September weather forecastRyan, KY
September
Weather in September
September, the first month of the autumn in Ryan, is still a warm month, with an average temperature varying between 57.2°F (14°C) and 78.8°F (26°C).Temperature
In the transition to September, Ryan observes a minor drop in the average high-temperature, shifting from a moderately hot 85.1°F (29.5°C) in August to a still warm 78.8°F (26°C). Ryan's average nighttime temperatures present a clear contrast to its daytime highs, measured at a mild 57.2°F (14°C) in September.Humidity
In Ryan, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.93" (49mm) of precipitation.Snowfall
May through September are months without snowfall in Ryan.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 7:04 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:17 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ryan, KY
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in September: 57.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in September
Ryan, KY
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Ryan, KY
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Ryan, KY
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Ryan, KY
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Ryan, KY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in September
Ryan, KY
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Ryan, KY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ryan, KY
- Average daylight in September: 12h and 24min
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 18min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Ryan, KY
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in September
Ryan, KY
- 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
Ryan, KY
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Ryan, KY
- Average visibility in September: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
