September weather forecastLake Norman of Catawba, NC
September
Weather in September
September, the first month of the autumn in Lake Norman of Catawba, is still a warm month, with an average temperature fluctuating between 61.7°F (16.5°C) and 81.5°F (27.5°C).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a tropical 88°F (31.1°C) in August to a warm 81.5°F (27.5°C). In September, the recorded average low-temperature in Lake Norman of Catawba is a refreshing 61.7°F (16.5°C).Heat index
In September, the heat index is computed to be a tropical 86°F (30°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In Lake Norman of Catawba, North Carolina, the average relative humidity in September is 74%.Rainfall
In Lake Norman of Catawba, during September, the rain falls for 13.5 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Lake Norman of Catawba, North Carolina, during the entire year, the rain falls for 158.1 days and collects up to 31.81" (808mm) of precipitation.Snowfall
In Lake Norman of Catawba, North Carolina, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:08 pm EDT.
Sunshine
In Lake Norman of Catawba, the average sunshine in September is 8.5h.UV index
In Lake Norman of Catawba, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lake Norman of 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
Lake Norman of Catawba, NC
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Lake Norman of 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
Lake Norman of Catawba, NC
- Average humidity in September: 74%
The 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
Lake Norman of 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
Lake Norman of 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
Lake Norman of Catawba, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.97").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Lake Norman of Catawba, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2 days).
The 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
Lake Norman of Catawba, NC
- Average daylight in September: 12h and 24min
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 30min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Lake Norman of 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
Lake Norman of Catawba, NC
- 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 and December (UV index 2).
Average cloud cover in September
Lake Norman of Catawba, NC
- Average cloud cover in September: 35
The months with the most cloud cover are February, March and December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in September
Lake Norman of Catawba, NC
- 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).
