September weather forecast and climate
Catawba, NC

The first month of the autumn, September, is still a warm month in Catawba, North Carolina, with average temperature varying between 81.5°F (27.5°C) and 61.7°F (16.5°C).

Temperature

In September, the average high-temperature slightly decreases, from a hot 88°F (31.1°C) in August, to a moderately hot 81.5°F (27.5°C). In Catawba, the average low-temperature is 61.7°F (16.5°C).

Heat index

The average heat index is estimated at a hot 86.4°F (30.2°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, differences in body mass, height, and shape, wind). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In September, in Catawba, North Carolina, the rain falls for 13.5 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. In Catawba, during the entire year, the rain falls for 158.1 days and collects up to 31.81" (808mm) of precipitation.

Snowfall

April through October are months without snowfall in Catawba.

Daylight

The average length of the day in Catawba is 12.4h.

Sunshine

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

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Catawba?

In Catawba, in September, the average high-temperature is 81.5°F (27.5°C), and the average low-temperature is 61.7°F (16.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), that combines air temperature and relative humidity, in September is estimated at 86.4°F (30.2°C).

What is the average humidity in September in Catawba?

The average relative humidity in September is 74%.

How many days does it rain in September in Catawba?

In Catawba, in September, during 13.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow in Catawba?

April through October are months without snowfall.

How many hours of daylight does Catawba have in September?

In Catawba, North Carolina, the average length of the day in September is 12.4h.

How long on average sun shines in September in Catawba?

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

What is the UV index intensity in September in Catawba?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.
Average temperature in September - Catawba, NC
  • Average high temperature in September: 81.5°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 (46.9°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

Average pressure in September - Catawba, NC
  • Average pressure in September: 30.05"

The month with the highest atmospheric pressure is November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

Average wind speed in September - Catawba, NC
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September - Catawba, NC
  • Average humidity in September: 74%

Months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in September - Catawba, NC
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is October (1.89").

Average rainfall days in September - Catawba, NC
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is November (9 days).

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

The month with the highest snowfall is December (1.97").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is February (2 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 8.5h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 5.3h).

Average sunshine days in September - Catawba, NC
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September - Catawba, NC
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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

Months with the most cloud cover are February, March and December (Cloud cover 43).
Months with the least cloud cover are June and July (Cloud cover 30).

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

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