United States · 1991–2020 normal
Johnston in
September.
Typical September weather in Johnston: 29.7°C by day, 16.1°C at night, 107 mm of rain over 6.8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high29.7°C
Typical low16.1°C
Rain107 mm
Wet days6.8
Comfort score 66 this month (October leads the year at 81). Daylight is calculated as 12 h 20 from latitude 33.83°.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4583636
- NOAA station
- USC00384607 · JOHNSTON 4 SW
- Station distance
- 7.4 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.