Montrose Weather in September

What's the weather like in Montrose (Pennsylvania) in September 2025?

The climate in Montrose during September can be summarized as warm and damp.

September is in the fall / autumn in Montrose and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 12°C (53°F) is normal.

Montrose weather averages (imperial / metric)
Daytime temperature 24.8°C 76.6°F
Nightly temperature 11.8°C 53.2°F
Average temperature 18.3°C 64.9°F
Daily sunshine 7.8 hrs
Avg rainfall 102 mm 4 ins
Rainy days 9 days
Sea temperature 21°C 69.9°F
Humidity 74%
Windspeed 12.6kph 8 mph

On average September is the 4th wettest month of the year in Montrose with around 102mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.8 hours of sunshine per day.

September temperatures in Montrose

Montrose average temperature in September

September rainfall

Montrose average rain in September

September hourly sunshine

Montrose average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Montrose in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Montrose weather stats

Montrose weather statistics
Hottest month: July 29.2°C 84.6°F
Driest month: February 75mm 3ins
Sunniest month: July 10hrs
Coldest month: January 2.3°C 36.1°F
Wettest month: July 110mm 4.3ins
Map showing location of Montrose (40.30648, -75.98771) Montrose map pin © Google

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