September weather forecast
Sylvan Grove, KS

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Weather in September

September, the first month of the autumn in Sylvan Grove, is still a warm month, with an average temperature fluctuating between 61.3°F (16.3°C) and 81.5°F (27.5°C).

Temperature

As August transitions into September, Sylvan Grove sees a gentle drop in the average high-temperature, transitioning from a tropical 89.6°F (32°C) to a warm 81.5°F (27.5°C). During September, the nighttime temperature in Sylvan Grove averages to a refreshing 61.3°F (16.3°C).

Heat index

September's mean heat index is computed to be 84.2°F (29°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
Heat index determinations are made taking into account the shade and light air movements. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

The average relative humidity in September is 64%.

Rainfall

In Sylvan Grove, in September, during 9.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Sylvan Grove, during the entire year, the rain falls for 91.6 days and collects up to 12.13" (308mm) of precipitation.

Snowfall

In Sylvan Grove, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 7:03 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:17 pm CDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

In Sylvan Grove, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: During September, 5 as the daily maximum UV index converts into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What is the temperature in September in Sylvan Grove?

The high-temperature, in September, in Sylvan Grove, is 81.5°F (27.5°C), while the low-temperature averages to 61.3°F (16.3°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in September is computed to be 84.2°F (29°C).

What is the average humidity in September in Sylvan Grove?

In September, the average relative humidity in Sylvan Grove is 64%.

How much does it rain in Sylvan Grove in September?

In Sylvan Grove, Kansas, in September, during 9.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

When it does not snow in Sylvan Grove?

In Sylvan Grove, snow does not fall in June through September.

Does it snow in Sylvan Grove in September?

In Sylvan Grove, Kansas, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Sylvan Grove have in September?

The average day length in September is 12h and 26min.

What time are sunrise and sunset in September in Sylvan Grove?

In September, on the first day of the month, sunrise is at 7:03 am and sunset at 8:03 pm. On the last day of the month, in Sylvan Grove, sunrise is at 7:29 am and sunset at 7:17 pm CDT.

How many hours of sunshine does Sylvan Grove have in September?

The average sunshine duration in September is 8.9h.

How high is the UV index in September in Sylvan Grove?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Sylvan Grove, KS

Average temperature in September - Sylvan Grove, KS
  • Average high temperature in September: 81.5°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in September
Sylvan Grove, KS

Average pressure in September - Sylvan Grove, KS
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in September
Sylvan Grove, KS

Average wind speed in September - Sylvan Grove, KS
  • Average wind speed in September: 10.4mph

The windiest month (with the highest average wind speed) is April (12.5mph).
The calmest month (with the lowest average wind speed) is August (9.2mph).

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Average humidity in September
Sylvan Grove, KS

Average humidity in September - Sylvan Grove, KS
  • Average humidity in September: 64%

The months with the highest relative humidity are May and December (69%).
The month with the lowest relative humidity is July (59%).

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Average rainfall in September
Sylvan Grove, KS

Average rainfall in September - Sylvan Grove, KS
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is January (0.31").

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Average rainfall days in September
Sylvan Grove, KS

Average rainfall days in September - Sylvan Grove, KS
  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is July (12 days).
The month with the least rainy days is January (3 days).

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Average snowfall in September
Sylvan Grove, KS

Average snowfall in September - Sylvan Grove, KS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.42").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Sylvan Grove, KS

Average snowfall days in September - Sylvan Grove, KS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.2 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
Sylvan Grove, KS

Average daylight in September / Average sunshine in September - Sylvan Grove, KS
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Sylvan Grove, KS

Average sunshine days in September - Sylvan Grove, KS
  • Average sunshine days in September: 17.7 days

The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is July (14.8 days).

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Average UV index in September
Sylvan Grove, KS

Average UV index in September - Sylvan Grove, KS
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Sylvan Grove, KS

Average cloud cover in September - Sylvan Grove, KS
  • Average cloud cover in September: 24

The months with the most cloud cover are February and March (Cloud cover 36).
The month with the least cloud cover is June (Cloud cover 20).

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Average visibility in September
Sylvan Grove, KS

Average visibility in September - Sylvan Grove, KS
  • 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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Sylvan Grove, Kansas, USA

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