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Park City Weather in September
September in Park City averages 21°C (70°F) during the day and 6°C (43°F) at night. The excellent conditions and moderate rainfall make it a solid month to visit.
Rainfall in Park City in September
Typically around 10 days of rainfall are expected, averaging 51 mm (2 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Park City in September
September in Park City is generally excellent, with days reaching 21°C (70°F) and nights settling around 6°C (43°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights fall to 6°C (43°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Park City in September
The month enjoys around 299 hours of sunshine, creating mostly sunny days with good weather conditions.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Park City.
Park City Temperature in September
Min Temperature
6°C (43°F)
Max Temperature
21°C (70°F)
Chance of Rain
35%
Precipitation
51 mm (2 in)
Rainy days
10 days
Sunshine
299 hours
Percentage Sunshine
81%
Park City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Park City - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Park City typically drop from around 29°C (84°F) at the start of September to approximately 23°C (73°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°F) to 16°C (61°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Park City in September
Browse day-by-day weather records for Park City spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Park City historical weather extremes in September
The extremes listed below come from historical weather data collected in Park City from 1976 through 2026.
- The warmest day in September was on September 7, 2022, with a maximum of 39°C (102°F).
- Park City experienced its chilliest September day on September 29, 1982, reaching only 7°C (45°F).
- Park City registered its coldest September night on September 29, 1986, with temperatures dropping to 0°C (32°F).
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Park City in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Park City in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping4/10 -
Outdoor sports10/10
Park City 3-Day Forecast
More climate data for Park City
See the full Park City climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
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