Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With September's onset, the weather reveals a slight temperature decrease, transitioning from a hot 87.4°F (30.8°C) in August to a warm 81.1°F (27.3°C). An average nighttime temperature of 61.5°F (16.4°C) is witnessed in Colfax throughout September.Heat index
Throughout September, the heat index is evaluated at a tropical 86°F (30°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Colfax, in September, during 13 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, in Colfax, there are 159.5 rainfall days, and 31.57" (802mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Colfax, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:04 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In Colfax, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Colfax in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Colfax have in September?
How high is the UV index in September?
Average temperature in September
Colfax, 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 (45.9°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Colfax, 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
Colfax, NC
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Colfax, 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
Colfax, NC
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is October (2.05").
Average rainfall days in September
Colfax, NC
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Colfax, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Colfax, 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
Colfax, NC
- Average daylight in September: 12h and 2min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Colfax, NC
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is August (11.8 days).
Average UV index in September
Colfax, 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
Colfax, NC
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Colfax, 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).
Colfax, North Carolina, USA
Weather forecast for your location
2. Allow the app to use your location