September weather forecast and climate
Rantoul, KS

The first month of the autumn, September, is also a moderately hot month in Rantoul, Kansas, with average temperature fluctuating between 60.1°F (15.6°C) and 78.8°F (26°C).

Temperature

In September, the average high-temperature marginally drops, from a moderately hot 85.3°F (29.6°C) in August, to a still warm 78.8°F (26°C). In Rantoul, the average low-temperature is 60.1°F (15.6°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

In Rantoul, Kansas, during 11.5 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, in Rantoul, there are 126.9 rainfall days, and 23.5" (597mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

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

Sunshine

The average sunshine in September is 9.2h.

UV index

In Rantoul, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Rantoul?

In Rantoul, Kansas, in September, the average high-temperature is 78.8°F (26°C), and the average low-temperature is 60.1°F (15.6°C).

What is the average humidity in September in Rantoul?

In September, the average relative humidity is 75%.

How much does it rain in Rantoul in September?

In Rantoul, Kansas, in September, it is raining for 11.5 days, with typically 2.01" (51mm) of accumulated precipitation.

Does it snow in Rantoul in September?

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

When it does not snow in Rantoul?

May through September are months without snowfall in Rantoul.

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

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

How long on average sun shines in September in Rantoul?

The average sunshine in September is 9.2h.

What is the UV index intensity in September in Rantoul?

In Rantoul, Kansas, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in September - Rantoul, KS
  • Average high temperature in September: 78.8°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 60.1°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in September - Rantoul, KS
  • Average pressure in September: 30"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.88").

Average wind speed in September - Rantoul, KS
  • Average wind speed in September: 7.8mph

The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in September - Rantoul, KS
  • Average humidity in September: 75%

The month with the highest relative humidity is May (79%).
Months with the lowest relative humidity are October and November (69%).

Average rainfall in September - Rantoul, KS
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in September - Rantoul, KS
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is December (4.5 days).

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

The month with the highest snowfall is February (2.28").
Months with the least snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is February (4.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 9.2h

The month with the most sunshine is June (Average sunshine: 10.7h).
The month with the least sunshine is January (Average sunshine: 5.4h).

Average sunshine days in September - Rantoul, KS
  • Average sunshine days in September: 15.8 days

Months with the most sunshine days are January and December (22.6 days).
The month with the least sunshine days is May (12.7 days).

Average UV index in September - Rantoul, 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).

Average cloud cover in September - Rantoul, 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).

Average visibility in September - Rantoul, 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).