United States · 1991–2020 normal
Hahnville in
September.
Typical September weather in Hahnville: 31.2°C by day, 22.7°C at night, 130 mm of rain over 8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high31.2°C
Typical low22.7°C
Rain130 mm
Wet days8
Comfort score 45 this month (March leads the year at 77). Daylight is calculated as 12 h 18 from latitude 29.98°. Open-water sea temperature is 28.3°C (17 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 28.3°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 4326799
- NOAA station
- USW00012916 · NEW ORLEANS AP
- Station distance
- 12.8 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.