September weather forecast
Cluster Springs, VA

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Weather in September

September, the first month of the autumn in Cluster Springs, is still a warm month, with an average temperature varying between 81.5°F (27.5°C) and 61.9°F (16.6°C).

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from a tropical 88.2°F (31.2°C) in August to a warm 81.5°F (27.5°C). Cluster Springs's average low-temperature in the month of September is recorded at a refreshing 61.9°F (16.6°C).

Heat index

September's heat index is estimated at a tropical 86°F (30°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

The average relative humidity in September in Cluster Springs, Virginia, is 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 13 days and accumulates 1.77" (45mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:47 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:10 am and sunset at 7:00 pm EDT.

Sunshine

In Cluster Springs, the average sunshine in September is 8.8h.

UV index

In Cluster Springs, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What is the usual temperature for Cluster Springs in September?

During September, Cluster Springs experiences an average high-temperature of 81.5°F (27.5°C) and a low-temperature of 61.9°F (16.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is estimated at 86°F (30°C).

What is the average humidity in September in Cluster Springs?

In September, the average relative humidity is 74%.

What is the driest month in Cluster Springs?

The month with the least rainfall in Cluster Springs, Virginia, is September, when the rain falls for 13 days and typically collects 1.77" (45mm) of precipitation.

How much does it rain in Cluster Springs in September?

In Cluster Springs, in September, it is raining for 13 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow in Cluster Springs?

In Cluster Springs, Virginia, snow does not fall in May through October.

How many hours of daylight does Cluster Springs have in September?

The average day length in September in Cluster Springs, Virginia, is 12h and 24min.

When are sunrise and sunset in September in Cluster Springs?

On the first day of September, sunrise is at 6:47 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:00 pm EDT.

How long on average sun shines in September in Cluster Springs?

In September, the average sunshine duration is 8.8h.

How high is the UV index in September in Cluster Springs?

In September, the average daily maximum UV index in Cluster Springs, Virginia, is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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
Cluster Springs, VA

Average temperature in September - Cluster Springs, VA
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

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Average pressure in September
Cluster Springs, VA

Average pressure in September - Cluster Springs, VA
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Cluster Springs, VA

Average wind speed in September - Cluster Springs, VA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Cluster Springs, VA

Average humidity in September - Cluster Springs, VA
  • Average humidity in September: 74%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
Cluster Springs, VA

Average rainfall in September - Cluster Springs, VA
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in September
Cluster Springs, VA

Average rainfall days in September - Cluster Springs, VA
  • Average rainfall days in September: 13 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in September
Cluster Springs, VA

Average snowfall in September - Cluster Springs, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Cluster Springs, VA

Average snowfall days in September - Cluster Springs, VA
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Cluster Springs, VA

Average daylight in September / Average sunshine in September - Cluster Springs, VA
  • 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 5min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in September
Cluster Springs, VA

Average sunshine days in September - Cluster Springs, VA
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in September
Cluster Springs, VA

Average UV index in September - Cluster Springs, VA
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Cluster Springs, VA

Average cloud cover in September - Cluster Springs, VA
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 31).

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Average visibility in September
Cluster Springs, VA

Average visibility in September - Cluster Springs, VA
  • Average visibility in September: 5mi

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

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Cluster Springs, Virginia, USA

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