Golf courses see a surge in activity, and pool parties transition from a necessity to a leisure activity. Early in the month, highs typically hover around 100°F (38°C), but by late September, they often fall into the mid-90s°F (35°C) or lower.
Embracing Phoenix September Outdoor Lifestyle Shifts
However, these storms necessitate awareness. It is crucial to avoid driving through flooded roadways and to stay informed about weather alerts.
Overnight lows provide significant relief, frequently dropping into the comfortable 70s°F (21-24°C). The table below illustrates the typical progression of temperature averages throughout the month: Metric Early September Late September Average High 100°F (38°C) 94°F (34°C) Average Low 78°F (26°C) 72°F (22°C) Record High 115°F (46°C) 108°F (42°C) Precipitation and Monsoon Influence September remains within the tail end of the North American Monsoon season, which typically concludes in early October.
Embracing Phoenix September Outdoor Lifestyle Shifts
Flash flooding in normally dry washes (arroyos) poses a significant risk. The average rainfall for the month is modest, usually around half an inch, but variability is high.
More About Phoenix weather september
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