September weather forecast
Mountain Home, TN

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Weather in September

September, the first month of the autumn in Mountain Home, is still a warm month, with an average temperature varying between 54.9°F (12.7°C) and 77.5°F (25.3°C).

Temperature

September begins with an average high-temperature of a still warm 77.5°F (25.3°C), reflecting close similarity to the preceding month. September in Mountain Home presents a pronounced difference from daytime highs, with a consistent average low-temperature of 54.9°F (12.7°C).

Humidity

In Mountain Home, the average relative humidity in September is 77%.

Rainfall

September is the month with the least rainfall. Rain falls for 15.5 days and accumulates 1.77" (45mm) of precipitation.

Snowfall

May through September are months without snowfall in Mountain Home.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of the month, sunrise is at 7:01 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September in Mountain Home is 8.7h.

UV index

The average daily maximum UV index in September in Mountain Home is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In September, a regular UV index of 4 translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What are the temperatures in Mountain Home in September?

In September, the average high-temperature and low-temperature are 77.5°F (25.3°C) and 54.9°F (12.7°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in September in Mountain Home?

The average relative humidity in September in Mountain Home, Tennessee, is 77%.

What is the driest month in Mountain Home?

The month with the least rainfall in Mountain Home, Tennessee, is September, when the rain falls for 15.5 days and typically collects 1.77" (45mm) of precipitation.

How many days does it rain in September in Mountain Home?

In Mountain Home, in September, it is raining for 15.5 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow in Mountain Home?

In Mountain Home, Tennessee, snow does not fall in May through September.

Does it snow in Mountain Home in September?

In Mountain Home, Tennessee, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Mountain Home?

In September, the average day length in Mountain Home, Tennessee, is 12h and 24min.

When are sunrise and sunset in September in Mountain Home?

On the first day of September in Mountain Home, Tennessee, sunrise is at 7:01 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm EDT.

How long on average sun shines in September in Mountain Home?

In Mountain Home, Tennessee, the average sunshine duration in September is 8.7h.

How high is the UV index in September in Mountain Home?

The average daily maximum UV index in September in Mountain Home, Tennessee, is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Mountain Home, TN

Average temperature in September - Mountain Home, TN
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in September: 54.9°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).

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Average pressure in September
Mountain Home, TN

Average pressure in September - Mountain Home, TN
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in September
Mountain Home, TN

Average wind speed in September - Mountain Home, TN
  • Average wind speed in September: 4mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in September
Mountain Home, TN

Average humidity in September - Mountain Home, TN
  • Average humidity in September: 77%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in September
Mountain Home, TN

Average rainfall in September - Mountain Home, TN
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in September
Mountain Home, TN

Average rainfall days in September - Mountain Home, TN
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (11.2 days).

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Average snowfall in September
Mountain Home, TN

Average snowfall in September - Mountain Home, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Mountain Home, TN

Average snowfall days in September - Mountain Home, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.9 days).
The 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
Mountain Home, TN

Average daylight in September / Average sunshine in September - Mountain Home, TN
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).

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Average sunshine days in September
Mountain Home, TN

Average sunshine days in September - Mountain Home, TN
  • Average sunshine days in September: 11.9 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is July (8.3 days).

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Average UV index in September
Mountain Home, TN

Average UV index in September - Mountain Home, TN
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Mountain Home, TN

Average cloud cover in September - Mountain Home, TN
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 31).

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Average visibility in September
Mountain Home, TN

Average visibility in September - Mountain Home, TN
  • Average visibility in September: 5mi

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

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Mountain Home, Tennessee, USA

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