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 reveals a small adjustment in temperature, transitioning from an average high of a hot 86.2°F (30.1°C) in August to a warm 79.5°F (26.4°C). In the month of September, Amherst experiences an average low-temperature of 58.6°F (14.8°C).Humidity
The average relative humidity in September is 75%.Rainfall
The months with the least rainfall are July and September Rain falls for 12.5 days and accumulates 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 in Amherst 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
In September, the average daily maximum UV index in Amherst is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 during September translates into the following guidance:
Ensure safety - Imperative it is to shield skin and eyes from damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What is the usual temperature for Amherst in September?
What is the average humidity in September in Amherst?
What is the driest month in Amherst?
How much does it rain in Amherst in September?
When it does not snow in Amherst?
Does it snow in Amherst in September?
How many hours of daylight does Amherst have in September?
When is the sunrise / sunset in September in Amherst?
How long on average sun shines in September in Amherst?
What is the UV index reading in September in Amherst?
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 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 36min).
- Average sunshine in September: 8h and 4min
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).
Amherst, Virginia, USA
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