September weather forecastAltamahaw, NC
September
Weather in September
The first month of the autumn, September, is still a warm month in Altamahaw, North Carolina, with an average temperature ranging between max 81.1°F (27.3°C) and min 62.2°F (16.8°C).Temperature
With September's onset, the weather reveals a slight temperature decrease, transitioning from a hot 87.3°F (30.7°C) in August to a moderately hot 81.1°F (27.3°C). An average minimum temperature of 62.2°F (16.8°C) marks the month of September.Heat index
The heat index for September is computed to be a tropical 86°F (30°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Altamahaw, in September, during 13.7 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Altamahaw, during the entire year, the rain falls for 160.6 days and collects up to 31.85" (809mm) of precipitation.Snowfall
In Altamahaw, snow does not fall in April through October.Daylight
In Altamahaw, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:02 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Altamahaw, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Altamahaw, NC
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Altamahaw, NC
- Average pressure in September: 30.04"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).
Average wind speed in September
Altamahaw, NC
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Altamahaw, NC
- Average humidity in September: 76%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Altamahaw, NC
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is October (1.89").
Average rainfall days in September
Altamahaw, NC
- Average rainfall days in September: 13.7 days
The months with the highest number of rainy days are May and August (17.3 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Altamahaw, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Altamahaw, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 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
Altamahaw, NC
- Average daylight in September: 12h and 24min
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 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Altamahaw, NC
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in September
Altamahaw, 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, February and December (UV index 2).
Average cloud cover in September
Altamahaw, NC
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in September
Altamahaw, NC
- 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).
