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 slight shift in average high-temperature, moving from 82°F (27.8°C) in August to a still moderately hot 76.1°F (24.5°C). The temperature lowers to an average of 57.7°F (14.3°C) during September nights.Humidity
The average relative humidity in September is 74%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.1 days and typically collects 1.69" (43mm) of precipitation.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 8:03 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability 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:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Upper Arlington have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Upper Arlington have in September?
What is the UV index reading in September?
Average temperature in September
Upper Arlington, OH
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Upper Arlington, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Upper Arlington, OH
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Upper Arlington, OH
- Average humidity in September: 74%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Upper Arlington, OH
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Upper Arlington, OH
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in September
Upper Arlington, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Upper Arlington, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Upper Arlington, OH
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- 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 30min).
Average sunshine days in September
Upper Arlington, OH
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in September
Upper Arlington, 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
Upper Arlington, OH
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Upper Arlington, OH
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Upper Arlington, Ohio, USA
Weather forecast for your location
2. Allow the app to use your location