September weather forecastHamilton, NC
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Hamilton, North Carolina, with an average temperature ranging between max 81.5°F (27.5°C) and min 64.9°F (18.3°C).Temperature
Hamilton marks the arrival of September with an average high-temperature of a warm 81.5°F (27.5°C), hardly different from August's 86.7°F (30.4°C). The average temperature during September nights is registered at a comfortable 64.9°F (18.3°C).Heat index
In September, the heat index is computed to be a tropical 87.8°F (31°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.One should consider that heat index numbers are for shaded settings and light wind. 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', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
May, August and September, with an average relative humidity of 79%, are the most humid months in Hamilton.Rainfall
In Hamilton, in September, during 8.6 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Hamilton, during the entire year, the rain falls for 92.6 days and collects up to 8.23" (209mm) of precipitation.Snowfall
March through November are months without snowfall in Hamilton.Daylight
The average length of the day in September in Hamilton, North Carolina, is 12h and 23min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:35 pm. On the last day of September, in Hamilton, sunrise is at 7:03 am and sunset at 6:53 pm EDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In Hamilton, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hamilton, NC
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 64.9°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 (33.3°F).
Average pressure in September
Hamilton, NC
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Hamilton, NC
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Hamilton, NC
- Average humidity in September: 79%
The months with the highest relative humidity are May, August and September (79%).
The months with the lowest relative humidity are January, March and April (75%).
Average rainfall in September
Hamilton, NC
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is August (1.14").
The driest months (with the least rainfall) are March and October (0.43").
Average rainfall days in September
Hamilton, NC
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is August (11.5 days).
The month with the least rainy days is October (4.7 days).
Average snowfall in September
Hamilton, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Hamilton, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Hamilton, 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: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Hamilton, NC
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is October (24.3 days).
The month with the least sunshine days is August (15.6 days).
Average UV index in September
Hamilton, NC
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Hamilton, NC
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Hamilton, NC
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
