Weather in Lafayette in September — Climate & Temperature

September

Weather in Lafayette in September

Village

United States > Pennsylvania > McKean County > Lafayette > September

Avg High

21°C

Avg Low

8°C

Rainfall

106 mm

Wind Speed

41 km/h

Sunshine

5.0 hrs/day

Humidity

80%

What to Expect

September in Lafayette brings mild conditions, with daytime highs around 20.9°C and nighttime lows near 8.0°C. Typical monthlyWeather.season.autumn weather for the region.

Expect significant rainfall this month, with approximately 106 mm of precipitation. Bring waterproof gear and an umbrella.

Limited sunshine with roughly 5.0 hours per day. Overcast skies are common, so plan indoor alternatives.

Humidity is high at around 80%, which can make temperatures feel warmer. Stay hydrated and seek shade during peak hours.

Moderate winds averaging 3.1 m/s provide a refreshing breeze without being disruptive.

Compared to Other Months

September is 7.5°C warmer than the annual average of 6.9°C in Lafayette. Compared to August, temperatures are 3.6°C lower. Looking ahead to October, expect temperatures 6.0°C lower.