United States · 1991–2020 normal
Fullerton in
January.
Typical January weather in Fullerton: 1.9°C by day, -10.4°C at night, 17 mm of rain over 3.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high1.9°C
Typical low-10.4°C
Rain17 mm
Wet days3.6
Comfort score 5 this month (September leads the year at 80). Daylight is calculated as 9 h 29 from latitude 41.36°.
Event window
Frost-level nights in January
The measured night-time normal is -10.4°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5068818
- NOAA station
- USC00253185 · GENOA 2 W
- Station distance
- 19.7 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.