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 witnesses a gentle descent in average high-temperature, descending from August's hot 87.4°F (30.8°C) to a warm 81°F (27.2°C). Nighttime temperature dips to a mean of 62.2°F (16.8°C) during September.Heat index
For most parts of September, the heat index is appraised at a hot 86°F (30°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
The average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 1.93" (49mm) of precipitation.Snowfall
In Champ, snow does not fall in May through September.Daylight
In Champ, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm EDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Take precautions - Protection against sun damage is advised. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Champ, VA
- Average high temperature in September: 81°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in September
Champ, 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
Champ, VA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Champ, VA
- Average humidity in September: 75%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).
Average rainfall in September
Champ, VA
- Average rainfall in September: 1.93"
The wettest months (with the highest rainfall) are March, May and November (2.68").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Champ, VA
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Champ, VA
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Champ, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Champ, VA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Champ, VA
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Champ, 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, February and December (UV index 2).
Average cloud cover in September
Champ, VA
- Average cloud cover in September: 40
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Champ, 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).
Champ, Virginia, USA
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