January weather in San Fernando, CA
The average temperature in San Fernando in January is °F (°F–°F). Average precipitation: 4.09 inches.
January is a winter month in San Fernando, and is cooler than the annual average of 0°F. Expect about 7 days with precipitation. Daylight averages about 9h 57m.
Avg High
°F
Avg Low
°F
Precipitation
4.09 in
Daylight
9h 57m
January records in San Fernando
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 71.1°F (2024) | 45.0°F (2024) | 1.61 in (2023) |
| January 2 | 73.0°F (2025) | 43.0°F (2024) | 1.66 in (1997) |
| January 3 | 80.1°F (2025) | 46.0°F (2024) | 1.82 in (1977) |
| January 4 | 72.0°F (2025) | 45.0°F (2025) | 0.94 in (2008) |
| January 5 | 70.0°F (2025) | 44.1°F (2025) | 2.41 in (1995) |
| January 6 | 73.0°F (2025) | 46.0°F (2025) | 2.85 in (1959) |
| January 7 | 80.1°F (2025) | 45.0°F (2024) | 2.33 in (1977) |
| January 8 | 66.9°F (2025) | 43.0°F (2024) | 2.23 in (1974) |
| January 9 | 69.1°F (2025) | 42.1°F (2024) | 2.55 in (2005) |
| January 10 | 75.0°F (2025) | 42.1°F (2024) | 3.55 in (2005) |
| January 11 | 68.0°F (2025) | 39.9°F (2024) | 1.97 in (2005) |
| January 12 | 69.1°F (2025) | 42.1°F (2024) | 1.18 in (1997) |
| January 13 | 73.9°F (2026) | 39.9°F (2024) | 2.25 in (1957) |
| January 14 | 80.1°F (2026) | 39.9°F (2024) | 2.80 in (1993) |
| January 15 | 82.9°F (2026) | 42.1°F (2024) | 1.90 in (1978) |
| January 16 | 82.0°F (2026) | 45.0°F (2024) | 3.93 in (1952) |
| January 17 | 81.0°F (2026) | 41.0°F (2025) | 1.71 in (1973) |
| January 18 | 79.0°F (2026) | 42.1°F (2025) | 3.33 in (1952) |
| January 19 | 73.0°F (2026) | 43.0°F (2025) | 2.05 in (1954) |
| January 20 | 77.0°F (2026) | 39.9°F (2025) | 1.97 in (1962) |
| January 21 | 80.1°F (2026) | 42.1°F (2024) | 3.00 in (1969) |
| January 22 | 70.0°F (2026) | 41.0°F (2025) | 3.48 in (1967) |
| January 23 | 75.0°F (2025) | 45.0°F (2025) | 2.25 in (1983) |
| January 24 | 73.0°F (2025) | 46.0°F (2024) | 2.18 in (1967) |
| January 25 | 68.0°F (2025) | 45.0°F (2026) | 1.65 in (1997) |
| January 26 | 69.1°F (2024) | 39.9°F (2025) | 4.77 in (1956) |
| January 27 | 73.0°F (2024) | 37.9°F (2025) | 1.14 in (2008) |
| January 28 | 75.9°F (2024) | 39.0°F (2025) | 1.27 in (1981) |
| January 29 | 80.1°F (2024) | 39.9°F (2025) | 2.84 in (1980) |
| January 30 | 84.0°F (2024) | 39.9°F (2025) | 1.63 in (1986) |
| January 31 | 81.0°F (2024) | 42.1°F (2025) | 2.10 in (1996) |