43.9° | 25% | 79.9° (1990) | 32.5° (1989) |
| 10 | 62.8° | 43.7° | 22% | 79.7° (1990) | 33.8° (1971) |
| 11 | 63.3° | 43.7° | 13% | 77.2° (1986) | 32° (1962) |
| 12 | 63.1° | 43.3° | 17% | 78.1° (1996) | 31.1° (2013) |
| 13 | 64.8° | 43.7° | 15% | 76.8° (2018) | 25.7° (1963) |
| 14 | 64.9° | 44.4° | 18% | 84.9° (2021) | 28.6° (2007) |
| 15 | 64.2° | 44.8° | 22% | 85.6° (2021) | 30.7° (2007) |
| 16 | 63.5° | 45.1° | 23% | 86.2° (2021) | 29.7° (1987) |
| 17 | 64° | 44.6° | 22% | 83.7° (1976) | 30.2° (1987) |
| 18 | 64.9° | 43.7° | 18% | 81.3° (2014) | 32.4° (1987) |
| 19 | 63.5° | 44.4° | 18% | 80.8° (1971) | 32.4° (1980) |
| 20 | 62.8° | 43.9° | 20% | 79.9° (2014) | 31.6° (1988) |
| 21 | 62.4° | 43.5° | 18% | 77.7° (2014) | 32° (1966) |
| 22 | 62.6° | 42.6° | 17% | 79.3° (2025) | 31.5° (1982) |
| 23 | 62.8° | 43.2° | 20% | 76.8° (2013) | 32.2° (1996) |
| 24 | 63.7° | 43.5° | 15% | 77.2° (1992) | 32° (1962) |
| 25 | 63.7° | 43.9° | 27% | 79.3° (2015) | 28.2° (1962) |
| 26 | 62.6° | 43.7° | 22% | 79.2° (2003) | 31.6° (1979) |
| 27 | 62.2° | 43.3° | 17% | 79° (1986) | 31.3° (1979) |
| 28 | 63.1° | 42.8° | 22% | 79.7° (2018) | 33.3° (2013) |
| 29 | 63.5° | 42.4° | 12% | 83.8° (2018) | 26.8° (1979) |
| 30 | 62.2° | 42.8° | 23% | 81.3° (2003) | 30.6° (1969) |
| 31 | 62.6° | 42.8° | 27% | 86.9° (2003) | 30.9° (2002) |