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
As September begins, there is a minor decrease in the average high-temperature, softly falling from a warm 81.3°F (27.4°C) in August to a still moderately hot 75.4°F (24.1°C). Throughout September, Van Meter records an average temperature of 55.9°F (13.3°C) at night.Humidity
The average relative humidity in September is 76%.Rainfall
In September, in Van Meter, the rain falls for 8.5 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. In Van Meter, during the entire year, the rain falls for 93.7 days and collects up to 8.78" (223mm) of precipitation.Snowfall
June through September are months without snowfall in Van Meter.Daylight
The average length of the day in September in Van Meter is 12h and 28min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:48 pm. On the last day of September, in Van Meter, sunrise is at 7:12 am and sunset at 6:58 pm CDT.
Sunshine
In September, the average sunshine in Van Meter is 9.3h.UV index
In Van Meter, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take necessary precautions - Defending against sun damage is advocated. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Van Meter?
What is the average humidity in September in Van Meter?
How many days does it rain in September in Van Meter?
When it does not snow in Van Meter?
Does it snow in Van Meter in September?
What is the average length of the day in September in Van Meter?
When are sunrise and sunset in September in Van Meter?
How long on average sun shines in September in Van Meter?
How high is the UV index in September in Van Meter?
Average temperature in September
Van Meter, IA
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in September
Van Meter, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Van Meter, IA
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are January, February, March and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in September
Van Meter, IA
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Van Meter, IA
- Average rainfall in September: 0.91"
The wettest months (with the highest rainfall) are May and June (1.46").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in September
Van Meter, IA
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (13.6 days).
The months with the least rainy days are January and February (2.7 days).
Average snowfall in September
Van Meter, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Van Meter, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Van Meter, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Van Meter, IA
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is December (24.8 days).
The month with the least sunshine days is June (13.5 days).
Average UV index in September
Van Meter, IA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Van Meter, IA
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in September
Van Meter, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Van Meter, Iowa, USA
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