Coatesville
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Coatesville, PA

September, the first month of the autumn, in Coatesville, is still a warm month, with average temperature fluctuating between 78.8°F (26°C) and 53.6°F (12°C).

Temperature

In September, the average high-temperature drops, from a hot 89.6°F (32°C) in August, to a moderately hot 78.8°F (26°C). In September, in Coatesville, the average low-temperature is 53.6°F (12°C).

Rainfall

Throughout September, 3.7" (94mm) of precipitation is accumulated. During the entire year, Coatesville aggregates up to 45.8" (1164mm) of precipitation.

Daylight

The average length of the day in September is 12.4h.

What is the temperature in September in Coatesville?

In September, the average high-temperature is 78.8°F (26°C), and the average low-temperature is 53.6°F (12°C).

How much does it rain in Coatesville in September?

Throughout September, 3.7" (94mm) of precipitation is accumulated.

What is the average length of the day in September in Coatesville?

The average length of the day in September in Coatesville is 12.4h.
Average temperature in September - Coatesville, PA
  • Average high temperature in September: 78.8°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (51.8°F).

  • Average low temperature in September: 53.6°F

The month with the highest average low temperature is June (68°F).
The coldest month (with the lowest average low temperature) is December (24.8°F).

Average rainfall in September - Coatesville, PA
  • Average rainfall in September: 3.7"

Wettest months (with the highest rainfall) are June and August (4.5").
Driest months (with the lowest rainfall) are February, October and November (3.3").

Average daylight in September - Coatesville, PA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).