September weather forecastButler, TN
September
Weather in September
September, the first month of the autumn in Butler, is still a warm month, with an average temperature ranging between min 54.5°F (12.5°C) and max 76.8°F (24.9°C).Temperature
Butler observes a minor difference in average high-temperatures between August's 81.9°F (27.7°C) and September's 76.8°F (24.9°C). During the nights in September, Butler records a pronounced shift from the daytime warmth, with a consistent average temperature of 54.5°F (12.5°C).Humidity
The average relative humidity in September in Butler is 77%.Rainfall
The month with the least rainfall in Butler is September, when the rain falls for 15.3 days and typically collects 1.69" (43mm) of precipitation.Snowfall
In Butler, snow does not fall in May through September.Daylight
In September, the average length of the day in Butler is 12h and 24min.On the first day of September, sunrise is at 7:00 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:12 pm EDT.
Sunshine
The average sunshine in September in Butler is 8.6h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Butler, TN
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in September
Butler, TN
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Butler, TN
- Average wind speed in September: 4mph
The windiest months (with the highest average wind speed) are January and April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Butler, TN
- Average humidity in September: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Butler, TN
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is February (3.27").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Butler, TN
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is May (20.4 days).
The months with the least rainy days are October and November (11.9 days).
Average snowfall in September
Butler, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Butler, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 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, TN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Butler, TN
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is October (16.6 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in September
Butler, TN
- Average UV index in September: 4
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 and December (UV index 2).
Average cloud cover in September
Butler, TN
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Butler, TN
- Average visibility in September: 5mi
The months with the highest visibility are June and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October and December (5mi).
