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
August's transformation into September witnesses an average high-temperature of a still warm 74.8°F (23.8°C), noting a minor change from the preceding month. Monon, in September, observes a steady average low-temperature of 56.8°F (13.8°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In September, the rain falls for 8.8 days. Throughout September, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 115.2 rainfall days, and 10.63" (270mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 7:15 am and sunset at 8:19 pm. On the last day of September, sunrise is at 7:43 am and sunset at 7:30 pm EDT.
Sunshine
In Monon, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Monon in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Monon have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Monon have in September?
How high is the UV index in September?
Average temperature in September
Monon, IN
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Monon, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Monon, IN
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Monon, IN
- Average humidity in September: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Monon, IN
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is May (1.42").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in September
Monon, IN
- Average rainfall days in September: 8.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Monon, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Monon, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Monon, IN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Monon, IN
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Monon, IN
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Monon, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Monon, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Monon, Indiana, USA
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