United States · 1991–2020 normal

Boulder Creek in
September.

Typical September weather in Boulder Creek: 30.6°C by day, 9.1°C at night, 3 mm of rain over 0.5 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high30.6°C
Typical low9.1°C
Rain3 mm
Wet days0.5

Comfort score 68 this month (May leads the year at 82). Daylight is calculated as 12 h 22 from latitude 37.13°. Open-water sea temperature is 14.9°C (22 km from the place centre).

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5330222
NOAA station
USC00040673 · BEN LOMOND #4
Station distance
5.6 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.