September weather forecastHarmony, NC
September
Weather in September
September, the first month of the autumn in Harmony, is also a moderately hot month, with an average temperature varying between 81.7°F (27.6°C) and 61.7°F (16.5°C).Temperature
The move into September indicates a slight reduction in the average high-temperature, down from August's hot 87.8°F (31°C) to a warm 81.7°F (27.6°C). Harmony temperatures generally rest at a low of 61.7°F (16.5°C) during the September nights.Heat index
The heat index value for September is appraised at a tropical 86°F (30°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
The average relative humidity in September in Harmony, North Carolina, is 74%.Rainfall
In Harmony, in September, it is raining for 12.5 days, with typically 2.05" (52mm) of accumulated precipitation. In Harmony, during the entire year, the rain falls for 157.9 days and collects up to 30.83" (783mm) of precipitation.Snowfall
In Harmony, snow does not fall in April through October.Daylight
In September, the average length of the day in Harmony is 12h and 23min.On the first day of September in Harmony, sunrise is at 6:55 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:07 pm EDT.
Sunshine
The average sunshine in September in Harmony is 8.6h.UV index
In September, the average daily maximum UV index in Harmony is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the UV index of 5 transforms into the following advice:
Be vigilant - Preventing sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harmony, NC
- Average high temperature in September: 81.7°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 (46.6°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 (30.9°F).
Average pressure in September
Harmony, 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
Harmony, NC
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Harmony, NC
- Average humidity in September: 74%
The months with the highest relative humidity are May and December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Harmony, NC
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is October (2.01").
Average rainfall days in September
Harmony, NC
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Harmony, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Harmony, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Harmony, 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 48min).
- Average sunshine in September: 8h and 36min
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 24min).
Average sunshine days in September
Harmony, NC
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Harmony, 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
Harmony, NC
- Average cloud cover in September: 35
The months with the most cloud cover are February, March and December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in September
Harmony, 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).





