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
As August transitions into September, Lawrenceville sees a gentle drop in the average high-temperature, transitioning from a hot 87.3°F (30.7°C) to a moderately hot 81.1°F (27.3°C). Throughout September, the temperature in Lawrenceville falls to an average low of 62.8°F (17.1°C).Heat index
The heat index in September is evaluated at a hot 86°F (30°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
The average relative humidity in September is 76%.Rainfall
In September, the rain falls for 11.8 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 146.6 rainfall days, and 20.91" (531mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Lawrenceville.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September in Lawrenceville is 8.8h.UV index
In Lawrenceville, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the temperature in September in Lawrenceville?
What is the average humidity in September in Lawrenceville?
How many days does it rain in September in Lawrenceville?
When it does not snow in Lawrenceville?
What is the average length of the day in September in Lawrenceville?
When are sunrise and sunset in September in Lawrenceville?
How long on average sun shines in September in Lawrenceville?
How high is the UV index in September in Lawrenceville?
Average temperature in September
Lawrenceville, VA
- Average high temperature in September: 81.1°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in September: 62.8°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 (30.6°F).
Average pressure in September
Lawrenceville, VA
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Lawrenceville, VA
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Lawrenceville, VA
- Average humidity in September: 76%
The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in September
Lawrenceville, VA
- Average rainfall in September: 1.34"
The wettest months (with the highest rainfall) are May and August (2.05").
The driest month (with the least rainfall) is October (1.1").
Average rainfall days in September
Lawrenceville, VA
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is October (8.3 days).
Average snowfall in September
Lawrenceville, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Lawrenceville, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Lawrenceville, VA
- 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 42min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Lawrenceville, VA
- Average sunshine days in September: 16 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Lawrenceville, VA
- 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
Lawrenceville, VA
- Average cloud cover in September: 38
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 31).
Average visibility in September
Lawrenceville, VA
- 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).
Lawrenceville, Virginia, USA
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