September weather forecastKeomah Village, IA
September
Weather in September
September, the first month of the autumn in Keomah Village, is also a moderately hot month, with an average temperature varying between 56.1°F (13.4°C) and 75.9°F (24.4°C).Temperature
The dawn of September sees an average high-temperature of a still warm 75.9°F (24.4°C), subtly contrasting with August's 81.1°F (27.3°C). During the September nights, an average temperature of 56.1°F (13.4°C) is observed.Humidity
In September, the average relative humidity in Keomah Village, Iowa, is 76%.Rainfall
In Keomah Village, in September, during 12.2 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. Throughout the year, in Keomah Village, there are 141.1 rainfall days, and 28.5" (724mm) of precipitation is accumulated.Snowfall
In Keomah Village, snow does not fall in June through September.Daylight
In Keomah Village, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:37 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:53 pm CDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
The average daily maximum UV index in September in Keomah Village, Iowa, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 4 during September leads to these advisories:
Exercise caution. Those with pale skin may experience burns in less than half an hour. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Keomah Village, IA
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
Keomah Village, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Keomah Village, IA
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
Keomah Village, IA
- Average humidity in September: 76%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Keomah Village, IA
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in September
Keomah Village, IA
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
Keomah Village, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Keomah Village, IA
- 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
Keomah Village, IA
- Average daylight in September: 12h and 30min
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: 9h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Keomah Village, IA
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (9 days).
Average UV index in September
Keomah Village, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Keomah Village, IA
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in September
Keomah Village, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
