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
With the arrival of September, Invermay notices a mild change in the average high-temperature, sliding from August's hot 87.4°F (30.8°C) to a warm 81.5°F (27.5°C). An average nighttime temperature of 62.6°F (17°C) is noted during the month of September.Heat index
September's mean heat index is appraised at a tropical 86°F (30°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.In the scope of the heat index, its values resonate with shade and light wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. 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
In Invermay, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall in Invermay is September, when the rain falls for 12 days and typically collects 1.3" (33mm) of precipitation.Snowfall
In Invermay, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:40 pm. On the last day of September, in Invermay, sunrise is at 7:07 am and sunset at 6:57 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Invermay, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. When the Sun is at its strongest around midday, find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the usual temperature for Invermay in September?
What is the average humidity in September in Invermay?
What is the driest month in Invermay?
How many days does it rain in September in Invermay?
When it does not snow in Invermay?
What is the average length of the day in September in Invermay?
When are sunrise and sunset in September in Invermay?
How long on average sun shines in September in Invermay?
What is the UV index intensity in September in Invermay?
Average temperature in September
Invermay, VA
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Invermay, VA
- 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
Invermay, VA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Invermay, VA
- Average humidity in September: 76%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Invermay, VA
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in September
Invermay, VA
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (8.3 days).
Average snowfall in September
Invermay, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Invermay, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Invermay, 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 months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Invermay, VA
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (12 days).
Average UV index in September
Invermay, 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
Invermay, VA
- Average cloud cover in September: 39
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Invermay, VA
- 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).
Invermay, Virginia, USA
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