September weather forecast and climate
Saint Francis, KS

September, the first month of the autumn, in Saint Francis, is still a warm month, with average temperature fluctuating between 80.8°F (27.1°C) and 59°F (15°C).

Temperature

In Saint Francis, Kansas, the average high-temperature marginally drops, from a hot 87.8°F (31°C) in August, to a warm 80.8°F (27.1°C). The average low-temperature, in Saint Francis, Kansas, is 59°F (15°C).

Heat index

In September, the average heat index is estimated at 81.5°F (27.5°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like wind, differences in body mass, height, and shape, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

July and September, with an average relative humidity of 50%, are the least humid months in Saint Francis.

Rainfall

In September, the rain falls for 9.9 days. Throughout September, 1.06" (27mm) of precipitation is accumulated. Throughout the year, in Saint Francis, there are 103.5 rainfall days, and 14.49" (368mm) of precipitation is accumulated.

Snowfall

In Saint Francis snow does not fall in June through September.

Daylight

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

Sunshine

In September, the average sunshine is 9.3h.

UV index

The average daily maximum UV index in Saint Francis is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Saint Francis?

The average high-temperature, in September, is 80.8°F (27.1°C), while the average low-temperature is 59°F (15°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that factores the actual air temperature with the relative humidity, is calculated to 81.5°F (27.5°C).

What is the least humid month in Saint Francis?

July and September, with an average relative humidity of 50%, are the least humid months in Saint Francis, Kansas.

What is the average humidity in September in Saint Francis?

In Saint Francis, Kansas, the average relative humidity in September is 50%.

How much does it rain in Saint Francis in September?

In Saint Francis, Kansas, during September, the rain falls for 9.9 days and regularly aggregates up to 1.06" (27mm) of precipitation.

Does it snow in Saint Francis in September?

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

When it does not snow in Saint Francis?

In Saint Francis snow does not fall in June through September.

How many hours of daylight does Saint Francis have in September?

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

How long on average sun shines in September in Saint Francis?

In September, the average sunshine in Saint Francis, Kansas, is 9.3h.

How high is the UV index in September in Saint Francis?

The average daily maximum UV index in September in Saint Francis is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.
Average temperature in September - Saint Francis, KS
  • Average high temperature in September: 80.8°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (40.6°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).

Average pressure in September - Saint Francis, KS
  • Average pressure in September: 29.93"

The month with the highest atmospheric pressure is January (30.12").
The month with the lowest atmospheric pressure is June (29.81").

Average wind speed in September - Saint Francis, KS
  • Average wind speed in September: 10.6mph

The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).

Average humidity in September - Saint Francis, KS
  • Average humidity in September: 50%

Months with the highest relative humidity are January, February and December (63%).
Months with the lowest relative humidity are July and September (50%).

Average rainfall in September - Saint Francis, KS
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in September - Saint Francis, KS
  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is December (3.3 days).

Average snowfall in September - Saint Francis, KS
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.17").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in September - Saint Francis, KS
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (6.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 9.3h

The month with the most sunshine is July (Average sunshine: 11.6h).
The month with the least sunshine is December (Average sunshine: 6.5h).

Average sunshine days in September - Saint Francis, KS
  • Average sunshine days in September: 16.6 days

Months with the most sunshine days are November and December (23.3 days).
The month with the least sunshine days is July (11.7 days).

Average UV index in September - Saint Francis, KS
  • Average UV index in September: 5

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

Average cloud cover in September - Saint Francis, KS
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 32).
The month with the least cloud cover is June (Cloud cover 18).

Average visibility in September - Saint Francis, 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).