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's advent presents an average high-temperature of a still warm 75.4°F (24.1°C), indicating a slight variation from the conditions of the previous month. Throughout the September nights, Whitestown encounters a low-temperature of 57.9°F (14.4°C).Humidity
In September, the average relative humidity is 77%.Rainfall
In Whitestown, Indiana, in September, it is raining for 10.7 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, there are 121.7 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
In Whitestown, snow does not fall in May through September.Daylight
In Whitestown, the average length of the day in September is 12h and 26min.On the first day of September in Whitestown, sunrise is at 7:13 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:28 pm EDT.
Sunshine
In Whitestown, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a regular UV index of 5 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. It's recommended to limit sun exposure when its radiation is at its peak during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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?
How many days does it rain in September?
When it does not snow?
Does it snow in Whitestown in September?
How many hours of daylight does Whitestown have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Whitestown have in September?
What is the UV index intensity in September?
Average temperature in September
Whitestown, IN
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Whitestown, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Whitestown, IN
- Average wind speed in September: 6.8mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Whitestown, IN
- Average humidity in September: 77%
The month with the highest relative humidity is December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Whitestown, IN
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in September
Whitestown, IN
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Whitestown, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Whitestown, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Whitestown, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Whitestown, IN
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in September
Whitestown, 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
Whitestown, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Whitestown, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Whitestown, Indiana, USA
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