United States · 1991–2020 normal
Hayward in
December.
Typical December weather in Hayward: -1.8°C by day, -11.5°C at night, 32 mm of rain over 6.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-1.8°C
Typical low-11.5°C
Rain32 mm
Wet days6.6
Comfort score 5 this month (August leads the year at 73). Daylight is calculated as 8 h 39 from latitude 46.01°.
Event window
Frost-level nights in December
The measured night-time normal is -11.5°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5255882
- NOAA station
- USC00473511 · HAYWARD RS
- Station distance
- 2.3 km from the place centre
- Coverage
- Good coverage · 24 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.