September weather forecast and climate
Simpson, KS

Weather in September

September, the first month of the autumn, in Simpson, is still a warm month, with average temperature varying between 80.2°F (26.8°C) and 60.6°F (15.9°C).

Temperature

In Simpson, the average high-temperature marginally drops, from a tropical 88.9°F (31.6°C) in August, to a moderately hot 80.2°F (26.8°C). The average low-temperature, in Simpson, is 60.6°F (15.9°C).

Humidity

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

Rainfall

In Simpson, during September, the rain falls for 11.7 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, in Simpson, there are 112.7 rainfall days, and 21.93" (557mm) of precipitation is accumulated.

Snowfall

In Simpson snow does not fall in June through September.

Daylight

In Simpson, the average length of the day is 12.4h.

Sunshine

In Simpson, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Simpson?

The average high-temperature, in September, in Simpson, is 80.2°F (26.8°C), while the average low-temperature is 60.6°F (15.9°C).

What is the average humidity in September in Simpson?

In September, the average relative humidity is 64%.

How many days does it rain in September in Simpson?

In Simpson, in September, it is raining for 11.7 days, with typically 1.81" (46mm) of accumulated precipitation.

Does it snow in Simpson in September?

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

When it does not snow in Simpson?

In Simpson snow does not fall in June through September.

What is the average length of the day in September in Simpson?

The average length of the day in September in Simpson is 12.4h.

How many hours of sunshine does Simpson have in September?

In Simpson, Kansas, the average sunshine in September is 8.6h.

How high is the UV index in September in Simpson?

In Simpson, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in September
Simpson, KS

Average temperature in September - Simpson, KS
  • Average high temperature in September: 80.2°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in September
Simpson, KS

Average pressure in September - Simpson, KS
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in September
Simpson, KS

Average wind speed in September - Simpson, KS
  • Average wind speed in September: 9.7mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).

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Average humidity in September
Simpson, KS

Average humidity in September - Simpson, KS
  • Average humidity in September: 64%

Months with the highest relative humidity are January and May (71%).
The month with the lowest relative humidity is July (60%).

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Average rainfall in September
Simpson, KS

Average rainfall in September - Simpson, KS
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in September
Simpson, KS

Average rainfall days in September - Simpson, KS
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (3.3 days).

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Average snowfall in September
Simpson, KS

Average snowfall in September - Simpson, KS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.44").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Simpson, KS

Average snowfall days in September - Simpson, KS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.6 days).
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
Simpson, KS

Average daylight in September / Average sunshine in September - Simpson, KS
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is June (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 5.9h).

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Average sunshine days in September
Simpson, KS

Average sunshine days in September - Simpson, KS
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is June (12.4 days).

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Average UV index in September
Simpson, KS

Average UV index in September - Simpson, KS
  • Average UV index in September: 5

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

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Average cloud cover in September
Simpson, KS

Average cloud cover in September - Simpson, KS
  • Average cloud cover in September: 26

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is June (Cloud cover 22).

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Average visibility in September
Simpson, KS

Average visibility in September - Simpson, KS
  • Average visibility in September: 6mi

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

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