September weather forecast
McHarg, TN

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Weather in September

September, the first month of the autumn in McHarg, is also a moderately hot month, with an average temperature fluctuating between 79.3°F (26.3°C) and 59.5°F (15.3°C).

Temperature

McHarg records an average high-temperature of a still moderately hot 79.3°F (26.3°C) in September, closely mirroring the climate of the previous month. During September, the temperature tends to dip to an average of 59.5°F (15.3°C) at night.

Humidity

In September, the average relative humidity is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 14.9 days and typically collects 2.91" (74mm) of precipitation.

Snowfall

In McHarg, snow does not fall in May through September.

Daylight

In McHarg, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:10 am and sunset at 8:03 pm. On the last day of September, in McHarg, Tennessee, sunrise is at 7:32 am and sunset at 7:22 pm EDT.

Sunshine

In McHarg, the average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What is the temperature in September in McHarg?

In September, the average high-temperature and low-temperature in McHarg are 79.3°F (26.3°C) and 59.5°F (15.3°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 95°F (35°C).

What is the average humidity in September in McHarg?

In McHarg, Tennessee, the average relative humidity in September is 78%.

What is the driest month in McHarg?

September is the month with the least rainfall in McHarg. Rain falls for 14.9 days and accumulates 2.91" (74mm) of precipitation.

How many days does it rain in September in McHarg?

In McHarg, Tennessee, in September, during 14.9 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

When it does not snow in McHarg?

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

Does it snow in McHarg in September?

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

How many hours of daylight does McHarg have in September?

The average day length in September is 12h and 23min.

When are sunrise and sunset in September in McHarg?

On the first day of September in McHarg, sunrise is at 7:10 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:22 pm EDT.

How many hours of sunshine does McHarg have in September?

In September, the average sunshine duration in McHarg, Tennessee, is 8.5h.

What is the UV index reading in September in McHarg?

In McHarg, Tennessee, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
McHarg, TN

Average temperature in September - McHarg, TN
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 59.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure in September
McHarg, TN

Average pressure in September - McHarg, TN
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and 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
McHarg, TN

Average wind speed in September - McHarg, TN
  • Average wind speed in September: 3.9mph

The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in September
McHarg, TN

Average humidity in September - McHarg, TN
  • Average humidity in September: 78%

The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (76%).

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Average rainfall in September
McHarg, TN

Average rainfall in September - McHarg, TN
  • Average rainfall in September: 2.91"

The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is September (2.91").

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Average rainfall days in September
McHarg, TN

Average rainfall days in September - McHarg, TN
  • Average rainfall days in September: 14.9 days

The months with the highest number of rainy days are June and July (19.8 days).
The month with the least rainy days is November (11.3 days).

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Average snowfall in September
McHarg, TN

Average snowfall in September - McHarg, TN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
McHarg, TN

Average snowfall days in September - McHarg, TN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.5 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
McHarg, TN

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
McHarg, TN

Average sunshine days in September - McHarg, TN
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8 days).

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Average UV index in September
McHarg, TN

Average UV index in September - McHarg, TN
  • Average UV index in September: 5

The months with the highest UV index are May, 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
McHarg, TN

Average cloud cover in September - McHarg, TN
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 32).

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Average visibility in September
McHarg, TN

Average visibility in September - McHarg, TN
  • Average visibility in September: 5mi

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

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McHarg, Tennessee, USA

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