Plano weather in September
September in Plano averages 90°F by day and 70°F at night, with 3.1 inches of precipitation. It is the 4th-warmest and 7th-wettest month of the year here.
- Average high
- 90°F-7° vs August
- Average low
- 70°F0 nights below freezing
- Precipitation
- 3.1 in4 days with 0.1 in. or more
- Snow
- 0.0 in17 days at 90°F+
Is September a good time to visit Plano?
September is hot. Average highs reach 90°F, with about 17 days at 90°F or more. The most comfortable months overall are March to April and November.
On September 15 the sun rises at 7:10 am and sets at 7:32 pm, giving 12h 22m of daylight. Daylight all year.
What to pack for Plano in September
- Light, breathable clothes, a hat and sunscreen; carry water
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
September nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| Plano | 90°F | 70°F | 3.1 in | |
| Richardson, TX | 6 mi | 90°F | 70°F | 3.1 in |
| Allen, TX | 8 mi | 88°F | 66°F | 2.8 in |
| Carrollton, TX | 9 mi | 90°F | 70°F | 3.1 in |
| Garland, TX | 10 mi | 90°F | 70°F | 3.1 in |
| Frisco, TX | 10 mi | 90°F | 70°F | 3.1 in |
| McKinney, TX | 13 mi | 88°F | 66°F | 2.8 in |
Frequently asked questions
What is the weather like in Plano in September?
In September, Plano averages a high of 90°F and a low of 70°F, with 3.1 inches of precipitation (NOAA 1991-2020 normals).
Is September a good time to visit Plano?
September is hot in Plano, with average highs of 90°F. Plan outdoor time for mornings and evenings.
Does it snow in Plano in September?
Rarely. The September snowfall normal is under half an inch.
Before and after: Plano in August and Plano in October. All twelve months: Plano weather by month.
NOAA NCEI 1991-2020 climate normals, station Dallas Love Field, TX, 14.2 miles from the city center.