September weather forecast and climate
Topeka, KS

The tall tower of Topeka High School in Topeka, Kansas
The tall tower of Topeka High School in Topeka, Kansas

Weather in September

September, the first month of the autumn, in Topeka, is also a moderately hot month, with average temperature varying between 59.5°F (15.3°C) and 79°F (26.1°C).

Temperature

In September, the average high-temperature marginally drops, from a warm 85.8°F (29.9°C) in August, to a still moderately hot 79°F (26.1°C). The average low-temperature, in Topeka, is 59.5°F (15.3°C).

Humidity

In Topeka, Kansas, the average relative humidity in September is 73%.

Rainfall

In Topeka, during September, the rain falls for 12 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Topeka, during the entire year, the rain falls for 123.3 days and collects up to 23.82" (605mm) of precipitation.

Snowfall

In Topeka snow does not fall in May through September.

Daylight

In September, the average length of the day in Topeka is 12.4h.

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index in Topeka is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Topeka?

In September, the average high-temperature is 79°F (26.1°C), and the average low-temperature is 59.5°F (15.3°C).

What is the average humidity in September in Topeka?

In September, the average relative humidity is 73%.

How many days does it rain in September in Topeka?

In Topeka, Kansas, in September, it is raining for 12 days, with typically 2.17" (55mm) of accumulated precipitation.

Does it snow in Topeka in September?

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

When it does not snow in Topeka?

May through September are months without snowfall in Topeka, Kansas.

How many hours of daylight does Topeka have in September?

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

How many hours of sunshine does Topeka have in September?

In September, the average sunshine is 9h.

What is the UV index intensity in September in Topeka?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.

Average temperature in September
Topeka, KS

Average temperature in September - Topeka, KS
  • Average high temperature in September: 79°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in September: 59.5°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

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Average pressure in September
Topeka, KS

Average pressure in September - Topeka, KS
  • Average pressure in September: 29.99"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in September
Topeka, KS

Average wind speed in September - Topeka, KS
  • Average wind speed in September: 8.1mph

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 (7.3mph).

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Average humidity in September
Topeka, KS

Average humidity in September - Topeka, KS
  • Average humidity in September: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Topeka, KS

Average rainfall in September - Topeka, KS
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (0.71").

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Average rainfall days in September
Topeka, KS

Average rainfall days in September - Topeka, KS
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (4 days).

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Average snowfall in September
Topeka, KS

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

The month with the highest snowfall is February (2.6").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Topeka, KS

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

The month with the highest number of snowfall days is February (5.3 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
Topeka, KS

Average daylight in September / Average sunshine in September - Topeka, 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: 9.5h).

  • Average sunshine in September: 9h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 5.4h).

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Average sunshine days in September
Topeka, KS

Average sunshine days in September - Topeka, KS
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is December (22.8 days).
The month with the least sunshine days is May (12.7 days).

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Average UV index in September
Topeka, KS

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

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Topeka, KS

Average cloud cover in September - Topeka, KS
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 44).
Months with the least cloud cover are June and July (Cloud cover 25).

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Average visibility in September
Topeka, KS

Average visibility in September - Topeka, 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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