September weather forecast
Layton, UT

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Weather in September

September in Layton, Utah, means the arrival of the fall season, with a significant difference felt from the summers. The temperature averages between 52.7°F (11.5°C) and 72.5°F (22.5°C), a drop from the preceding months, aligning with the transition to autumn. The weather becomes mild and the city begins to be wrapped in hues of autumn yellows and oranges. It is a remarkable time to explore the city's outdoors, with beautiful scenic trails laden with colorful foliage.

Temperature

In Layton, entering September brings a subtle temperature decrement, reducing from August's warm 81.1°F (27.3°C) to an agreeable 72.5°F (22.5°C). During the nights in September, Layton experiences a consistent average temperature of 52.7°F (11.5°C).

Humidity

The average relative humidity in September in Layton is 44%.

Rainfall

In Layton, Utah, during September, the rain falls for 7.3 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Layton, during the entire year, the rain falls for 98.9 days and collects up to 13.58" (345mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows in Layton. Throughout September, in the average 0.1 snowfall days, it receives 0.31" (8mm) of snow. Throughout the year, in Layton, there are 54.4 snowfall days, and 44.84" (1139mm) of snow is accumulated.

Daylight

In Layton, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:55 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:10 pm MDT.

Sunshine

In Layton, the average sunshine in September is 9.9h.

UV index

The average daily maximum UV index in September in Layton is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Be vigilant - Preventing sunburn is recommended. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are the temperatures in Layton in September?

In September, the average high-temperature and low-temperature in Layton are 72.5°F (22.5°C) and 52.7°F (11.5°C) respectively.

What is the average humidity in September in Layton?

In September, the average relative humidity in Layton is 44%.

How many days does it rain in September in Layton?

In Layton, during September, the rain falls for 7.3 days and regularly aggregates up to 0.91" (23mm) of precipitation.

When does it start to snow in Layton?

September is the first month it typically snows in Layton. Throughout September, in the average 0.1 snowfall days, it receives 0.31" (8mm) of snow.

What is the average length of the day in September in Layton?

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

When is the sunrise / sunset in September in Layton?

In September, on the first day of the month, sunrise is at 6:55 am and sunset at 7:59 pm. On the last day of the month, in Layton, Utah, sunrise is at 7:24 am and sunset at 7:10 pm MDT.

How many hours of sunshine does Layton have in September?

In September, the average sunshine duration in Layton is 9.9h.

How high is the UV index in September in Layton?

In September, the average daily maximum UV index in Layton, Utah, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Layton, UT

Average temperature in September - Layton, UT
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in September
Layton, UT

Average pressure in September - Layton, 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 (29.88"Hg).

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Average wind speed in September
Layton, UT

Average wind speed in September - Layton, UT
  • Average wind speed in September: 5.9mph

The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is January (5mph).

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Average humidity in September
Layton, UT

Average humidity in September - Layton, UT
  • Average humidity in September: 44%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (38%).

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Average rainfall in September
Layton, UT

Average rainfall in September - Layton, UT
  • Average rainfall in September: 0.91"

The wettest months (with the highest rainfall) are January and February (1.61").
The driest months (with the least rainfall) are July and August (0.43").

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Average rainfall days in September
Layton, UT

Average rainfall days in September - Layton, UT
  • Average rainfall days in September: 7.3 days

The month with the highest number of rainy days is April (12.3 days).
The month with the least rainy days is January (5.5 days).

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Average snowfall in September
Layton, UT

Average snowfall in September - Layton, UT
  • Average snowfall in September: 0.31"

The month with the highest snowfall is January (11.02").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Layton, UT

Average snowfall days in September - Layton, UT
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Layton, UT

Average daylight in September / Average sunshine in September - Layton, UT
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in September
Layton, UT

Average sunshine days in September - Layton, UT
  • Average sunshine days in September: 19.1 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is February (12.7 days).

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Average UV index in September
Layton, UT

Average UV index in September - Layton, UT
  • Average UV index in September: 4

The months with the highest UV index are June and July (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
Layton, UT

Average cloud cover in September - Layton, UT
  • Average cloud cover in September: 13

The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 10).

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Average visibility in September
Layton, UT

Average visibility in September - Layton, 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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Layton, Utah, USA

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