September weather forecast
Winkelmans, IA

Share

Weather in September

September, the first month of the autumn in Winkelmans, is also a moderately hot month, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 55.8°F (13.2°C).

Temperature

September notes an average high-temperature of a still warm 74.8°F (23.8°C), subtly differing from August's 80.1°F (26.7°C). Winkelmans observes an average low-temperature of 55.8°F (13.2°C) during September.

Humidity

The average relative humidity in September in Winkelmans is 75%.

Rainfall

In September, the rain falls for 11.2 days. Throughout September, 2.91" (74mm) of precipitation is accumulated. In Winkelmans, during the entire year, the rain falls for 125.7 days and collects up to 26.5" (673mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Winkelmans is 12h and 28min.
On the first day of September in Winkelmans, sunrise is at 6:43 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:00 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index in Winkelmans is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Winkelmans?

September temperatures in Winkelmans vary between a high-temperature of 74.8°F (23.8°C) and a low-temperature of 55.8°F (13.2°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 89.6°F (32°C).

What is the average humidity in September in Winkelmans?

The average relative humidity in September in Winkelmans, Iowa, is 75%.

How many days does it rain in September in Winkelmans?

In Winkelmans, during September, the rain falls for 11.2 days and regularly aggregates up to 2.91" (74mm) of precipitation.

When it does not snow in Winkelmans?

June through September are months without snowfall in Winkelmans, Iowa.

Does it snow in Winkelmans in September?

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

How many hours of daylight does Winkelmans have in September?

In September, the average day length in Winkelmans is 12h and 28min.

When are sunrise and sunset in September in Winkelmans?

On the first day of September in Winkelmans, Iowa, sunrise is at 6:43 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:00 pm CDT.

How long on average sun shines in September in Winkelmans?

In Winkelmans, the average sunshine duration in September is 9.3h.

What is the UV index reading in September in Winkelmans?

In Winkelmans, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk 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
Winkelmans, IA

Average temperature in September - Winkelmans, IA
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in September
Winkelmans, IA

Average pressure in September - Winkelmans, 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
Winkelmans, IA

Average wind speed in September - Winkelmans, IA
  • Average wind speed in September: 8.3mph

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 (7.1mph).

Average humidity in September
Winkelmans, IA

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

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Winkelmans, IA

Average rainfall in September - Winkelmans, IA
  • Average rainfall in September: 2.91"

The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in September
Winkelmans, IA

Average rainfall days in September - Winkelmans, IA
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.4 days).

Average snowfall in September
Winkelmans, IA

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

The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Winkelmans, IA

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

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Winkelmans, 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: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Winkelmans, IA

Average sunshine days in September - Winkelmans, IA
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in September
Winkelmans, IA

Average UV index in September - Winkelmans, IA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in September
Winkelmans, IA

Average cloud cover in September - Winkelmans, IA
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).

Average visibility in September
Winkelmans, IA

Average visibility in September - Winkelmans, IA
  • Average visibility in September: 6mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).

Winkelmans, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location