September weather forecast
Vincent, IA

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Weather in September

September, the first month of the autumn in Vincent, is also a moderately hot month, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 54.5°F (12.5°C).

Temperature

Stepping into September, Vincent records an average high-temperature of a still moderately hot 74.1°F (23.4°C), almost consistent with August. Throughout the nights in September, Vincent experiences an average low-temperature of 54.5°F (12.5°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

In Vincent, in September, it is raining for 11.3 days, with typically 2.52" (64mm) of accumulated precipitation. In Vincent, during the entire year, the rain falls for 129.4 days and collects up to 25.04" (636mm) of precipitation.

Snowfall

In Vincent, Iowa, snow does not fall in June through September.

Daylight

In Vincent, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:58 pm CDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In Vincent, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. It's recommended to limit sun exposure when its radiation is at its peak during midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Jun 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Vincent in September?

In Vincent, in September, the average high-temperature is 74.1°F (23.4°C), and the average low-temperature is 54.5°F (12.5°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How many days does it rain in September?

In Vincent, in September, it is raining for 11.3 days, with typically 2.52" (64mm) of accumulated precipitation.

When it does not snow?

In Vincent, Iowa, snow does not fall in June through September.

Does it snow in September?

In Vincent, Iowa, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

The average day length in September is 12h and 28min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:41 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:58 pm CDT.

How many hours of sunshine does Vincent have in September?

The average sunshine duration in September is 9.1h.

How high is the UV index in September?

In Vincent, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Vincent, IA

Average temperature in September - Vincent, IA
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.5°F).

Average pressure in September
Vincent, IA

Average pressure in September - Vincent, IA
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in September
Vincent, IA

Average wind speed in September - Vincent, IA
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).

Average humidity in September
Vincent, IA

Average humidity in September - Vincent, IA
  • Average humidity in September: 75%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Vincent, IA

Average rainfall in September - Vincent, IA
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in September
Vincent, IA

Average rainfall days in September - Vincent, IA
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.3 days).

Average snowfall in September
Vincent, IA

Average snowfall in September - Vincent, IA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Vincent, IA

Average snowfall days in September - Vincent, IA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Vincent, IA

Average daylight in September / Average sunshine in September - Vincent, 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: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in September
Vincent, IA

Average sunshine days in September - Vincent, IA
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).

Average UV index in September
Vincent, IA

Average UV index in September - Vincent, 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
Vincent, IA

Average cloud cover in September - Vincent, IA
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in September
Vincent, IA

Average visibility in September - Vincent, 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).

Vincent, Iowa, USA

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