Topeka
Kansas, USA
Long-term weather forecast
Long-term weather forecast

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
The first month of the autumn, September, is still a warm month in Topeka, Kansas, with average temperature varying between 59.5°F (15.3°C) and 79°F (26.1°C).

Temperature

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

Humidity

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

Rainfall

In September, the rain falls for 12 days. Throughout September, 2.17" (55mm) of precipitation is accumulated. Throughout the year, there are 123.3 rainfall days, and 23.82" (605mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Topeka.

Daylight

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

Sunshine

The average sunshine in Topeka is 9h.

UV index

The average daily maximum UV index in Topeka is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
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.

What is the temperature in September in Topeka?

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

How much does it rain in Topeka in September?

In September, in Topeka, Kansas, the rain falls for 12 days. Throughout September, 2.17" (55mm) of precipitation is accumulated.

Does it snow in Topeka in September?

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

When it does not snow in Topeka?

In Topeka snow does not fall in May through September.

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

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

How long on average sun shines in September in Topeka?

In September, the average sunshine in Topeka is 9h.

How high is the UV index in September in Topeka?

The average daily maximum UV index in September in Topeka, Kansas, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Topeka, KS
  • Average high temperature in September: 26.1°C

The warmest month (with the highest average high temperature) is July (31°C).
The month with the lowest average high temperature is January (3.3°C).

  • Average low temperature in September: 15.3°C

The month with the highest average low temperature is July (20.4°C).
The coldest month (with the lowest average low temperature) is January (-5.2°C).

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%).

Average rainfall in September - Topeka, KS
  • Average rainfall in September: 55mm

The wettest month (with the highest rainfall) is May (95mm).
The driest month (with the lowest rainfall) is January (18mm).

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 lowest number of rainy days is January (4 days).

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

The month with the highest snowfall is February (66mm).
Months with the lowest snowfall are May, June, July, August and September (0mm).

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 lowest number of snowfall days are June, July, August and September (0 days).

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 shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 9h

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

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).