Weather in September
September ushers in the early stages of autumn, reflecting subtle changes in the weather profile of
Black Rock Mountain State Park. The average high temperature drops to 71.7°F (22.1°C), the average low to 55.2°F (12.9°C), while rainfall increases slightly to 6.1" (155mm). Transitioning from duress of
August, September brings a mild dip in temperatures, acknowledging the seasonal change. Daylight hours also reduce to 12.4, yet remain ample for engaging park activities.
October presents cooler weather with a slight drop in rainfall.
Temperature
With the onset of September, Black Rock Mountain State Park's average high-temperature clocks in at an agreeable 71.8°F (22.1°C), showing a minor fluctuation from the previous month. In Black Rock Mountain State Park, in September, the average low-temperature is a fresh 55.2°F (12.9°C).
Rainfall
Throughout September, in Black Rock Mountain State Park, 6.14" (156mm) of precipitation is accumulated. Throughout the year, in Black Rock Mountain State Park, 68.62" (1743mm) of rain is accumulated.
Daylight
The average length of the day in September is 12h and 23min.
On the first day of September in Black Rock Mountain State Park, sunrise is at 7:06 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:18 pm EDT.
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