September weather forecast
Crossville, TN

Weather in September

The first month of the autumn, September, is still a warm month in Crossville, Tennessee, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 58.3°F (14.6°C).

Temperature

In Crossville, the average high-temperature in September marginally drops from a moderately hot 83.5°F (28.6°C) in August to a still warm 77.9°F (25.5°C). In September, in Crossville, the average low-temperature is 58.3°F (14.6°C).

Humidity

The average relative humidity in September in Crossville is 79%.

Rainfall

In September, in Crossville, Tennessee, the rain falls for 16.2 days. Throughout September, 3.43" (87mm) of precipitation is accumulated. In Crossville, during the entire year, the rain falls for 198.6 days and collects up to 51.73" (1314mm) of precipitation.

Snowfall

In Crossville, snow does not fall in May through October.

Daylight

In Crossville, the average length of the day in September is 12h and 23min.
On the first day of September in Crossville, Tennessee, sunrise is at 6:12 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 6:25 pm CDT.

Sunshine

The average sunshine in September is 7.8h.

UV index

In Crossville, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
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 solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Crossville?

The average relative humidity in September in Crossville, Tennessee, is 79%.

How much does it rain in Crossville in September?

In Crossville, in September, during 16.2 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

When it does not snow in Crossville?

May through October are months without snowfall in Crossville, Tennessee.

What is the average length of the day in September in Crossville?

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

When is the sunrise / sunset in September in Crossville?

In September, on the first day of the month, sunrise is at 6:12 am and sunset at 7:07 pm. On the last day of the month, in Crossville, Tennessee, sunrise is at 6:34 am and sunset at 6:25 pm CDT.

How many hours of sunshine does Crossville have in September?

The average sunshine duration in September in Crossville is 7.8h.

How high is the UV index in September in Crossville?

In September, the average daily maximum UV index 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
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Crossville, TN

Average temperature in September - Crossville, TN
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).

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Average pressure in September
Crossville, TN

Average pressure in September - Crossville, 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 (29.98"Hg).

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Average wind speed in September
Crossville, TN

Average wind speed in September - Crossville, TN
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

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Average humidity in September
Crossville, TN

Average humidity in September - Crossville, TN
  • Average humidity in September: 79%

The months with the highest relative humidity are February, March and December (81%).
The month with the lowest relative humidity is November (77%).

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Average rainfall in September
Crossville, TN

Average rainfall in September - Crossville, TN
  • Average rainfall in September: 3.43"

The wettest month (with the highest rainfall) is July (5.51").
The driest month (with the least rainfall) is November (3.15").

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Average rainfall days in September
Crossville, TN

Average rainfall days in September - Crossville, TN
  • Average rainfall days in September: 16.2 days

The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (11.2 days).

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Average snowfall in September
Crossville, TN

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

The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Crossville, TN

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

The month with the highest number of snowfall days is January (8.5 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
Crossville, TN

Average daylight in September / Average sunshine in September - Crossville, TN
  • Average daylight in September: 12h and 23min

The month with the longest days is June (Average daylight: 14h and 34min).
The month with the shortest days is December (Average daylight: 9h and 46min).

  • Average sunshine in September: 7h and 48min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

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Average sunshine days in September
Crossville, TN

Average sunshine days in September - Crossville, TN
  • Average sunshine days in September: 11.6 days

The month with the most sunshine days is October (16.2 days).
The months with the least sunshine days are June and July (7.8 days).

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Average UV index in September
Crossville, TN

Average UV index in September - Crossville, TN
  • Average UV index in September: 4

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
Crossville, TN

Average cloud cover in September - Crossville, TN
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is June (Cloud cover 35).

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Average visibility in September
Crossville, TN

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

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

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