September weather forecast
Coalville, UT

Weather in September

September, the first month of the autumn in Coalville, is still a pleasant month, with temperature in the range of an average low of 43.5°F (6.4°C) and an average high of 69.4°F (20.8°C).

Temperature

In Coalville, the average high-temperature in September decreases from a warm 78.8°F (26°C) in August to a pleasant 69.4°F (20.8°C). In Coalville, in September, the average low-temperature is 43.5°F (6.4°C).

Humidity

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

Rainfall

In Coalville, Utah, it is raining for 7.4 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Coalville, there are 95 rainfall days, and 13.54" (344mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Coalville are January through June, September through December. September is the first month it typically snows in Coalville. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. In Coalville, during the entire year, snow falls for 81.1 days and aggregates up to 64.61" (1641mm) of snow.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:52 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:09 pm MDT.

Sunshine

In September, the average sunshine is 10.2h.

UV index

In September, the average daily maximum UV index in Coalville is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in September in Coalville?

In September, the average relative humidity is 48%.

How much does it rain in Coalville in September?

In September, in Coalville, Utah, the rain falls for 7.4 days. Throughout September, 0.67" (17mm) of precipitation is accumulated.

When does it start to snow in Coalville?

September is the first month it typically snows in Coalville. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow.

How many hours of daylight does Coalville have in September?

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

When are sunrise and sunset in September in Coalville?

In September, on the first day of the month, sunrise is at 6:52 am and sunset at 7:58 pm. On the last day of the month, in Coalville, Utah, sunrise is at 7:21 am and sunset at 7:09 pm MDT.

How many hours of sunshine does Coalville have in September?

In Coalville, the average sunshine duration in September is 10.2h.

What is the UV index intensity in September in Coalville?

In Coalville, Utah, the average daily maximum UV index in September 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Coalville, UT

Average temperature in September - Coalville, UT
  • Average high temperature in September: 69.4°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is December (28.8°F).

  • Average low temperature in September: 43.5°F

The month with the highest average low temperature is July (50.9°F).
The coldest month (with the lowest average low temperature) is January (11.5°F).

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Average pressure in September
Coalville, UT

Average pressure in September - Coalville, UT
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Coalville, UT

Average wind speed in September - Coalville, UT
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

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Average humidity in September
Coalville, UT

Average humidity in September - Coalville, UT
  • Average humidity in September: 48%

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

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Average rainfall in September
Coalville, UT

Average rainfall in September - Coalville, UT
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is July (0.39").

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Average rainfall days in September
Coalville, UT

Average rainfall days in September - Coalville, UT
  • Average rainfall days in September: 7.4 days

The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in September
Coalville, UT

Average snowfall in September - Coalville, UT
  • Average snowfall in September: 0.12"

The month with the highest snowfall is February (13.5").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Coalville, UT

Average snowfall days in September - Coalville, UT
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is February (15.5 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
Coalville, UT

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

The month with the longest days is June (Average daylight: 15h and 4min).
The month with the shortest days is December (Average daylight: 9h and 17min).

  • Average sunshine in September: 10h and 12min

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 18min).

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Average sunshine days in September
Coalville, UT

Average sunshine days in September - Coalville, UT
  • Average sunshine days in September: 18 days

The month with the most sunshine days is July (20.5 days).
The month with the least sunshine days is February (10.9 days).

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Average UV index in September
Coalville, UT

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

The 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
Coalville, UT

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

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 10).

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Average visibility in September
Coalville, UT

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

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

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