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
The advent of September brings a subtle shift in temperature, with the average high moving from a moderately hot 82.8°F (28.2°C) in August to a still warm 77°F (25°C). An average nighttime temperature of 58.3°F (14.6°C) is recorded in Blue Ash, Ohio, during September.Humidity
The average relative humidity in September in Blue Ash is 75%.Rainfall
The month with the least rainfall in Blue Ash is September, when the rain falls for 7.8 days and typically collects 0.31" (8mm) of precipitation.Snowfall
May through October are months without snowfall in Blue Ash.Daylight
The average length of the day in September in Blue Ash is 12h and 26min.On the first day of September in Blue Ash, sunrise is at 7:06 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:21 pm EDT.
Sunshine
In September, the average sunshine in Blue Ash is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What are September temperatures in Blue Ash?
What is the average humidity in September in Blue Ash?
What is the driest month in Blue Ash?
How much does it rain in Blue Ash in September?
When it does not snow in Blue Ash?
How many hours of daylight does Blue Ash have in September?
When is the sunrise / sunset in September in Blue Ash?
How long on average sun shines in September in Blue Ash?
What is the UV index intensity in September in Blue Ash?
Average temperature in September
Blue Ash, OH
- Average high temperature in September: 77°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 58.3°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 (23.2°F).
Average pressure in September
Blue Ash, OH
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Blue Ash, OH
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Blue Ash, OH
- Average humidity in September: 75%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Blue Ash, OH
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is May (0.94").
The driest month (with the least rainfall) is September (0.31").
Average rainfall days in September
Blue Ash, OH
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in September
Blue Ash, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.59").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Blue Ash, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.2 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
Blue Ash, OH
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Blue Ash, OH
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is June (16 days).
Average UV index in September
Blue Ash, OH
- 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, November and December (UV index 2).
Average cloud cover in September
Blue Ash, OH
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Blue Ash, OH
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Blue Ash, Ohio, USA
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