September weather forecast
Tremonton, UT

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Weather in September

September, the first month of the autumn in Tremonton, is also a moderately hot month, with an average temperature fluctuating between 74.3°F (23.5°C) and 51.3°F (10.7°C).

Temperature

In September, the meteorological conditions alter, with the average high-temperature shifting from a moderately hot 84.9°F (29.4°C) in August to a still warm 74.3°F (23.5°C). Tremonton experiences a significant contrast between daily highs and an average nighttime temperature of 51.3°F (10.7°C) during September.

Humidity

The average relative humidity in September in Tremonton is 41%.

Rainfall

In September, the rain falls for 8.3 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. Throughout the year, in Tremonton, there are 120 rainfall days, and 15.43" (392mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Tremonton. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.39" (10mm) of snow. Throughout the year, there are 61.2 snowfall days, and 42.91" (1090mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September in Tremonton, Utah, sunrise is at 6:55 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:11 pm MDT.

Sunshine

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

UV index

In Tremonton, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 4 during September translates into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What are the temperatures in Tremonton in September?

The average high-temperature and low-temperature in Tremonton during September are 74.3°F (23.5°C) and 51.3°F (10.7°C) respectively.

What is the average humidity in September in Tremonton?

The average relative humidity in September in Tremonton, Utah, is 41%.

How many days does it rain in September in Tremonton?

In Tremonton, Utah, in September, during 8.3 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When does it start snowing in Tremonton?

September is the first month it typically snows in Tremonton, Utah. Throughout September, in the average 0.1 snowfall days, it receives 0.39" (10mm) of snow.

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

In September, the average day length is 12h and 28min.

When are sunrise and sunset in September in Tremonton?

On the first day of September in Tremonton, Utah, sunrise is at 6:55 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:11 pm MDT.

How long on average sun shines in September in Tremonton?

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

What is the UV index intensity in September in Tremonton?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe 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
Tremonton, UT

Average temperature in September - Tremonton, UT
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in September: 51.3°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in September
Tremonton, UT

Average pressure in September - Tremonton, UT
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in September
Tremonton, UT

Average wind speed in September - Tremonton, UT
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

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Average humidity in September
Tremonton, UT

Average humidity in September - Tremonton, UT
  • Average humidity in September: 41%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (34%).

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Average rainfall in September
Tremonton, UT

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

The wettest month (with the highest rainfall) is February (2.05").
The driest month (with the least rainfall) is July (0.35").

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Average rainfall days in September
Tremonton, UT

Average rainfall days in September - Tremonton, UT
  • Average rainfall days in September: 8.3 days

The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is July (5.5 days).

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Average snowfall in September
Tremonton, UT

Average snowfall in September - Tremonton, UT
  • Average snowfall in September: 0.39"

The month with the highest snowfall is January (13.03").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Tremonton, UT

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

The month with the highest number of snowfall days is January (14.8 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
Tremonton, UT

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 9h and 5min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

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Average sunshine days in September
Tremonton, UT

Average sunshine days in September - Tremonton, UT
  • Average sunshine days in September: 19 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is February (10.1 days).

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Average UV index in September
Tremonton, UT

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in September
Tremonton, UT

Average cloud cover in September - Tremonton, UT
  • Average cloud cover in September: 14

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 10).

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Average visibility in September
Tremonton, UT

Average visibility in September - Tremonton, UT
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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Tremonton, Utah, USA

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