Boone
North Carolina, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Boone, NC

The eye-catching view over the townscape of the scenic city of Boone, North Carolina, amid neon lights, scenic hilly landscape, and brown trees in the fall
The eye-catching view over the townscape of the scenic city of Boone, North Carolina, amid neon lights, scenic hilly landscape, and brown trees in the fall
September, the first month of the autumn, in Boone, is also an agreeable month, with average temperature fluctuating between 72.1°F (22.3°C) and 50.2°F (10.1°C).

Temperature

In September, the average high-temperature slightly decreases, from a moderately hot 78.1°F (25.6°C) in August, to a pleasant 72.1°F (22.3°C). In September, the average low-temperature is 50.2°F (10.1°C).

Rainfall

In September, in Boone, the rain falls for 10 days. Throughout September, 4.4" (112.8mm) of precipitation is accumulated. In Boone, during the entire year, the rain falls for 139 days and collects up to 52.7" (1339.5mm) of precipitation.

Snowfall

In Boone, in September, it doesn't snow. In October, it regularly snows. In Boone, during the entire year, snow aggregates up to 34.7" (881.3mm).

Daylight

In Boone, North Carolina, the average length of the day is 12.4h.

Sunshine

In September, the average sunshine is 7h.

UV index

In September, the average daily maximum UV index in Boone is 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unsafe exposure to the UV radiation for the average person.
In September, the average maximum UV index of 8 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.

What is the temperature in September in Boone?

In September, in Boone, the average high-temperature is 72.1°F (22.3°C), and the average low-temperature is 50.2°F (10.1°C).

How much does it rain in Boone in September?

In Boone, North Carolina, during September, the rain falls for 10 days and regularly aggregates up to 4.4" (112.8mm) of precipitation.

Does it snow in Boone in September?

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

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

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

How long on average sun shines in September in Boone?

In Boone, the average sunshine in September is 7h.

How high is the UV index in September in Boone?

In September, the average daily maximum UV index in Boone, North Carolina, is 8. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays.
Average temperature in September - Boone, NC
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is July (78.9°F).
The month with the lowest average high temperature is January (41.6°F).

  • Average low temperature in September: 50.1°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average rainfall in September - Boone, NC
  • Average rainfall in September: 4.4"

Wettest months (with the highest rainfall) are June and August (5.1").
The driest month (with the lowest rainfall) is October (3.6").

Average rainfall days in September - Boone, NC
  • Average rainfall days in September: 10 days

Months with the highest number of rainy days are June and July (13.5 days).
The month with the lowest number of rainy days is October (9.1 days).

Average snowfall in September - Boone, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is January (10.3").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in September - Boone, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.5 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Boone, NC
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 7h

The month with most sunshine is June (Average sunshine: 9h).
Months with least sunshine are January, November and December (Average sunshine: 5).

Average UV index in September - Boone, NC
  • Average UV index in September: 8

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).