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 signals a slight drop in average high-temperature, sliding from August's hot 87.3°F (30.7°C) to a warm 81.1°F (27.3°C). An average low-temperature of 62.2°F (16.8°C) is observed during September nights.Heat index
The heat index for September is computed to be a tropical 86°F (30°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
The average relative humidity in September is 76%.Rainfall
In September, in Haw River, the rain falls for 13.7 days. Throughout September, 2.36" (60mm) of precipitation is accumulated. In Haw River, during the entire year, the rain falls for 160.6 days and collects up to 31.85" (809mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Haw River is 12h and 24min.On the first day of the month, sunrise is at 6:49 am and sunset at 7:44 pm. On the last day of September, in Haw River, sunrise is at 7:12 am and sunset at 7:02 pm EDT.
Sunshine
In Haw River, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Haw River is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. Around midday, solar radiation is most harmful; hence, exposure should be limited. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Haw River?
What is the average humidity in September in Haw River?
How many days does it rain in September in Haw River?
When it does not snow in Haw River?
How many hours of daylight does Haw River have in September?
When are sunrise and sunset in September in Haw River?
How many hours of sunshine does Haw River have in September?
How high is the UV index in September in Haw River?
Average temperature in September
Haw River, 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 (46.8°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Haw River, 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 (29.97"Hg).
Average wind speed in September
Haw River, NC
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Haw River, NC
- Average humidity in September: 76%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Haw River, NC
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is October (1.89").
Average rainfall days in September
Haw River, NC
- Average rainfall days in September: 13.7 days
The months with the highest number of rainy days are May and August (17.3 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Haw River, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Haw River, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 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
Haw River, 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 months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Haw River, NC
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in September
Haw River, 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
Haw River, NC
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in September
Haw River, NC
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Haw River, North Carolina, USA
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