United States · 1991–2020 normal
Alum Rock in
September.
Typical September weather in Alum Rock: 27.1°C by day, 14.1°C at night, 2 mm of rain over 0.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high27.1°C
Typical low14.1°C
Rain2 mm
Wet days0.3
Comfort score 88 this month (October leads the year at 93). Daylight is calculated as 12 h 23 from latitude 37.37°.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5323566
- NOAA station
- USW00023293 · SAN JOSE
- 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.