September weather forecastMendota, VA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Mendota, Virginia, with an average temperature ranging between max 77.9°F (25.5°C) and min 54.7°F (12.6°C).Temperature
As Mendota welcomes September, the average high-temperature is noted at a still moderately hot 77.9°F (25.5°C), closely aligning with the preceding month. Significant dips from daytime highs mark the September nights, with a consistent average temperature of 54.7°F (12.6°C).Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall in Mendota. Rain falls for 12.5 days and accumulates 0.87" (22mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:13 pm EDT.
Sunshine
In Mendota, Virginia, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mendota, VA
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in September
Mendota, VA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Mendota, VA
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Mendota, VA
- Average humidity in September: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Mendota, VA
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is February (2.17").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in September
Mendota, VA
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Mendota, VA
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Mendota, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mendota, VA
- Average daylight in September: 12h and 24min
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 36min
The months with the most sunshine are June and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Mendota, VA
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is February (10.6 days).
Average UV index in September
Mendota, VA
- Average UV index in September: 4
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
Mendota, VA
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Mendota, VA
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
