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
Smithfield marks the onset of September with an average high-temperature of a moderately hot 81.5°F (27.5°C), a subtle shift from August's 86.5°F (30.3°C). During the month of September, Smithfield experiences a steady low-temperature average of 64.9°F (18.3°C).Heat index
During September, the heat index is computed to be a tropical 87.8°F (31°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The months with the highest humidity are May, August and September, with an average relative humidity of 77%.Rainfall
In Smithfield, in September, it is raining for 10.1 days, with typically 0.79" (20mm) of accumulated precipitation. In Smithfield, North Carolina, during the entire year, the rain falls for 115.7 days and collects up to 11.06" (281mm) of precipitation.Snowfall
In Smithfield, snow does not fall in March through December.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September in Smithfield, sunrise is at 6:46 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:58 pm EDT.
Sunshine
In September, the average sunshine in Smithfield is 9h.UV index
In Smithfield, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 5 in September transforms into this advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What is the average September temperature in Smithfield?
What is the most humid month in Smithfield?
What is the average humidity in September in Smithfield?
How many days does it rain in September in Smithfield?
When it does not snow in Smithfield?
What is the average length of the day in September in Smithfield?
When is the sunrise / sunset in September in Smithfield?
How many hours of sunshine does Smithfield have in September?
What is the UV index reading in September in Smithfield?
Average temperature in September
Smithfield, NC
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (48.9°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in September
Smithfield, NC
- Average pressure in September: 30.02"Hg
The months with the highest atmospheric pressure are November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Smithfield, NC
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Smithfield, NC
- Average humidity in September: 77%
The months with the highest relative humidity are May, August and September (77%).
The months with the lowest relative humidity are January, March and November (73%).
Average rainfall in September
Smithfield, NC
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is August (1.5").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Smithfield, NC
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in September
Smithfield, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Smithfield, NC
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Smithfield, 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 June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Smithfield, NC
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is October (22.7 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in September
Smithfield, NC
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Smithfield, NC
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Smithfield, 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).
Smithfield, North Carolina, USA
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