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
September is characterized by a mild reduction in the average high-temperature, from a tropical 87.4°F (30.8°C) in August to a moderately hot 81.7°F (27.6°C). September brings with it a nighttime average temperature of 63°F (17.2°C).Heat index
The heat index value during September is estimated at a hot 86°F (30°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. 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 extremely significant for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
The average relative humidity in September in Hillsborough is 75%.Rainfall
In Hillsborough, during September, the rain falls for 13.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Hillsborough, during the entire year, the rain falls for 157.7 days and collects up to 32.32" (821mm) of precipitation.Snowfall
In Hillsborough, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of September in Hillsborough, sunrise is at 6:48 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 7:01 pm EDT.
Sunshine
In Hillsborough, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Hillsborough is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 5 during September leads to these advisories:
Take necessary precautions - Suggestions to elude sunburn are provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the usual temperature for Hillsborough in September?
What is the average humidity in September in Hillsborough?
How many days does it rain in September in Hillsborough?
When it does not snow in Hillsborough?
How many hours of daylight does Hillsborough have in September?
What time are sunrise and sunset in September in Hillsborough?
How many hours of sunshine does Hillsborough have in September?
What is the UV index reading in September in Hillsborough?
Average temperature in September
Hillsborough, 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 (46.9°F).
- Average low temperature in September: 63°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in September
Hillsborough, NC
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Hillsborough, NC
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Hillsborough, 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
Hillsborough, NC
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is October (2.01").
Average rainfall days in September
Hillsborough, NC
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in September
Hillsborough, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Hillsborough, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Hillsborough, 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 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Hillsborough, NC
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in September
Hillsborough, 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 and December (UV index 2).
Average cloud cover in September
Hillsborough, NC
- Average cloud cover in September: 38
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Hillsborough, 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).
Hillsborough, North Carolina, USA
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