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
September marks a gentle change in average high-temperature, declining from August's warm 85.1°F (29.5°C) to a still moderately hot 79°F (26.1°C). English records a mean low-temperature of 59.4°F (15.2°C) in September.Humidity
In English, the average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 10.6 days and accumulates 0.98" (25mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In English, the average length of the day in September is 12h and 25min.On the first day of September in English, Indiana, sunrise is at 7:16 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:29 pm EDT.
Sunshine
In English, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 5 in September leads to these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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?
How much does it rain in September?
When it does not snow?
How many hours of daylight does English have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
English, IN
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in September
English, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
English, IN
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January, February and April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
English, 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
English, IN
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in September
English, IN
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (8.2 days).
Average snowfall in September
English, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
English, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.6 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
English, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in September
English, IN
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (12 days).
Average UV index in September
English, 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
English, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
English, IN
- Average visibility in September: 5mi
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).
English, Indiana, USA
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