Park City, UT weather in September
Expect mild weather with some rain in Park City in September, with highs near 74°F and lows near 41°F. Rain or snow falls on about 6 days. Snowfall averages about 0.5 in. Great for outdoor plans.
- Normal high
- 74°F
- Normal low
- 41°F
- Wet days
- 6
- 1.5 in total
- Snowfall
- 0.5 in
- normal snowfall
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 79°F | 67°F |
| Normal low | 45°F | 36°F |
| Chance of a wet day | 21% | 21% |
| Sunrise / sunset | 6:53 am / 7:58 pm | 7:21 am / 7:10 pm |
| Daylight | 13.1 h | 11.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Mountain Time).
What kind of days to expect
- Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)18 of 30
- Hot dayshigh 90°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow6 of 30
- Notable rainat least 0.10 in4 of 30
- Freezing nightslow 32°F or below5 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain and snow in September
Normal precipitation is 1.5 in; a dry September brings about 0.6 in and a wet one about 2.2 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 0.5 in.
How September varies from year to year
- Warmest September, 1991-20202001: average high 81°F
- Coolest September2013: average high 70°F
- Wettest September2014: 4.1 in
- Driest September2020: 0.2 in
- Highest reading91°F (September 5, 2020)
- Lowest reading19°F (September 28, 1999)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 83°F | 74°F | 59°F |
| Normal low | 49°F | 41°F | 31°F |
| Wet days | 6 | 6 | 8 |
| Comfortable days | 6 | 18 | 13 |
| Daylight | 13.8 h | 12.5 h | 11.1 h |
Highs change by -9°F from August and -15°F into October.
Nearby alternatives in September
- Warmer: Salt Lake City, UT22 mi · high 81°F · 5 wet days
- Cooler: Jackson, WY199 mi · high 68°F · 8 wet days
How Park City ranks in September
- Normal high307th warmest of 378 cities; 6th of 7 in Utah
- Wet days114th driest of 378
What to pack for Park City in September
- Layers – afternoons near 74°F but nights near 41°F
Frost in September
The first fall frost typically comes around Sep 25; in 1 year in 10 it comes before Sep 12. All frost dates for Park City.
Heating and cooling
September has 241 heating degree days and 5 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Park City in September?
The normal high is 74°F and the normal low is 41°F. From 1991 to 2020 the hottest September reading was 91°F (most recently on September 5, 2020).
Does it rain a lot in Park City in September?
About 6 days in September have at least 0.01 in of precipitation, and the normal total is 1.5 in. The wettest September in 1991-2020 was in 2014 (4.1 in); the driest was in 2020 (0.2 in).
Does it snow in Park City in September?
Yes. Normal snowfall in September is 0.5 in.
Is September a good time to visit Park City?
September ranks 3rd of 12 months on our comfort score for Park City (75 out of 100). It has about 18 comfortable days (judged by temperature only). The best months are May, June and September.
Where the numbers come from
- Temperature, rain, snowfall and snow depth: Kamas (USC00424467), 11 mi E of the city center, 6,481 ft (533 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Frost dates: Park City (USC00426644), 0.8 mi NNW of the city center, 6,900 ft (114 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Not available for this location: humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).