September weather forecast and climate
Duchesne, UT

Weather in September

September, the first month of the autumn, in Duchesne, is still a pleasant month, with average temperature varying between 68.9°F (20.5°C) and 46.6°F (8.1°C).

Temperature

In Duchesne, Utah, the average high-temperature slightly decreases, from a warm 76.6°F (24.8°C) in August, to an agreeable 68.9°F (20.5°C). The average low-temperature, in Duchesne, is 46.6°F (8.1°C).

Humidity

In Duchesne, the average relative humidity is 43%.

Rainfall

In September, in Duchesne, Utah, the rain falls for 10.3 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. In Duchesne, during the entire year, the rain falls for 124.1 days and collects up to 12.87" (327mm) of precipitation.

Snowfall

In Duchesne snow does not fall in June through September.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine is 10.5h.

UV index

In September, the average daily maximum UV index in Duchesne is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against the 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.
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FAQ

What is the average humidity in September in Duchesne?

The average relative humidity in September is 43%.

How much does it rain in Duchesne in September?

In Duchesne, in September, during 10.3 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

When it does not snow in Duchesne?

June through September are months without snowfall in Duchesne.

Does it snow in Duchesne in September?

In Duchesne, Utah, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Duchesne have in September?

The average length of the day in September in Duchesne is 12.4h.

How long on average sun shines in September in Duchesne?

In Duchesne, the average sunshine in September is 10.5h.

What is the UV index intensity in September in Duchesne?

In September, the average daily maximum UV index in Duchesne, Utah, is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in September
Duchesne, UT

Average temperature in September - Duchesne, UT
  • Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is July (79.5°F).
Months with the lowest average high temperature are January and December (28.9°F).

  • Average low temperature in September: 46.6°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

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Average pressure in September
Duchesne, UT

Average pressure in September - Duchesne, UT
  • Average pressure in September: 29.96"

The month with the highest atmospheric pressure is January (30.27").
The month with the lowest atmospheric pressure is June (29.86").

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Average wind speed in September
Duchesne, UT

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

The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in September
Duchesne, UT

Average humidity in September - Duchesne, UT
  • Average humidity in September: 43%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is June (36%).

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Average rainfall in September
Duchesne, UT

Average rainfall in September - Duchesne, UT
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is May (1.65").
The driest month (with the least rainfall) is November (0.71").

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Average rainfall days in September
Duchesne, UT

Average rainfall days in September - Duchesne, UT
  • Average rainfall days in September: 10.3 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is November (6.2 days).

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Average snowfall in September
Duchesne, UT

Average snowfall in September - Duchesne, UT
  • Average snowfall in September: 0"

The month with the highest snowfall is February (7.24").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Duchesne, UT

Average snowfall days in September - Duchesne, UT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (11.8 days).
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
Duchesne, UT

Average daylight in September / Average sunshine in September - Duchesne, UT
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 10.5h

The month with the most sunshine is June (Average sunshine: 11.9h).
The month with the least sunshine is January (Average sunshine: 6.4h).

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Average sunshine days in September
Duchesne, UT

Average sunshine days in September - Duchesne, UT
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is April (12.4 days).

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Average UV index in September
Duchesne, UT

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

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in September
Duchesne, UT

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

The month with the most cloud cover is February (Cloud cover 33).
Months with the least cloud cover are June and September (Cloud cover 13).

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Average visibility in September
Duchesne, UT

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

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

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