Frisco
September
Weather in Frisco for September 2025
Your guide to Frisco weather in September - trends and predictions
In general, the average temperature in Frisco at the beginning of September is 35.3 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 34.6 °F by the end of September.
The climate of Frisco in September is notably wet, with an average of 11 rainy days.
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19
Dry days
11
Rainy days
0
Snow days
37°/23°
Temperatures
22 km/h
Avg max wind
48 %
Avg humidity
Frisco in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  35° | 2  36° | 3  33° | 4 32° | 5 35° | 6 38° | 7  38° |
| 8 38° | 9 35° | 10 36° | 11  32° | 12  31° | 13  32° | 14 33° |
| 15 33° | 16  33° | 17 35° | 18 36° | 19 37° | 20  38° | 21 37° |
| 22 35° | 23 33° | 24 37° | 25 31° | 26 34° | 27 34° | 28 34° |
| 29 36° | 30 36° |
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Temperatures trend during September in Frisco
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 | 35° /23° | 2.9 mm | 8 | |
| Sept. 2 | Cloudy | 36° /23° | 0.7 mm | 8 | |
| Sept. 3 | Thundery outbreaks possible | 33° /23° | 3.5 mm | 7 | |
| Sept. 4 | Thundery outbreaks possible | 32° /22° | 1.5 mm | 7 | |
| Sept. 5 | Partly cloudy | 35° /22° | 0.7 mm | 9 | |
| Sept. 6 | Thundery outbreaks possible | 38° /25° | 0.4 mm | 9 | |
| Sept. 7 | Sunny | 38° /24° | 0 mm | 9 | |
| Sept. 8 | Sunny | 38° /23° | 0.3 mm | 10 | |
| Sept. 9 | Sunny | 35° /21° | 0 mm | 9 | |
| Sept. 10 | Cloudy | 36° /19° | 0 mm | 8 | |
| Sept. 11 | Light rain shower | 32° /22° | 1.5 mm | 7 | |
| Sept. 12 | Torrential rain shower | 31° /21° | 32.9 mm | 8 | |
| Sept. 13 | Overcast | 32° /22° | 0 mm | 8 | |
| Sept. 14 | Overcast | 33° /21° | 0.4 mm | 7 | |
| Sept. 15 | Cloudy | 33° /22° | 1.4 mm | 7 | |
| Sept. 16 | Mist | 33° /21° | 0.6 mm | 8 | |
| Sept. 17 | Sunny | 35° /19° | 0 mm | 9 | |
| Sept. 18 | Sunny | 36° /23° | 0 mm | 9 | |
| Sept. 19 | Cloudy | 37° /23° | 0 mm | 8 | |
| Sept. 20 | Heavy rain at times | 38° /23° | 1.2 mm | 9 | |
| Sept. 21 | Thundery outbreaks possible | 37° /24° | 0.2 mm | 9 | |
| Sept. 22 | Thundery outbreaks possible | 35° /23° | 1.8 mm | 8 | |
| Sept. 23 | Thundery outbreaks possible | 33° /24° | 14.5 mm | 7 | |
| Sept. 24 | Thundery outbreaks possible | 37° /23° | 2.1 mm | 8 | |
| Sept. 25 | Thundery outbreaks possible | 31° /20° | 4 mm | 7 | |
| Sept. 26 | Mist | 34° /17° | 0 mm | 8 | |
| Sept. 27 | Partly cloudy | 34° /18° | 0 mm | 9 | |
| Sept. 28 | Partly cloudy | 34° /19° | 0 mm | 9 | |
| Sept. 29 | Sunny | 36° /20° | 0 mm | 8 | |
| Sept. 30 | Sunny | 36° /20° | 0 mm | 9 | |
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Important Notice
Our weather forecast for Frisco 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 Frisco forecast closer to your planned date for the most up-to-date weather information.
Frisco in September - FAQ
What are the expected maximum and minimum temperatures in Frisco during September?
With daytime temperatures soaring above 37° and not dropping much below 23° at night, September in Frisco is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Frisco during September?
Moderate rainfall is anticipated in Frisco during September, with a total of 90.7 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Frisco during September?
The average wind speed in Frisco during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
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