United States · 1991–2020 normal
Fairfax in
September.
Typical September weather in Fairfax: 29.7°C by day, 15.2°C at night, 95 mm of rain over 5.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high29.7°C
Typical low15.2°C
Rain95 mm
Wet days5.6
Comfort score 70 this month (October leads the year at 79). Daylight is calculated as 12 h 22 from latitude 36.57°.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4536099
- NOAA station
- USC00347390 · RALSTON
- Station distance
- 8.5 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.