September weather forecast
Brigham City, UT

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Weather in September

The first month of the autumn, September, is still a warm month in Brigham City, Utah, with an average temperature ranging between min 50.4°F (10.2°C) and max 73.9°F (23.3°C).

Temperature

During Brigham City's transition into September, the average high-temperature lessens, moving from 83.7°F (28.7°C) in August to a still warm 73.9°F (23.3°C). Brigham City registers a pronounced decline from daytime peak temperatures, averaging a cool 50.4°F (10.2°C) lows in September.

Humidity

In Brigham City, the average relative humidity in September is 42%.

Rainfall

In Brigham City, in September, during 9.2 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Brigham City, during the entire year, the rain falls for 92.7 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

Months with snowfall in Brigham City are January through June, September through December. September is the first month it typically snows in Brigham City. Throughout September, in the average 0.4 snowfall days, it receives 0.71" (18mm) of snow. Throughout the year, there are 79.8 snowfall days, and 68.94" (1751mm) of snow is accumulated.

Daylight

In Brigham City, Utah, the average length of the day in September is 12h and 28min.
On the first day of September in Brigham City, sunrise is at 6:55 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:10 pm MDT.

Sunshine

The average sunshine in September in Brigham City is 9.8h.

UV index

In Brigham 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 unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 4 in September transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Brigham City in September?

The average high-temperature, in September, in Brigham City, is 73.9°F (23.3°C), while the average low-temperature is 50.4°F (10.2°C).

What is the average humidity in September in Brigham City?

In Brigham City, the average relative humidity in September is 42%.

How much does it rain in Brigham City in September?

In Brigham City, Utah, in September, it is raining for 9.2 days, with typically 1.1" (28mm) of accumulated precipitation.

When does it start snowing in Brigham City?

September is the first month it typically snows in Brigham City, Utah. Throughout September, in the average 0.4 snowfall days, it receives 0.71" (18mm) of snow.

What is the average length of the day in September in Brigham City?

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

When are sunrise and sunset in September in Brigham City?

In September, on the first day of the month, sunrise is at 6:55 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:10 pm MDT.

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

In Brigham City, the average sunshine duration in September is 9.8h.

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

In September, the average daily maximum UV index in Brigham City, Utah, is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Brigham City, UT

Average temperature in September - Brigham City, UT
  • Average high temperature in September: 73.9°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (31.1°F).

  • Average low temperature in September: 50.4°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in September
Brigham City, UT

Average pressure in September - Brigham City, 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
Brigham City, UT

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

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).

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Average humidity in September
Brigham City, UT

Average humidity in September - Brigham City, UT
  • Average humidity in September: 42%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in September
Brigham City, UT

Average rainfall in September - Brigham City, UT
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is January (1.85").
The driest month (with the least rainfall) is July (0.51").

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Average rainfall days in September
Brigham City, UT

Average rainfall days in September - Brigham City, UT
  • Average rainfall days in September: 9.2 days

The month with the highest number of rainy days is May (12.1 days).
The month with the least rainy days is January (3.7 days).

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Average snowfall in September
Brigham City, UT

Average snowfall in September - Brigham City, UT
  • Average snowfall in September: 0.71"

The month with the highest snowfall is January (15.63").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Brigham City, UT

Average snowfall days in September - Brigham City, UT
  • Average snowfall days in September: 0.4 days

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

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

Average daylight in September / Average sunshine in September - Brigham City, 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 12min).

  • Average sunshine in September: 9h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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Average sunshine days in September
Brigham City, UT

Average sunshine days in September - Brigham City, UT
  • Average sunshine days in September: 18 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is February (10.8 days).

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Average UV index in September
Brigham City, UT

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

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

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Average cloud cover in September
Brigham City, UT

Average cloud cover in September - Brigham City, UT
  • Average cloud cover in September: 15

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 11).

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Average visibility in September
Brigham City, UT

Average visibility in September - Brigham City, 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 months with the lowest visibility are January and February (4mi).

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Brigham City, Utah, USA

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