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
A moderate decline in average high-temperatures is noted in September, moving from 82.6°F (28.1°C) in August to a still moderately hot 76.8°F (24.9°C). Throughout September, Sunman encounters an average temperature drop to a moderate 58.3°F (14.6°C).Humidity
The average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 7.5 days and typically collects 0.28" (7mm) of precipitation.Snowfall
In Sunman, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 7:09 am and sunset at 8:10 pm. On the last day of September, sunrise is at 7:36 am and sunset at 7:24 pm EDT.
Sunshine
The average sunshine in September is 8.3h.UV index
In Sunman, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | 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 much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September in Sunman?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Sunman, IN
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in September: 58.3°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°F).
Average pressure in September
Sunman, 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
Sunman, IN
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Sunman, IN
- Average humidity in September: 76%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Sunman, IN
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is May (0.79").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in September
Sunman, IN
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is May (10.1 days).
The months with the least rainy days are February and November (5.5 days).
Average snowfall in September
Sunman, IN
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.43").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Sunman, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.5 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
Sunman, 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 month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Sunman, IN
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is October (22.8 days).
The month with the least sunshine days is July (16.2 days).
Average UV index in September
Sunman, IN
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Sunman, 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
Sunman, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
Sunman, Indiana, USA
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