United States · 1991–2020 normal
Markham in
September.
Typical September weather in Markham: 31.6°C by day, 21.3°C at night, 146 mm of rain over 8.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high31.6°C
Typical low21.3°C
Rain146 mm
Wet days8.2
Comfort score 43 this month (March leads the year at 84). Daylight is calculated as 12 h 18 from latitude 28.96°. Open-water sea temperature is 29.1°C (42 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 4709193
- NOAA station
- USC00410569 · BAY CITY WTR WKS
- Station distance
- 9 km from the place centre
- Coverage
- Strong coverage · 28 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.