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
The average high-temperature slightly decreases in September, shifting from a tropical 87.3°F (30.7°C) in August to a moderately hot 81.9°F (27.7°C). An average low-temperature of 64.9°F (18.3°C) is observed during the September nights.Heat index
The heat index for September is calculated to be a tropical 87.8°F (31°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The months with the highest humidity are May, August, September and December, with an average relative humidity of 79%.Rainfall
In Colerain, in September, it is raining for 9.5 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 120.6 rainfall days, and 12.44" (316mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall in Colerain.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:39 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:51 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In Colerain, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily UV index of 5 turns into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What are the most humid months?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Colerain have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Colerain?
Average temperature in September
Colerain, NC
- Average high temperature in September: 81.9°F
The warmest month (with the highest average high temperature) is July (88.7°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 (70.5°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in September
Colerain, NC
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are November and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Colerain, NC
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Colerain, NC
- Average humidity in September: 79%
The months with the highest relative humidity are May, August, September and December (79%).
The month with the lowest relative humidity is January (75%).
Average rainfall in September
Colerain, NC
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is June (1.61").
The driest months (with the least rainfall) are January and December (0.71").
Average rainfall days in September
Colerain, NC
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (13.5 days).
The months with the least rainy days are January and November (6.9 days).
Average snowfall in September
Colerain, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Colerain, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 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
Colerain, 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 42min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Colerain, NC
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Colerain, NC
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Colerain, NC
- Average cloud cover in September: 40
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 34).
Average visibility in September
Colerain, NC
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).
Colerain, North Carolina, USA
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