September weather forecast
Toolesboro, IA

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Weather in September

The first month of the autumn, September, is still a warm month in Toolesboro, Iowa, with an average temperature varying between 76.1°F (24.5°C) and 56.3°F (13.5°C).

Temperature

The shift into September uncovers an average high-temperature of a still moderately hot 76.1°F (24.5°C), subtly different from the previous month. In September, the average low-temperature records at a moderate 56.3°F (13.5°C) during the nights.

Humidity

In Toolesboro, the average relative humidity in September is 75%.

Rainfall

In Toolesboro, in September, it is raining for 11.8 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 146.3 rainfall days, and 30.31" (770mm) of precipitation is accumulated.

Snowfall

In Toolesboro, snow does not fall in May through September.

Daylight

The average length of the day in September in Toolesboro is 12h and 28min.
On the first day of September, sunrise is at 6:31 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm CDT.

Sunshine

In September, the average sunshine is 9.5h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What are September temperatures in Toolesboro?

In Toolesboro, 76.1°F (24.5°C) is the average high-temperature and 56.3°F (13.5°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 86°F (30°C).

What is the average humidity in September in Toolesboro?

In Toolesboro, Iowa, the average relative humidity in September is 75%.

How many days does it rain in September in Toolesboro?

In Toolesboro, in September, during 11.8 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Toolesboro?

May through September are months without snowfall in Toolesboro, Iowa.

Does it snow in Toolesboro in September?

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

How many hours of daylight does Toolesboro have in September?

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

When is the sunrise / sunset in September in Toolesboro?

On the first day of September in Toolesboro, sunrise is at 6:31 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm CDT.

How many hours of sunshine does Toolesboro have in September?

In September, the average sunshine duration in Toolesboro is 9.5h.

What is the UV index reading in September in Toolesboro?

In September, the average daily maximum UV index in Toolesboro is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Toolesboro, IA

Average temperature in September - Toolesboro, IA
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure in September
Toolesboro, IA

Average pressure in September - Toolesboro, 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 (29.9"Hg).

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Average wind speed in September
Toolesboro, IA

Average wind speed in September - Toolesboro, IA
  • Average wind speed in September: 7.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in September
Toolesboro, IA

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Toolesboro, IA

Average rainfall in September - Toolesboro, IA
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is December (1.42").

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Average rainfall days in September
Toolesboro, IA

Average rainfall days in September - Toolesboro, IA
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in September
Toolesboro, IA

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

The month with the highest snowfall is January (4.49").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Toolesboro, IA

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

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Toolesboro, 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 18min).

  • Average sunshine in September: 9h and 3min

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).

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Average sunshine days in September
Toolesboro, IA

Average sunshine days in September - Toolesboro, IA
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is June (8.4 days).

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Average UV index in September
Toolesboro, IA

Average UV index in September - Toolesboro, 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).

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Average cloud cover in September
Toolesboro, IA

Average cloud cover in September - Toolesboro, IA
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Toolesboro, IA

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

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

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Toolesboro, Iowa, USA

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