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
September's advent presents an average high-temperature of a still warm 74.8°F (23.8°C), indicating a slight variation from the conditions of the previous month. September brings West Amana a consistent average low-temperature of 55.2°F (12.9°C).Humidity
The average relative humidity in September in West Amana, Iowa, is 77%.Rainfall
In West Amana, Iowa, in September, during 12.4 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In West Amana, during the entire year, the rain falls for 141.8 days and collects up to 29.61" (752mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in West Amana is 12h and 28min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:50 pm CDT.
Sunshine
In West Amana, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in West Amana is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What are September temperatures in West Amana?
What is the average humidity in September in West Amana?
How many days does it rain in September in West Amana?
When it does not snow in West Amana?
Does it snow in West Amana in September?
What is the average length of the day in September in West Amana?
When is the sunrise / sunset in September in West Amana?
How long on average sun shines in September in West Amana?
What is the UV index intensity in September in West Amana?
Average temperature in September
West Amana, IA
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
West Amana, 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 (29.89"Hg).
Average wind speed in September
West Amana, IA
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
West Amana, IA
- Average humidity in September: 77%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
West Amana, IA
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
West Amana, IA
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
West Amana, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Amana, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Amana, IA
- Average daylight in September: 12h and 3min
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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in September
West Amana, IA
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in September
West Amana, 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
West Amana, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in September
West Amana, 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).
West Amana, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location
