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
In September, the average high-temperature marginally drops from a warm 82.8°F (28.2°C) in August to a still moderately hot 76.5°F (24.7°C). September in Lewisville generally records an average low-temperature of 55.8°F (13.2°C).Humidity
In September, the average relative humidity is 78%.Rainfall
September is the month with the least rainfall in Lewisville. Rain falls for 14.7 days and accumulates 2.17" (55mm) of precipitation.Snowfall
In Lewisville, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Lewisville, sunrise is at 6:53 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:08 pm EDT.
Sunshine
The average sunshine in September in Lewisville is 8.3h.UV index
In Lewisville, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 in September translates into these instructions:
Undertake protective steps - Preventing sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Lewisville in September?
What is the average humidity in September in Lewisville?
What is the driest month in Lewisville?
How many days does it rain in September in Lewisville?
When it does not snow in Lewisville?
Does it snow in Lewisville in September?
How many hours of daylight does Lewisville have in September?
When is the sunrise / sunset in September in Lewisville?
How many hours of sunshine does Lewisville have in September?
How high is the UV index in September in Lewisville?
Average temperature in September
Lewisville, OH
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Lewisville, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Lewisville, OH
- Average wind speed in September: 4.8mph
The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Lewisville, OH
- Average humidity in September: 78%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Lewisville, OH
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in September
Lewisville, OH
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is February (10.5 days).
Average snowfall in September
Lewisville, OH
- 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
Lewisville, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lewisville, 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 24min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Lewisville, OH
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (7.7 days).
Average UV index in September
Lewisville, OH
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Lewisville, OH
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Lewisville, OH
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).
Lewisville, Ohio, USA
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