September weather forecastDelphia, KY
September
Weather in September
September, the first month of the autumn in Delphia, is also a moderately hot month, with an average temperature varying between 55°F (12.8°C) and 76.6°F (24.8°C).Temperature
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 82.2°F (27.9°C) to a still moderately hot 76.6°F (24.8°C). Delphia registers a pronounced decline from daytime peak temperatures, averaging a cool 55°F (12.8°C) lows in September.Humidity
In September, the average relative humidity is 78%.Rainfall
The months with the least rainfall in Delphia are September and November Rain falls for 16.7 days and accumulates 2.87" (73mm) of rain.Snowfall
June through September are months without snowfall in Delphia.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 7:03 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:16 pm EDT.
Sunshine
The average sunshine in September is 7.9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 4 in September translates into this advice:
Take precautions - Protection against sun damage is advised. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Delphia, KY
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Delphia, KY
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Delphia, KY
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Delphia, KY
- Average humidity in September: 78%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is November (77%).
Average rainfall in September
Delphia, KY
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is July (4.65").
The driest months (with the least rainfall) are September and November (2.87").
Average rainfall days in September
Delphia, KY
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is May (22.1 days).
The month with the least rainy days is November (11.9 days).
Average snowfall in September
Delphia, KY
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Delphia, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delphia, KY
- 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 42min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Delphia, KY
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (7.3 days).
Average UV index in September
Delphia, KY
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Delphia, KY
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
Delphia, KY
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
