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
A moderate decline in average high-temperatures is noted in September, moving from a hot 88.3°F (31.3°C) in August to a warm 82.8°F (28.2°C). Troy records an average nighttime low-temperature of 63.5°F (17.5°C) throughout September.Heat index
During September, the heat index is appraised at a tropical 89.6°F (32°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Troy, during September, the rain falls for 13.7 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, there are 157.3 rainfall days, and 30.35" (771mm) of precipitation is accumulated.Snowfall
In Troy, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:04 pm EDT.
Sunshine
In Troy, North Carolina, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Troy is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Troy?
What is the average humidity in September in Troy?
How much does it rain in Troy in September?
When it does not snow in Troy?
How many hours of daylight does Troy have in September?
When is the sunrise / sunset in September in Troy?
How long on average sun shines in September in Troy?
How high is the UV index in September in Troy?
Average temperature in September
Troy, NC
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Troy, NC
- Average pressure in September: 30.03"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
Troy, NC
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Troy, NC
- Average humidity in September: 75%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Troy, NC
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is October (1.85").
Average rainfall days in September
Troy, NC
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in September
Troy, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Troy, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Troy, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 0min
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
Troy, NC
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in September
Troy, 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
Troy, NC
- Average cloud cover in September: 35
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
Troy, NC
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Troy, North Carolina, USA
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