Park City weather in September
September in Park City: nice, a little rain, with clean air — not the best time to visit.
#10 of 12 months in Park City · #604 of 604 destinations to visit in September · comfort 20/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Park City climate normals — September
| Daytime high | 23°C / 73°F | 😎 nice |
|---|---|---|
| Nighttime low | 8°C / 47°F | |
| Feels like (high) | 20°C / 68°F | |
| Rainfall | 46 mm / 1.8 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 56% | 🍃 comfortable |
| Dew point | 5°C / 40°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.5 h | |
| Wind | 13 km/h / 8 mph | |
| Snowfall | 0.4 cm / 0.2 in | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Park City?
Loading map…
Park City in September — FAQ
- Is September a good time to visit Park City?
- September in Park City: nice, a little rain, with clean air — not the best time to visit. It ranks #10 of 12 months for Park City on SeasonMap's comfort score (20/100).
- What is the weather like in Park City in September?
- In September, Park City averages a daily high of 22.8°C and a low of 8.3°C, with about 46.1 mm of rain over roughly 7 rainy days.
- What is the air quality in Park City in September?
- Park City has a mean US Air Quality Index of about 39 in September.