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Weather in Lancaster for September 2025

Your guide to Lancaster weather in September - trends and predictions
  • In general, the average temperature in Lancaster at the beginning of September is 33.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 32 °F by the end of September.

  • Precipitation in Lancaster during September is a rare event, with an average of fewer than 2 rainy days.

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Average dry days
30
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/13°
Temperatures
Average wind speed
30 km/h
Avg max wind
Average humidity
47 %
Avg humidity

Lancaster in September average weather

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Temperatures trend during September in Lancaster

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 Sunny
Sunny
34° /19° 0 mm 9
Sept. 2 Partly cloudy
Partly cloudy
32° /18° 0 mm 8
Sept. 3 Overcast
Overcast
30° /17° 0 mm 7
Sept. 4 Sunny
Sunny
33° /17° 0 mm 8
Sept. 5 Sunny
Sunny
36° /17° 0 mm 9
Sept. 6 Sunny
Sunny
36° /18° 0 mm 9
Sept. 7 Sunny
Sunny
36° /18° 0 mm 9
Sept. 8 Partly cloudy
Partly cloudy
36° /19° 0 mm 9
Sept. 9 Sunny
Sunny
38° /20° 0 mm 9
Sept. 10 Overcast
Overcast
34° /21° 0 mm 8
Sept. 11 Partly cloudy
Partly cloudy
34° /16° 0 mm 9
Sept. 12 Sunny
Sunny
31° /14° 0 mm 8
Sept. 13 Sunny
Sunny
32° /13° 0 mm 8
Sept. 14 Sunny
Sunny
31° /14° 0 mm 8
Sept. 15 Sunny
Sunny
31° /14° 0 mm 8
Sept. 16 Sunny
Sunny
27° /14° 0 mm 7
Sept. 17 Sunny
Sunny
29° /11° 0 mm 8
Sept. 18 Sunny
Sunny
25° /9° 0 mm 6
Sept. 19 Mist
Mist
26° /10° 0 mm 6
Sept. 20 Sunny
Sunny
27° /10° 0 mm 7
Sept. 21 Cloudy
Cloudy
26° /11° 0 mm 6
Sept. 22 Overcast
Overcast
29° /9° 0 mm 7
Sept. 23 Partly cloudy
Partly cloudy
32° /14° 0 mm 8
Sept. 24 Sunny
Sunny
33° /14° 0 mm 9
Sept. 25 Sunny
Sunny
33° /14° 0 mm 9
Sept. 26 Sunny
Sunny
33° /11° 0 mm 9
Sept. 27 Sunny
Sunny
34° /13° 0 mm 9
Sept. 28 Sunny
Sunny
33° /14° 0 mm 9
Sept. 29 Sunny
Sunny
32° /13° 0 mm 8
Sept. 30 Light rain shower
Light rain shower
26° /12° 0.1 mm 7
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Important Notice
Our weather forecast for Lancaster 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 Lancaster forecast closer to your planned date for the most up-to-date weather information.

Lancaster in September - FAQ

What are the expected maximum and minimum temperatures in Lancaster during September?
Expect warm days with temperatures around 30°, cooling to mild conditions of 13° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Lancaster during September?
Rainfall in Lancaster during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Lancaster during September?
The average wind speed in Lancaster during September is 30 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Lancaster

Explore the daily rainfall trends and prepare for Lancasters September weather 💧

UV exposure in Lancaster during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Lancaster?

Get accurate weather forecasts for Lancaster, located at latitude 34.698 and longitude -118.137. Stay updated with localized weather information tailored for Lancaster.

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