September weather forecast and climate
Park City, UT

A beautiful sunny winter morning in Park City, Utah
A beautiful sunny winter morning in Park City, Utah

Weather in September

The first month of the autumn, September, is also an agreeable month in Park City, Utah, with average temperature fluctuating between 70.5°F (21.4°C) and 43.3°F (6.3°C).

Temperature

In Park City, the average high-temperature marginally drops, from a moderately hot 79.3°F (26.3°C) in August, to a pleasant 70.5°F (21.4°C). In September, in Park City, the average low-temperature is 43.3°F (6.3°C).

Humidity

The average relative humidity is 48%.

Rainfall

September is the month with the least rainfall. Rain falls for 5.5 days and accumulates 0.28" (7mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Park City. September is the first month it typically snows in Park City. Throughout September, in the average 0.8 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, there are 83.1 snowfall days, and 35.71" (907mm) of snow is accumulated.

Daylight

The average length of the day is 12.4h.

Sunshine

In Park City, the average sunshine in September is 10.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Park City?

In September, in Park City, the average high-temperature is 70.5°F (21.4°C), and the average low-temperature is 43.3°F (6.3°C).

What is the average humidity in September in Park City?

In Park City, the average relative humidity in September is 48%.

How many days does it rain in September in Park City?

In Park City, Utah, in September, it is raining for 5.5 days, with typically 0.28" (7mm) of accumulated precipitation.

What is the driest month in Park City?

September is the month with the least rainfall in Park City, Utah. Rain falls for 5.5 days and accumulates 0.28" (7mm) of precipitation.

When does it start snowing in Park City?

September is the first month it typically snows in Park City. Throughout September, in the average 0.8 snowfall days, it receives 0.28" (7mm) of snow.

How many hours of daylight does Park City have in September?

In September, the average length of the day in Park City, Utah, is 12.4h.

How many hours of sunshine does Park City have in September?

The average sunshine in September is 10.1h.

How high is the UV index in September in Park City?

In Park City, Utah, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in September
Park City, UT

Average temperature in September - Park City, UT
  • Average high temperature in September: 21.4°C

The warmest month (with the highest average high temperature) is July (27.3°C).
The month with the lowest average high temperature is December (-1.9°C).

  • Average low temperature in September: 6.3°C

The month with the highest average low temperature is July (10.8°C).
The coldest month (with the lowest average low temperature) is January (-11.8°C).

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Average pressure in September
Park City, UT

Average pressure in September - Park City, UT
  • Average pressure in September: 1014.3mbar

The month with the highest atmospheric pressure is January (1025.1mbar).
The month with the lowest atmospheric pressure is June (1011.4mbar).

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Average wind speed in September
Park City, UT

Average wind speed in September - Park City, UT
  • Average wind speed in September: 8.9km/h

The windiest months (with the highest average wind speed) are April and June (9.3km/h).
The calmest month (with the lowest average wind speed) is January (7.5km/h).

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Average humidity in September
Park City, UT

Average humidity in September - Park City, UT
  • Average humidity in September: 48%

The month with the highest relative humidity is January (88%).
Months with the lowest relative humidity are July and August (43%).

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Average rainfall in September
Park City, UT

Average rainfall in September - Park City, UT
  • Average rainfall in September: 7mm

The wettest months (with the highest rainfall) are February and May (21mm).
The driest month (with the least rainfall) is September (7mm).

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Average rainfall days in September
Park City, UT

Average rainfall days in September - Park City, UT
  • Average rainfall days in September: 5.5 days

The month with the highest number of rainy days is May (9.8 days).
The month with the least rainy days is November (4.4 days).

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Average snowfall in September
Park City, UT

Average snowfall in September - Park City, UT
  • Average snowfall in September: 7mm

The month with the highest snowfall is February (173mm).
Months with the least snowfall are July and August (0mm).

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Average snowfall days in September
Park City, UT

Average snowfall days in September - Park City, UT
  • Average snowfall days in September: 0.8 days

The month with the highest number of snowfall days is February (16.2 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Park City, UT

Average daylight in September / Average sunshine in September - Park City, UT
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 10.1h

The month with the most sunshine is August (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 5.1h).

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Average sunshine days in September
Park City, UT

Average sunshine days in September - Park City, UT
  • Average sunshine days in September: 20.1 days

The month with the most sunshine days is June (22.5 days).
The month with the least sunshine days is February (12.6 days).

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Average UV index in September
Park City, UT

Average UV index in September - Park City, UT
  • Average UV index in September: 4

Months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Park City, UT

Average cloud cover in September - Park City, UT
  • Average cloud cover in September: 13

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 11).

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Average visibility in September
Park City, UT

Average visibility in September - Park City, UT
  • Average visibility in September: 10km

Months with the highest visibility are June, July, August, September and October (10km).
The month with the lowest visibility is January (6km).

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