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 onset of September, Dover's climate undergoes a slight change as the average high-temperature moves from 83.7°F (28.7°C) in August to a still moderately hot 77.5°F (25.3°C). An average nighttime temperature of 57.9°F (14.4°C) is noted in Dover during the month of September.Humidity
August through November, with an average relative humidity of 76%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 13.5 days and typically collects 1.81" (46mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 7:05 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:19 pm EDT.
Sunshine
In September, the average sunshine in Dover is 8.3h.UV index
In Dover, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Dover?
What is the least humid month in Dover?
What is the average humidity in September in Dover?
What is the driest month in Dover?
How much does it rain in Dover in September?
When it does not snow in Dover?
Does it snow in Dover in September?
How many hours of daylight does Dover have in September?
What time are sunrise and sunset in September in Dover?
How many hours of sunshine does Dover have in September?
What is the UV index reading in September in Dover?
Average temperature in September
Dover, KY
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in September
Dover, KY
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Dover, KY
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Dover, KY
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September, October and November (76%).
Average rainfall in September
Dover, KY
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Dover, KY
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
Dover, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Dover, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 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
Dover, KY
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Dover, KY
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is October (17.5 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index in September
Dover, KY
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Dover, KY
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Dover, KY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).
Dover, Kentucky, USA
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