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Weather in Erie County for September 2025

Your guide to Erie County weather in September - trends and predictions
  • In general, the average temperature in Erie County at the beginning of September is 26.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22 °F by the end of September.

  • Erie County sees moderate rainfall in September, averaging 8 rainy days.

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Average dry days
22
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/13°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Erie County in September average weather

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Temperatures trend during September in Erie County

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
Sept. 1 Partly cloudy
Partly cloudy
26° /14° 0.6 mm 7
Sept. 2 Overcast
Overcast
22° /14° 0 mm 5
Sept. 3 Cloudy
Cloudy
25° /14° 0 mm 6
Sept. 4 Overcast
Overcast
28° /17° 0 mm 7
Sept. 5 Partly cloudy
Partly cloudy
30° /17° 0 mm 8
Sept. 6 Thundery outbreaks possible
Thundery outbreaks possible
30° /18° 0.5 mm 7
Sept. 7 Thundery outbreaks possible
Thundery outbreaks possible
22° /14° 8.4 mm 5
Sept. 8 Light rain shower
Light rain shower
22° /13° 2.4 mm 5
Sept. 9 Mist
Mist
22° /14° 0.9 mm 5
Sept. 10 Light rain shower
Light rain shower
22° /14° 7.9 mm 5
Sept. 11 Mist
Mist
25° /14° 0 mm 7
Sept. 12 Overcast
Overcast
26° /15° 1.6 mm 6
Sept. 13 Overcast
Overcast
23° /13° 0 mm 6
Sept. 14 Mist
Mist
24° /13° 0 mm 6
Sept. 15 Mist
Mist
25° /13° 0 mm 6
Sept. 16 Mist
Mist
25° /13° 0 mm 6
Sept. 17 Mist
Mist
23° /15° 0 mm 5
Sept. 18 Patchy rain possible
Patchy rain possible
23° /13° 0.7 mm 6
Sept. 19 Mist
Mist
22° /13° 0 mm 5
Sept. 20 Sunny
Sunny
25° /12° 0 mm 6
Sept. 21 Mist
Mist
27° /15° 3 mm 6
Sept. 22 Partly cloudy
Partly cloudy
26° /13° 0 mm 7
Sept. 23 Overcast
Overcast
21° /14° 0 mm 5
Sept. 24 Overcast
Overcast
22° /13° 1.6 mm 5
Sept. 25 Mist
Mist
23° /14° 1.2 mm 5
Sept. 26 Mist
Mist
22° /14° 0 mm 5
Sept. 27 Overcast
Overcast
22° /11° 0 mm 5
Sept. 28 Patchy rain possible
Patchy rain possible
20° /14° 0.3 mm 5
Sept. 29 Patchy rain possible
Patchy rain possible
22° /16° 0.2 mm 5
Sept. 30 Overcast
Overcast
23° /14° 0 mm 6
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Important Notice
Our weather forecast for Erie County in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Erie County forecast closer to your planned date for the most up-to-date weather information.

Erie County in September - FAQ

What are the expected maximum and minimum temperatures in Erie County during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Erie County during September?
In September, Erie County can expect light to moderate rainfall, totaling 39.5 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Erie County during September?
The average wind speed in Erie County during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Erie County

Explore the daily rainfall trends and prepare for Erie Countys September weather 💧

UV exposure in Erie County during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Erie County?

Get accurate weather forecasts for Erie County, located at latitude 42.886 and longitude -78.878. Stay updated with localized weather information tailored for Erie County.

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