September weather forecastAmherst, VA
September
Weather in September
The first month of the autumn, September, is still a warm month in Amherst, Virginia, with an average temperature ranging between max 79.5°F (26.4°C) and min 58.6°F (14.8°C).Temperature
With the onset of September, Amherst's average high-temperature slightly adjusts, moderately receding from August's hot 86.2°F (30.1°C) to a warm 79.5°F (26.4°C). During September, the temperature tends to dip to an average of 58.6°F (14.8°C) at night.Humidity
The average relative humidity in September is 75%.Rainfall
July and September are months with the least rain when the rain falls for 12.5 days and typically aggregates up to 1.89" (48mm) of rain.Snowfall
In Amherst, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:00 pm EDT.
Sunshine
In Amherst, the average sunshine in September is 8.6h.UV index
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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Amherst, VA
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (42.6°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in September
Amherst, VA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Amherst, VA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Amherst, VA
- Average humidity in September: 75%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in September
Amherst, VA
- Average rainfall in September: 1.89"
The wettest months (with the highest rainfall) are April and May (3.07").
The driest months (with the least rainfall) are July and September (1.89").
Average rainfall days in September
Amherst, VA
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in September
Amherst, VA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Amherst, VA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (4.3 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
Amherst, VA
- Average daylight in September: 12h and 24min
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 36min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Amherst, VA
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
Amherst, 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
Amherst, 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 30).
Average visibility in September
Amherst, 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).
