September weather forecastBankston, IA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Bankston, Iowa, with an average temperature fluctuating between 53.2°F (11.8°C) and 72.5°F (22.5°C).Temperature
Bankston observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 77.9°F (25.5°C) to a pleasant 72.5°F (22.5°C). In the month of September, Bankston's average low-temperature falls to a cool 53.2°F (11.8°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Bankston, during September, the rain falls for 12.5 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Bankston, Iowa, during the entire year, the rain falls for 150.8 days and collects up to 32.4" (823mm) of precipitation.Snowfall
In Bankston, snow does not fall in May through September.Daylight
In Bankston, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:37 pm. On the last day of September, in Bankston, sunrise is at 7:00 am and sunset at 6:46 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September in Bankston, Iowa, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bankston, IA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in September
Bankston, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Bankston, IA
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Bankston, IA
- Average humidity in September: 80%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in September
Bankston, IA
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in September
Bankston, IA
- Average rainfall days in September: 12.5 days
The months with the highest number of rainy days are May and June (19.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Bankston, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Bankston, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14 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
Bankston, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Bankston, IA
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in September
Bankston, IA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Bankston, IA
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in September
Bankston, IA
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
