McKinney Weather in September
September in McKinney sees daytime temperatures around 32°C (90°F) and lows of 19°C (66°F) at night. With around 78 mm (3.1 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in McKinney in September
Historically, September sees about 6 days of rain, with a monthly average of 78 mm (3.1 in). Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in McKinney in September
Expect highs of 32°C (90°F) in McKinney in September, with nights dropping to around 19°C (66°F). For most visitors, the main thing to prepare for is the heat during the day. At 19°C (66°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in McKinney in September
Expect sunny days throughout the month, with an estimated 248 hours of sunshine. This makes it a pleasant time to visit McKinney.If you prefer dry days with pleasant temperatures, March, April, May, October and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our McKinney's climate page.
McKinney Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
32°C (90°F)
Chance of Rain
20%
Precipitation
78 mm (3.1 in)
Rainy days
6 days
Humidity
67% *
Sunshine
248 hours *
Percentage Sunshine
66% *
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
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What to Wear in McKinney in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in McKinney in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our McKinney's climate page.
Temperature Rainfall Sunshine Humidity
See the full McKinney climate overview or explore weather in the United States of America.
