September weather forecast
Phenix, VA

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Weather in September

September, the first month of the autumn in Phenix, is still a warm month, with an average temperature fluctuating between 80.6°F (27°C) and 61.3°F (16.3°C).

Temperature

The beginning of September brings a slight decrease in the average high-temperature, transitioning from a tropical 87.4°F (30.8°C) in August to a moderately hot 80.6°F (27°C). September nights cool down to an average low-temperature of 61.3°F (16.3°C).

Heat index

In September, the average heat index is evaluated at 84.2°F (29°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

In Phenix, the average relative humidity in September is 75%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 1.69" (43mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:46 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:59 pm EDT.

Sunshine

In Phenix, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index in Phenix is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 5 in September translates into this advice:
Exercise prevention - Protecting skin and eyes from harm is required. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

During September, Phenix experiences an average high-temperature of 80.6°F (27°C) and a low-temperature of 61.3°F (16.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is evaluated at 84.2°F (29°C).

What is the average humidity in September in Phenix?

In September, the average relative humidity is 75%.

What is the driest month?

September is the month with the least rainfall in Phenix. Rain falls for 12.2 days and accumulates 1.69" (43mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 12.2 days. Throughout September, 1.69" (43mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Phenix have in September?

The average day length in September is 12h and 25min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:46 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:59 pm EDT.

How many hours of sunshine does Phenix have in September?

The average sunshine duration in September is 8.7h.

What is the UV index intensity in September?

In Phenix, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Phenix, VA

Average temperature in September - Phenix, VA
  • Average high temperature in September: 80.6°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.6°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

Average pressure in September
Phenix, VA

Average pressure in September - Phenix, 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 (29.96"Hg).

Average wind speed in September
Phenix, VA

Average wind speed in September - Phenix, VA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Phenix, VA

Average humidity in September - Phenix, VA
  • Average humidity in September: 75%

The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (69%).

Average rainfall in September
Phenix, VA

Average rainfall in September - Phenix, VA
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in September
Phenix, VA

Average rainfall days in September - Phenix, VA
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (9 days).

Average snowfall in September
Phenix, VA

Average snowfall in September - Phenix, VA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.52").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Phenix, VA

Average snowfall days in September - Phenix, VA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Phenix, VA

Average daylight in September / Average sunshine in September - Phenix, VA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 8h and 4min

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

Average sunshine days in September
Phenix, VA

Average sunshine days in September - Phenix, VA
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in September
Phenix, VA

Average UV index in September - Phenix, VA
  • 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).

Average cloud cover in September
Phenix, VA

Average cloud cover in September - Phenix, VA
  • Average cloud cover in September: 39

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Phenix, VA

Average visibility in September - Phenix, VA
  • Average visibility in September: 5mi

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

Phenix, Virginia, USA

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