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 arrival of September, Elm Grove notices a mild change in the average high-temperature, sliding from August's warm 84°F (28.9°C) to a still moderately hot 77.9°F (25.5°C). In September, Elm Grove reports a consistent average low-temperature of 56.5°F (13.6°C) during the nights.Humidity
April, August through November, with an average relative humidity of 76%, are the least humid months.Rainfall
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.38" (35mm) of precipitation.Snowfall
In Elm Grove, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:02 am and sunset at 8:02 pm. On the last day of September, in Elm Grove, sunrise is at 7:28 am and sunset at 7:16 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In Elm Grove, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What are the least humid months?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September in Elm Grove?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Elm Grove have in September?
How high is the UV index in September?
Average temperature in September
Elm Grove, OH
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in September
Elm Grove, OH
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Elm Grove, OH
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Elm Grove, OH
- Average humidity in September: 76%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April, August, September, October and November (76%).
Average rainfall in September
Elm Grove, OH
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in September
Elm Grove, OH
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (8 days).
Average snowfall in September
Elm Grove, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Elm Grove, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Elm Grove, 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 42min).
Average sunshine days in September
Elm Grove, OH
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in September
Elm Grove, OH
- Average UV index in September: 4
The months with the highest UV index are 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
Elm Grove, OH
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Elm Grove, OH
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
Elm Grove, Ohio, USA
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