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
Longwood records an average high-temperature of a warm 82.4°F (28°C) in September, closely mirroring the climate of the previous month. Longwood experiences a nighttime temperature average of 70.3°F (21.3°C) during September.Heat index
In September, the average heat index is appraised at a hot 89.6°F (32°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.Heat index values are typically calculated for conditions of shade and a light breeze. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The average relative humidity in September in Longwood is 77%.Rainfall
In September, the rain falls for 17.3 days. Throughout September, 5.08" (129mm) of precipitation is accumulated. Throughout the year, there are 179.1 rainfall days, and 41.22" (1047mm) of precipitation is accumulated.Snowfall
In Longwood, snow does not fall in March through December.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:39 pm. On the last day of September, in Longwood, sunrise is at 7:08 am and sunset at 6:59 pm EDT.
Sunshine
The average sunshine in September in Longwood is 9.4h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 6 in September translates into this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
How hot does it get in Longwood in September?
What is the average humidity in September in Longwood?
How much does it rain in Longwood in September?
When it does not snow in Longwood?
How many hours of daylight does Longwood have in September?
When is the sunrise / sunset in September in Longwood?
How long on average sun shines in September in Longwood?
How high is the UV index in September in Longwood?
Average temperature in September
Longwood, NC
- Average high temperature in September: 82.4°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in September: 70.3°F
The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in September
Longwood, NC
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Longwood, NC
- Average wind speed in September: 8.4mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in September
Longwood, NC
- Average humidity in September: 77%
The months with the highest relative humidity are May, June, August and December (78%).
The month with the lowest relative humidity is January (74%).
Average rainfall in September
Longwood, NC
- Average rainfall in September: 5.08"
The wettest month (with the highest rainfall) is August (5.91").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in September
Longwood, NC
- Average rainfall days in September: 17.3 days
The months with the highest number of rainy days are July and August (21.1 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
Longwood, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Longwood, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 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
Longwood, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Longwood, NC
- Average sunshine days in September: 10.8 days
The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is August (6.6 days).
Average UV index in September
Longwood, NC
- Average UV index in September: 6
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 3).
Average cloud cover in September
Longwood, NC
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 28).
Average visibility in September
Longwood, 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).
Longwood, North Carolina, USA
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