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Weather in Deer Valley for September 2025

Your guide to Deer Valley weather in September - trends and predictions
  • In general, the average temperature in Deer Valley at the beginning of September is 39.1 °F. As the month progressed, temperatures tended to slightly increase, reaching an average of 39.3 °F by the end of September.

  • With an average of 3 rainy days, Deer Valley experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.

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Average dry days
27
Dry days
Average rainy days
3
Rainy days
Average snowy days
0
Snow days
Average temperatures
38°/22°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
24 %
Avg humidity

Deer Valley in September average weather

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Temperatures trend during September in Deer Valley

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 Light rain shower
Light rain shower
37° /26° 21.3 mm 8
Sept. 2 Partly cloudy
Partly cloudy
38° /28° 0.1 mm 9
Sept. 3 Partly cloudy
Partly cloudy
39° /27° 0 mm 9
Sept. 4 Sunny
Sunny
39° /29° 0 mm 10
Sept. 5 Sunny
Sunny
40° /28° 0 mm 10
Sept. 6 Sunny
Sunny
40° /27° 0.1 mm 10
Sept. 7 Sunny
Sunny
41° /27° 0.1 mm 9
Sept. 8 Partly cloudy
Partly cloudy
40° /27° 0 mm 9
Sept. 9 Sunny
Sunny
41° /28° 0 mm 10
Sept. 10 Overcast
Overcast
40° /28° 0 mm 9
Sept. 11 Overcast
Overcast
39° /29° 0 mm 9
Sept. 12 Thundery outbreaks possible
Thundery outbreaks possible
36° /28° 1.8 mm 9
Sept. 13 Patchy light rain with thunder
Patchy light rain with thunder
37° /26° 2.5 mm 9
Sept. 14 Sunny
Sunny
36° /25° 0 mm 9
Sept. 15 Sunny
Sunny
36° /24° 2.7 mm 8
Sept. 16 Sunny
Sunny
37° /23° 0.1 mm 9
Sept. 17 Overcast
Overcast
34° /23° 0 mm 8
Sept. 18 Sunny
Sunny
35° /20° 0 mm 9
Sept. 19 Sunny
Sunny
35° /19° 0 mm 9
Sept. 20 Overcast
Overcast
33° /20° 0 mm 8
Sept. 21 Sunny
Sunny
32° /19° 0 mm 8
Sept. 22 Cloudy
Cloudy
35° /19° 0 mm 8
Sept. 23 Overcast
Overcast
37° /20° 0 mm 9
Sept. 24 Sunny
Sunny
38° /20° 0 mm 9
Sept. 25 Sunny
Sunny
40° /20° 0 mm 10
Sept. 26 Sunny
Sunny
41° /23° 0 mm 10
Sept. 27 Cloudy
Cloudy
40° /22° 0 mm 9
Sept. 28 Overcast
Overcast
40° /23° 0 mm 9
Sept. 29 Sunny
Sunny
39° /24° 0 mm 10
Sept. 30 Sunny
Sunny
37° /22° 0 mm 9
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Important Notice
Our weather forecast for Deer Valley 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 Deer Valley forecast closer to your planned date for the most up-to-date weather information.

Deer Valley in September - FAQ

What are the expected maximum and minimum temperatures in Deer Valley during September?
With daytime temperatures soaring above 38° and not dropping much below 22° at night, September in Deer Valley is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Deer Valley during September?
Moderate rainfall is anticipated in Deer Valley during September, with a total of 50.4 mm spread over approximately 3 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Deer Valley during September?
The average wind speed in Deer Valley during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Deer Valley

Explore the daily rainfall trends and prepare for Deer Valleys September weather 💧

UV exposure in Deer Valley during September

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

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Location coordinates Where is Deer Valley?

Get accurate weather forecasts for Deer Valley, located at latitude 33.684 and longitude -112.135. Stay updated with localized weather information tailored for Deer Valley.

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