September weather forecastDutchtown, IA
September
Weather in September
September, the first month of the autumn in Dutchtown, is still a pleasant month, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 72.3°F (22.4°C).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 78.3°F (25.7°C) in August to an agreeable 72.3°F (22.4°C). Dutchtown observes an average nighttime temperature of 53.2°F (11.8°C) during September.Humidity
The average relative humidity in September is 79%.Rainfall
In Dutchtown, in September, during 8.9 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Dutchtown, during the entire year, the rain falls for 111.7 days and collects up to 13.31" (338mm) of precipitation.Snowfall
May through September are months without snowfall in Dutchtown.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:39 pm. On the last day of September, in Dutchtown, Iowa, sunrise is at 7:02 am and sunset at 6:48 pm CDT.
Sunshine
The average sunshine in September in Dutchtown is 8.9h.UV index
The average daily maximum UV index in September in Dutchtown, Iowa, is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dutchtown, IA
- Average high temperature in September: 72.3°F
The warmest month (with the highest average high temperature) is July (79.3°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 (11.7°F).
Average pressure in September
Dutchtown, 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
Dutchtown, IA
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Dutchtown, IA
- Average humidity in September: 79%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in September
Dutchtown, IA
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in September
Dutchtown, IA
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is June (15.4 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Dutchtown, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Dutchtown, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 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
Dutchtown, 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 months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Dutchtown, IA
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in September
Dutchtown, 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
Dutchtown, 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
Dutchtown, 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).
