September weather forecast
Robbinsville, NC

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Robbinsville, North Carolina, with an average temperature varying between 77.4°F (25.2°C) and 56.5°F (13.6°C).

Temperature

The arrival of September sees a recorded average high-temperature of a still warm 77.4°F (25.2°C), showing little divergence from the previous month's conditions. During the September nights, an average temperature of 56.5°F (13.6°C) is observed.

Humidity

In September, the average relative humidity is 79%.

Rainfall

The month with the least rainfall in Robbinsville is September, when the rain falls for 16.7 days and typically collects 2.83" (72mm) of precipitation.

Snowfall

May through September are months without snowfall in Robbinsville, North Carolina.

Daylight

In September, the average length of the day in Robbinsville, North Carolina, is 12h and 23min.
On the first day of the month, sunrise is at 7:08 am and sunset at 8:01 pm. On the last day of September, in Robbinsville, sunrise is at 7:29 am and sunset at 7:20 pm EDT.

Sunshine

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

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 4 in September transforms into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Robbinsville?

The average high-temperature, in September, in Robbinsville, is 77.4°F (25.2°C), while the average low-temperature is 56.5°F (13.6°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 89.6°F (32°C).

What is the average humidity in September in Robbinsville?

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

What is the driest month in Robbinsville?

September is the month with the least rainfall in Robbinsville, North Carolina. Rain falls for 16.7 days and accumulates 2.83" (72mm) of precipitation.

How many days does it rain in September in Robbinsville?

In September, in Robbinsville, the rain falls for 16.7 days. Throughout September, 2.83" (72mm) of precipitation is accumulated.

When it does not snow in Robbinsville?

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

Does it snow in Robbinsville in September?

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

How many hours of daylight does Robbinsville have in September?

In September, the average day length is 12h and 23min.

When is the sunrise / sunset in September in Robbinsville?

In September, on the first day of the month, sunrise is at 7:08 am and sunset at 8:01 pm. On the last day of the month, in Robbinsville, North Carolina, sunrise is at 7:29 am and sunset at 7:20 pm EDT.

How many hours of sunshine does Robbinsville have in September?

The average sunshine duration in September in Robbinsville, North Carolina, is 8.5h.

How high is the UV index in September in Robbinsville?

The average daily maximum UV index in September in Robbinsville, North Carolina, is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's 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
Robbinsville, NC

Average temperature in September - Robbinsville, NC
  • Average high temperature in September: 77.4°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (44.2°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

Average pressure in September
Robbinsville, NC

Average pressure in September - Robbinsville, NC
  • Average pressure in September: 30.04"Hg

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

Average wind speed in September
Robbinsville, NC

Average wind speed in September - Robbinsville, NC
  • Average wind speed in September: 3.5mph

The windiest months (with the highest average wind speed) are February and April (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

Average humidity in September
Robbinsville, NC

Average humidity in September - Robbinsville, NC
  • Average humidity in September: 79%

The months with the highest relative humidity are February, March and December (80%).
The months with the lowest relative humidity are January and November (77%).

Average rainfall in September
Robbinsville, NC

Average rainfall in September - Robbinsville, NC
  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is July (5.12").
The driest month (with the least rainfall) is September (2.83").

Average rainfall days in September
Robbinsville, NC

Average rainfall days in September - Robbinsville, NC
  • Average rainfall days in September: 16.7 days

The month with the highest number of rainy days is July (22.6 days).
The month with the least rainy days is November (11.4 days).

Average snowfall in September
Robbinsville, NC

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

The month with the highest snowfall is February (3.35").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Robbinsville, NC

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

The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Robbinsville, NC

Average daylight in September / Average sunshine in September - Robbinsville, NC
  • 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 6min).

Average sunshine days in September
Robbinsville, NC

Average sunshine days in September - Robbinsville, NC
  • Average sunshine days in September: 10.8 days

The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is July (5.8 days).

Average UV index in September
Robbinsville, NC

Average UV index in September - Robbinsville, NC
  • 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).

Average cloud cover in September
Robbinsville, NC

Average cloud cover in September - Robbinsville, NC
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 33).

Average visibility in September
Robbinsville, NC

Average visibility in September - Robbinsville, NC
  • Average visibility in September: 5mi

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

Robbinsville, North Carolina, USA

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