United States · 1991–2020 normal
Keystone in
September.
Typical September weather in Keystone: 31.9°C by day, 22.9°C at night, 181 mm of rain over 10.9 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high31.9°C
Typical low22.9°C
Rain181 mm
Wet days10.9
Comfort score 32 this month (November leads the year at 93). Daylight is calculated as 12 h 17 from latitude 28.16°. Open-water sea temperature is 29.1°C (25 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 29.1°C in September. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4160822
- NOAA station
- USC00088824 · TARPON SPGS SEWAGE PLT
- Station distance
- 13 km from the place centre
- Coverage
- Strong coverage · 29 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.