United States · 1991–2020 normal

Norco in
September.

Typical September weather in Norco: 33.4°C by day, 14.7°C at night, 2 mm of rain over 0.3 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high33.4°C
Typical low14.7°C
Rain2 mm
Wet days0.3

Comfort score 69 this month (April leads the year at 87). Daylight is calculated as 12 h 21 from latitude 33.93°.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5377199
NOAA station
USW00003179 · CHINO AP
Station distance
8.6 km from the place centre
Coverage
Good coverage · 23 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.