Lawrenceville Weather in September

What's the weather like in Lawrenceville (Illinois) in September 2024?

The climate in Lawrenceville during September can be summarized as warm, humid and a little damp.

September is in the fall / autumn in Lawrenceville and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 27°C (80°F), whilst at night 14°C (56°F) is normal.

Lawrenceville weather averages (imperial / metric)
Daytime temperature 26.5°C 79.6°F
Nightly temperature 13.6°C 56.4°F
Average temperature 20°C 68°F
Daily sunshine 8.8 hrs
Avg rainfall 80 mm 3.2 ins
Rainy days 8 days
Sea temperature 22.1°C 71.8°F
Humidity 73%
Windspeed 12.2kph 8 mph

On average September is the 4th driest month of the year in Lawrenceville with around 80mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.8 hours of sunshine per day.

September temperatures in Lawrenceville

Lawrenceville average temperature in September

September rainfall

Lawrenceville average rain in September

September hourly sunshine

Lawrenceville 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 Lawrenceville in September 2024.