September weather forecast
Salt Lake City, UT

A stunning autumn panorama of the Salt Lake City landscape in Utah
A stunning autumn panorama of the Salt Lake City landscape in Utah

Weather in September

The first month of the autumn, September, is still a pleasant month in Salt Lake City, Utah, with an average temperature fluctuating between 52.7°F (11.5°C) and 73.2°F (22.9°C).

Temperature

In September, the average high-temperature drops from a warm 82.8°F (28.2°C) in August to an agreeable 73.2°F (22.9°C). In Salt Lake City, Utah, in September, the average low-temperature is 52.7°F (11.5°C).

Humidity

The average relative humidity in September in Salt Lake City is 43%.

Rainfall

In September, in Salt Lake City, the rain falls for 5 days. Throughout September, 0.35" (9mm) of precipitation is accumulated. In Salt Lake City, during the entire year, the rain falls for 71.6 days and collects up to 4.21" (107mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September in Salt Lake City is 12h and 27min.
On the first day of the month, sunrise is at 6:54 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:11 pm MDT.

Sunshine

The average sunshine in September is 10h.

UV index

In Salt Lake City, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Salt Lake City?

In Salt Lake City, in September, the average high-temperature is 73.2°F (22.9°C), and the average low-temperature is 52.7°F (11.5°C).

What is the average humidity in September in Salt Lake City?

In September, the average relative humidity in Salt Lake City, Utah, is 43%.

How much does it rain in Salt Lake City in September?

In Salt Lake City, Utah, during September, the rain falls for 5 days and regularly aggregates up to 0.35" (9mm) of precipitation.

When it does not snow in Salt Lake City?

May through September are months without snowfall.

Does it snow in Salt Lake City in September?

In Salt Lake City, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Salt Lake City have in September?

In September, the average day length in Salt Lake City, Utah, is 12h and 27min.

When are sunrise and sunset in September in Salt Lake City?

On the first day of September, sunrise is at 6:54 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:11 pm MDT.

How long on average sun shines in September in Salt Lake City?

In Salt Lake City, the average sunshine duration in September is 10h.

How high is the UV index in September in Salt Lake City?

The average daily maximum UV index in September in Salt Lake City, Utah, is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Salt Lake City, UT

Average temperature in September - Salt Lake City, UT
  • Average high temperature in September: 73.2°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in September
Salt Lake City, UT

Average pressure in September - Salt Lake City, UT
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Salt Lake City, UT

Average wind speed in September - Salt Lake City, UT
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is January (5mph).

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Average humidity in September
Salt Lake City, UT

Average humidity in September - Salt Lake City, UT
  • Average humidity in September: 43%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in September
Salt Lake City, UT

Average rainfall in September - Salt Lake City, UT
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is March (0.51").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in September
Salt Lake City, UT

Average rainfall days in September - Salt Lake City, UT
  • Average rainfall days in September: 5 days

The month with the highest number of rainy days is April (8.9 days).
The month with the least rainy days is June (4 days).

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Average snowfall in September
Salt Lake City, UT

Average snowfall in September - Salt Lake City, UT
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.68").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Salt Lake City, UT

Average snowfall days in September - Salt Lake City, UT
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Salt Lake City, UT

Average daylight in September / Average sunshine in September - Salt Lake City, UT
  • Average daylight in September: 12h and 27min

The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in September: 10h and 0min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

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Average sunshine days in September
Salt Lake City, UT

Average sunshine days in September - Salt Lake City, UT
  • Average sunshine days in September: 22.4 days

The month with the most sunshine days is June (23.8 days).
The month with the least sunshine days is February (19 days).

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Average UV index in September
Salt Lake City, UT

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Salt Lake City, UT

Average cloud cover in September - Salt Lake City, UT
  • Average cloud cover in September: 12

The months with the most cloud cover are January and February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 9).

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Average visibility in September
Salt Lake City, UT

Average visibility in September - Salt Lake City, UT
  • Average visibility in September: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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