September weather forecast
Emmett, ID

Weather in September

September, the first month of the autumn in Emmett, is still a warm month, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 53.4°F (11.9°C).

Temperature

In Emmett, Idaho, the average high-temperature in September drops from a tropical 89.2°F (31.8°C) in August to a moderately hot 78.1°F (25.6°C). In September, the average low-temperature is 53.4°F (11.9°C).

Humidity

In Emmett, the average relative humidity in September is 38%.

Rainfall

In September, in Emmett, the rain falls for 5 days. Throughout September, 0.31" (8mm) of precipitation is accumulated. Throughout the year, in Emmett, there are 91.7 rainfall days, and 10.28" (261mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Emmett.

Daylight

In Emmett, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 7:09 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:28 pm MDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In Emmett, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Emmett?

In September, the average relative humidity in Emmett is 38%.

How much does it rain in Emmett in September?

In September, in Emmett, Idaho, the rain falls for 5 days. Throughout September, 0.31" (8mm) of precipitation is accumulated.

When it does not snow in Emmett?

May through October are months without snowfall in Emmett.

How many hours of daylight does Emmett have in September?

In September, the average day length is 12h and 29min.

When is the sunrise / sunset in September in Emmett?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 8:22 pm. On the last day of the month, in Emmett, sunrise is at 7:42 am and sunset at 7:28 pm MDT.

How long on average sun shines in September in Emmett?

In Emmett, the average sunshine duration in September is 9.5h.

How high is the UV index in September in Emmett?

The average daily maximum UV index in September in Emmett, Idaho, is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.

Average temperature in September
Emmett, ID

Average temperature in September - Emmett, ID
  • Average high temperature in September: 25.6°C

The warmest month (with the highest average high temperature) is July (32.2°C).
The month with the lowest average high temperature is December (1.6°C).

  • Average low temperature in September: 11.9°C

The month with the highest average low temperature is August (15.7°C).
The coldest month (with the lowest average low temperature) is December (-5.1°C).

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Average pressure in September
Emmett, ID

Average pressure in September - Emmett, ID
  • Average pressure in September: 1014.3mbar

The month with the highest atmospheric pressure is January (1024.2mbar).
The month with the lowest atmospheric pressure is June (1012.9mbar).

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Average wind speed in September
Emmett, ID

Average wind speed in September - Emmett, ID
  • Average wind speed in September: 7.9km/h

The windiest month (with the highest average wind speed) is April (10.4km/h).
The calmest month (with the lowest average wind speed) is January (6.8km/h).

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Average humidity in September
Emmett, ID

Average humidity in September - Emmett, ID
  • Average humidity in September: 38%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (31%).

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Average rainfall in September
Emmett, ID

Average rainfall in September - Emmett, ID
  • Average rainfall in September: 8mm

The wettest month (with the highest rainfall) is March (39mm).
The driest month (with the least rainfall) is July (4mm).

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Average rainfall days in September
Emmett, ID

Average rainfall days in September - Emmett, ID
  • Average rainfall days in September: 5 days

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.2 days).

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Average snowfall in September
Emmett, ID

Average snowfall in September - Emmett, ID
  • Average snowfall in September: 0mm

The month with the highest snowfall is December (110mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in September
Emmett, ID

Average snowfall days in September - Emmett, ID
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Emmett, ID

Average daylight in September / Average sunshine in September - Emmett, ID
  • Average daylight in September: 12h and 29min

The month with the longest days is June (Average daylight: 15h and 25min).
The month with the shortest days is December (Average daylight: 8h and 58min).

  • Average sunshine in September: 9.5h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in September
Emmett, ID

Average sunshine days in September - Emmett, ID
  • Average sunshine days in September: 23.7 days

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (15.3 days).

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Average UV index in September
Emmett, ID

Average UV index in September - Emmett, ID
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 7).
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
Emmett, ID

Average cloud cover in September - Emmett, ID
  • Average cloud cover in September: 14

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in September
Emmett, ID

Average visibility in September - Emmett, ID
  • Average visibility in September: 10km

The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (8km).

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