September weather forecast
Saylorville, IA

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Weather in September

September, the first month of the autumn in Saylorville, is also a moderately hot month, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 55.9°F (13.3°C).

Temperature

September implies a soft temperature shift, with average high-temperatures reducing from August's 81.1°F (27.3°C) to a still moderately hot 75.2°F (24°C). In Saylorville, the expected average low-temperature for September is a mild 55.9°F (13.3°C).

Humidity

The average relative humidity in September is 76%.

Rainfall

In Saylorville, in September, it is raining for 10.8 days, with typically 2.6" (66mm) of accumulated precipitation. In Saylorville, Iowa, during the entire year, the rain falls for 129.8 days and collects up to 25.91" (658mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Saylorville, 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 7:47 pm. On the last day of September, in Saylorville, Iowa, sunrise is at 7:11 am and sunset at 6:57 pm CDT.

Sunshine

In Saylorville, the average sunshine in September is 9.4h.

UV index

In Saylorville, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What is the temperature in September in Saylorville?

In Saylorville, 75.2°F (24°C) is the average high-temperature and 55.9°F (13.3°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 86°F (30°C).

What is the average humidity in September in Saylorville?

The average relative humidity in September is 76%.

How many days does it rain in September in Saylorville?

In Saylorville, during September, the rain falls for 10.8 days and regularly aggregates up to 2.6" (66mm) of precipitation.

When it does not snow in Saylorville?

In Saylorville, snow does not fall in June through September.

Does it snow in Saylorville in September?

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

How many hours of daylight does Saylorville have in September?

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

When are sunrise and sunset in September in Saylorville?

On the first day of September in Saylorville, sunrise is at 6:41 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:57 pm CDT.

How many hours of sunshine does Saylorville have in September?

In Saylorville, the average sunshine duration in September is 9.4h.

What is the UV index reading in September in Saylorville?

In September, the average daily maximum UV index in Saylorville is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
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
Saylorville, IA

Average temperature in September - Saylorville, IA
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in September: 55.9°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure in September
Saylorville, IA

Average pressure in September - Saylorville, 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).

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Average wind speed in September
Saylorville, IA

Average wind speed in September - Saylorville, IA
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in September
Saylorville, IA

Average humidity in September - Saylorville, IA
  • Average humidity in September: 76%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Saylorville, IA

Average rainfall in September - Saylorville, IA
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in September
Saylorville, IA

Average rainfall days in September - Saylorville, IA
  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (3.7 days).

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Average snowfall in September
Saylorville, IA

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

The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Saylorville, IA

Average snowfall days in September - Saylorville, 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).

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

Average daylight in September / Average sunshine in September - Saylorville, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in September
Saylorville, IA

Average sunshine days in September - Saylorville, IA
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (11 days).

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Average UV index in September
Saylorville, IA

Average UV index in September - Saylorville, 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).

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Average cloud cover in September
Saylorville, IA

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

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).

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Average visibility in September
Saylorville, IA

Average visibility in September - Saylorville, 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).

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Saylorville, Iowa, USA

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