Average Weather in Park City Utah, United States
In Park City, the summers are warm, dry, and mostly clear and the winters are freezing, snowy, and partly cloudy. Over the course of the year, the temperature typically varies from 12°F to 79°F and is rarely below 1°F or above 86°F.
Based on the tourism score, the best time of year to visit Park City for warm-weather activities is from early July to mid August.
The warm season lasts for 3.1 months, from June 10 to September 13, with an average daily high temperature above 68°F. The hottest day of the year is July 26, with an average high of 79°F and low of 53°F.
The cold season lasts for 3.4 months, from November 21 to March 1, with an average daily high temperature below 35°F. The coldest day of the year is January 1, with an average low of 12°F and high of 24°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In Park City, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Park City begins around June 1 and lasts for 4.8 months, ending around October 26. On July 5, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 78% of the time, and overcast or mostly cloudy 22% of the time.
The cloudier part of the year begins around October 26 and lasts for 7.2 months, ending around June 1. On March 3, the cloudiest day of the year, the sky is overcast or mostly cloudy 53% of the time, and clear, mostly clear, or partly cloudy 47% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Park City varies throughout the year.
The wetter season lasts 10 months, from August 5 to June 6, with a greater than 17% chance of a given day being a wet day. The chance of a wet day peaks at 25% on May 3.
The drier season lasts 2.0 months, from June 6 to August 5. The smallest chance of a wet day is 9% on June 29.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Park City changes throughout the year.
Rain alone is the most common for 6.8 months, from April 10 to November 2. The highest chance of a day with rain alone is 18% on May 30.
Snow alone is the most common for 4.7 months, from November 2 to March 25. The highest chance of a day with snow alone is 16% on January 17.
Mixed snow and rain is the most common for 2.3 weeks, from March 25 to April 10. The highest chance of a day with mixed snow and rain is 9% on April 11.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Park City experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 7.5 months, from March 29 to November 12, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around September 25, with an average total accumulation of 1.2 inches.
The rainless period of the year lasts for 4.5 months, from November 12 to March 29. The least rain falls around January 19, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Park City experiences significant seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 8.0 months, from September 26 to May 27, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 27, with an average total liquid-equivalent accumulation of 1.2 inches.
The snowless period of the year lasts for 4.0 months, from May 27 to September 26. The least snow falls around August 2, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Park City varies significantly over the course of the year. In 2018, the shortest day is December 21, with 9 hours, 16 minutes of daylight; the longest day is June 21, with 15 hours, 5 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:54 AM on June 14, and the latest sunrise is 2 hours, 4 minutes later at 7:58 AM on November 3. The earliest sunset is at 4:58 PM on December 8, and the latest sunset is 4 hours, 2 minutes later at 9:01 PM on June 27.
Daylight saving time (DST) is observed in Park City during 2018, starting in the spring on March 11, lasting 7.8 months, and ending in the fall on November 4.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Park City, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
The average hourly wind speed in Park City experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 2.7 months, from February 18 to May 9, with average wind speeds of more than 5.6 miles per hour. The windiest day of the year is March 30, with an average hourly wind speed of 6.2 miles per hour.
The calmer time of year lasts for 9.3 months, from May 9 to February 18. The calmest day of the year is August 3, with an average hourly wind speed of 4.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Park City varies throughout the year.
The wind is most often from the west for 4.2 months, from March 17 to July 22 and for 3.1 weeks, from September 22 to October 14, with a peak percentage of 40% on May 3. The wind is most often from the south for 2.0 months, from July 22 to September 22 and for 5.1 months, from October 14 to March 17, with a peak percentage of 39% on September 2.
Best Time of Year to Visit
To characterize how pleasant the weather is in Park City throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Park City for general outdoor tourist activities is from early July to mid August, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Park City for hot-weather activities is from early July to mid August, with a peak score in the last week of July.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in Park City typically lasts for 3.6 months (110 days), from around June 3 to around September 21, rarely starting before May 11 or after June 22, and rarely ending before September 3 or after October 9.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Park City should appear around May 20, only rarely appearing before May 5 or after June 6.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 2.9 months, from May 15 to August 12, with an average daily incident shortwave energy per square meter above 7.2 kWh. The brightest day of the year is June 29, with an average of 8.4 kWh.
The darker period of the year lasts for 3.5 months, from October 31 to February 13, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest day of the year is December 21, with an average of 2.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Park City are 40.646 deg latitude, -111.498 deg longitude, and 7,388 ft elevation.
The topography within 2 miles of Park City contains large variations in elevation, with a maximum elevation change of 2,290 feet and an average elevation above sea level of 7,477 feet. Within 10 miles contains large variations in elevation (5,551 feet). Within 50 miles also contains extreme variations in elevation (10,338 feet).
The area within 2 miles of Park City is covered by shrubs (76%) and trees (21%), within 10 miles by shrubs (57%) and trees (33%), and within 50 miles by shrubs (45%) and trees (31%).
This report illustrates the typical weather in Park City, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Park City.
For each station, the records are corrected for the elevation difference between that station and Park City according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Park City is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Park City and a given station.
The stations contributing to this reconstruction are: Salt Lake City International Airport (25%, 42 kilometers, west); Provo Municipal Airport (26%, 51 kilometers, south); Evanston-Uinta County Burns Field (38%, 80 kilometers, northeast); and Vernal Regional Airport (11%, 169 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .