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, Leo's average high-temperature slightly adjusts, moderately receding from August's 84.6°F (29.2°C) to a still warm 77.9°F (25.5°C). Leo's nights in September experience an average temperature drop to a refreshing 57°F (13.9°C).Humidity
In September, the average relative humidity is 76%.Rainfall
In Leo, during September, the rain falls for 12.5 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, there are 161.8 rainfall days, and 30.83" (783mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:00 am and sunset at 8:00 pm. On the last day of September, in Leo, sunrise is at 7:26 am and sunset at 7:14 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Take precautions - Protection against sun damage is advised. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Leo have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Leo, OH
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Leo, OH
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Leo, OH
- Average wind speed in September: 5.1mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in September
Leo, OH
- Average humidity in September: 76%
The months with the highest relative humidity are January, February and December (82%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Leo, OH
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is October (1.97").
Average rainfall days in September
Leo, OH
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Leo, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Leo, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Leo, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Leo, OH
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in September
Leo, 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
Leo, OH
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Leo, OH
- 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).
Leo, Ohio, USA
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