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
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's warm 81.1°F (27.3°C) to a still moderately hot 75.4°F (24.1°C). During September, an average low-temperature of 56.3°F (13.5°C) is observed in Daytonville.Humidity
The average relative humidity in September is 76%.Rainfall
In Daytonville, in September, during 12.5 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Daytonville, Iowa, during the entire year, the rain falls for 144.7 days and collects up to 30.16" (766mm) of precipitation.Snowfall
In Daytonville, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:50 pm CDT.
Sunshine
In Daytonville, the average sunshine in September is 9.3h.UV index
In Daytonville, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun's radiation is especially intense around midday; try to stay in shade during this period. 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
What is the temperature in September in Daytonville?
What is the average humidity in September in Daytonville?
How many days does it rain in September in Daytonville?
When it does not snow in Daytonville?
Does it snow in Daytonville in September?
How many hours of daylight does Daytonville have in September?
When is the sunrise / sunset in September in Daytonville?
How many hours of sunshine does Daytonville have in September?
What is the UV index reading in September in Daytonville?
Average temperature in September
Daytonville, IA
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in September: 56.3°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 (16.2°F).
Average pressure in September
Daytonville, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Daytonville, IA
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
Daytonville, IA
- Average humidity in September: 76%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Daytonville, IA
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in September
Daytonville, IA
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Daytonville, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Daytonville, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 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
Daytonville, IA
- 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
Daytonville, IA
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in September
Daytonville, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Daytonville, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Daytonville, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Daytonville, Iowa, USA
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