September weather forecastKennebec, IA
September
Weather in September
September, the first month of the autumn in Kennebec, is still a warm month, with an average temperature ranging between max 76.1°F (24.5°C) and min 56.3°F (13.5°C).Temperature
September is characterized by a slight reduction in average high-temperature, easing from 82°F (27.8°C) in August to a still warm 76.1°F (24.5°C). Kennebec records an average nighttime low-temperature of 56.3°F (13.5°C) throughout September.Humidity
The average relative humidity in September in Kennebec is 71%.Rainfall
In Kennebec, during September, the rain falls for 11.3 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Kennebec, Iowa, during the entire year, the rain falls for 117.6 days and collects up to 21.89" (556mm) of precipitation.Snowfall
May through September are months without snowfall in Kennebec.Daylight
In September, the average length of the day in Kennebec is 12h and 28min.On the first day of September, sunrise is at 6:50 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:06 pm CDT.
Sunshine
The average sunshine in September in Kennebec is 8.9h.UV index
In Kennebec, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kennebec, IA
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in September: 56.3°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 (15.1°F).
Average pressure in September
Kennebec, IA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Kennebec, IA
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in September
Kennebec, IA
- Average humidity in September: 71%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).
Average rainfall in September
Kennebec, IA
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in September
Kennebec, IA
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in September
Kennebec, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Kennebec, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kennebec, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Kennebec, IA
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Kennebec, IA
- 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 February and December (UV index 1).
Average cloud cover in September
Kennebec, IA
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Kennebec, IA
- 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).
