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
Butler's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 78.3°F (25.7°C) to a pleasant 72.7°F (22.6°C). Butler's average low-temperature in the month of September is recorded at a cool 55°F (12.8°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 155.4 rainfall days, and 23.94" (608mm) of precipitation is accumulated.Snowfall
In Butler, snow does not fall in June through September.Daylight
In Butler, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:06 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:22 pm EDT.
Sunshine
The average sunshine in September in Butler is 7.9h.UV index
In Butler, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 4 in September leads to these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What are September temperatures in Butler?
What is the average humidity in September in Butler?
How many days does it rain in September in Butler?
When it does not snow in Butler?
Does it snow in Butler in September?
What is the average length of the day in September in Butler?
When are sunrise and sunset in September in Butler?
How many hours of sunshine does Butler have in September?
What is the UV index intensity in September in Butler?
Average temperature in September
Butler, IN
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in September
Butler, IN
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Butler, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Butler, IN
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Butler, IN
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in September
Butler, IN
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Butler, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Butler, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Butler, 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 12min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Butler, IN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in September
Butler, IN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Butler, IN
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Butler, IN
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Butler, Indiana, USA
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