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 start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 83.8°F (28.8°C) in August to a still moderately hot 78.1°F (25.6°C). Seymour's average low-temperature for the month of September records at a refreshing 58.5°F (14.7°C).Humidity
In Seymour, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall in Seymour is September, when the rain falls for 12.9 days and typically collects 1.85" (47mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day in Seymour is 12h and 26min.On the first day of September, sunrise is at 7:13 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 7:27 pm EDT.
Sunshine
In Seymour, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Seymour is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 5 during September translates into the following guidance:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What is the temperature in September in Seymour?
What is the average humidity in September in Seymour?
What is the driest month in Seymour?
How much does it rain in Seymour in September?
When it does not snow in Seymour?
Does it snow in Seymour in September?
How many hours of daylight does Seymour have in September?
When is the sunrise / sunset in September in Seymour?
How long on average sun shines in September in Seymour?
What is the UV index intensity in September in Seymour?
Average temperature in September
Seymour, IN
- Average high temperature in September: 78.1°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 (36.7°F).
- Average low temperature in September: 58.5°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Seymour, 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
Seymour, IN
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Seymour, IN
- Average humidity in September: 76%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Seymour, IN
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Seymour, IN
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in September
Seymour, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Seymour, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9 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
Seymour, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 6min).
Average sunshine days in September
Seymour, IN
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in September
Seymour, 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
Seymour, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Seymour, IN
- 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).
Seymour, Indiana, USA
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