September weather forecast
Catawba, SC

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Weather in September

September, the first month of the autumn in Catawba, is still a warm month, with an average temperature fluctuating between 83.3°F (28.5°C) and 64.2°F (17.9°C).

Temperature

As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a tropical 88.7°F (31.5°C) to a warm 83.3°F (28.5°C). Catawba usually reports an average low-temperature of 64.2°F (17.9°C) during the month of September.

Heat index

The heat index for September is estimated at a tropical 89.6°F (32°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

In Catawba, the average relative humidity in September is 72%.

Rainfall

September and October are months with the least rain when the rain falls for 11.5 days and typically aggregates up to 1.81" (46mm) of rain.

Snowfall

April through November are months without snowfall in Catawba, South Carolina.

Daylight

In Catawba, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:57 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:08 pm EDT.

Sunshine

In Catawba, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Catawba is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 5 in September leads to these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

How hot does it get in Catawba in September?

September temperatures in Catawba vary between a high-temperature of 83.3°F (28.5°C) and a low-temperature of 64.2°F (17.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in September in Catawba?

In September, the average relative humidity in Catawba, South Carolina, is 72%.

What is the driest month in Catawba?

The months with the least rainfall in Catawba, South Carolina, are September and October Rain falls for 11.5 days and accumulates 1.81" (46mm) of rain.

How many days does it rain in September in Catawba?

In Catawba, South Carolina, during September, the rain falls for 11.5 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow in Catawba?

In Catawba, snow does not fall in April through November.

How many hours of daylight does Catawba have in September?

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

What time are sunrise and sunset in September in Catawba?

On the first day of September, sunrise is at 6:57 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:08 pm EDT.

How long on average sun shines in September in Catawba?

The average sunshine duration in September in Catawba, South Carolina, is 8.6h.

How high is the UV index in September in Catawba?

In Catawba, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from 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
Catawba, SC

Average temperature in September - Catawba, SC
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in September
Catawba, SC

Average pressure in September - Catawba, SC
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in September
Catawba, SC

Average wind speed in September - Catawba, SC
  • Average wind speed in September: 5.4mph

The windiest months (with the highest average wind speed) are February and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Catawba, SC

Average humidity in September - Catawba, SC
  • Average humidity in September: 72%

The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in September
Catawba, SC

Average rainfall in September - Catawba, SC
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is August (3.23").
The driest months (with the least rainfall) are September and October (1.81").

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Average rainfall days in September
Catawba, SC

Average rainfall days in September - Catawba, SC
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall in September
Catawba, SC

Average snowfall in September - Catawba, SC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Catawba, SC

Average snowfall days in September - Catawba, SC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Catawba, SC

Average daylight in September / Average sunshine in September - Catawba, SC
  • 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 54min).

  • 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 18min).

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Average sunshine days in September
Catawba, SC

Average sunshine days in September - Catawba, SC
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in September
Catawba, SC

Average UV index in September - Catawba, SC
  • 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 and December (UV index 2).

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Average cloud cover in September
Catawba, SC

Average cloud cover in September - Catawba, SC
  • Average cloud cover in September: 34

The months with the most cloud cover are February and December (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Catawba, SC

Average visibility in September - Catawba, SC
  • Average visibility in September: 6mi

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

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Catawba, South Carolina, USA

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