Jackson Weather in September

What's the weather like in Jackson (Wyoming) in September 2024?

The climate in Jackson during September can be summarized as cool and reasonably dry.

September is in the fall / autumn in Jackson and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 19°C (67°F), whilst at night 1°C (33°F) is normal.

Jackson weather averages (imperial / metric)
Daytime temperature 19.3°C 66.7°F
Nightly temperature 0.6°C 33°F
Average temperature 9.9°C 49.8°F
Daily sunshine 9.6 hrs
Avg rainfall 36 mm 1.4 ins
Rainy days 7 days
Sea temperature 15.3°C 59.6°F
Humidity 49%
Windspeed 14.4kph 9 mph

On average September is the 6th wettest month of the year in Jackson with around 36mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.6 hours of sunshine per day.

September temperatures in Jackson

Jackson average temperature in September

September rainfall

Jackson average rain in September

September hourly sunshine

Jackson 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 Jackson in September 2024.