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
New Vienna in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 77.9°F (25.5°C) to an agreeable 72.5°F (22.5°C). Throughout September, the nighttime temperature averages to a fresh 53.2°F (11.8°C).Humidity
The average relative humidity in September in New Vienna is 80%.Rainfall
In New Vienna, during September, the rain falls for 12.5 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, in New Vienna, Iowa, there are 150.8 rainfall days, and 32.4" (823mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in New Vienna.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September in New Vienna, sunrise is at 6:30 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:47 pm CDT.
Sunshine
The average sunshine in September in New Vienna is 8.9h.UV index
In September, the average daily maximum UV index in New Vienna is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What are the temperatures in New Vienna in September?
What is the average humidity in September in New Vienna?
How many days does it rain in September in New Vienna?
When it does not snow in New Vienna?
Does it snow in New Vienna in September?
What is the average length of the day in September in New Vienna?
When is the sunrise / sunset in September in New Vienna?
How long on average sun shines in September in New Vienna?
How high is the UV index in September in New Vienna?
Average temperature in September
New Vienna, 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
New Vienna, 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
New Vienna, 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
New Vienna, 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
New Vienna, 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
New Vienna, 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
New Vienna, 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
New Vienna, 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
New Vienna, IA
- Average daylight in September: 12h and 3min
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 5min
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
New Vienna, 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
New Vienna, 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
New Vienna, 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
New Vienna, 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).
New Vienna, Iowa, USA
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