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 onset of September results in a small decrease in the average high-temperature, moderately receding from 84.2°F (29°C) in August to a still moderately hot 77.9°F (25.5°C). Throughout September, Downey Corner anticipates an average low-temperature of 58.5°F (14.7°C).Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.73" (44mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 7:09 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:23 pm EDT.
Sunshine
In Downey Corner, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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?
What is the driest month in Downey Corner?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Downey Corner have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Downey Corner have in September?
What is the UV index reading in September?
Average temperature in September
Downey Corner, IN
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in September
Downey Corner, IN
- 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
Downey Corner, IN
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Downey Corner, IN
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Downey Corner, IN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Downey Corner, IN
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in September
Downey Corner, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Downey Corner, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 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
Downey Corner, IN
- 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 July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Downey Corner, IN
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in September
Downey Corner, IN
- Average UV index in September: 5
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
Downey Corner, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Downey Corner, IN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).
Downey Corner, Indiana, USA
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