September weather forecast and climate
Oskaloosa, KS

The first month of the autumn, September, is also a moderately hot month in Oskaloosa, Kansas, with temperature in the range of an average low of 59.4°F (15.2°C) and an average high of 78.6°F (25.9°C).

Temperature

In Oskaloosa, Kansas, the average high-temperature marginally drops, from 85.5°F (29.7°C) in August, to a still moderately hot 78.6°F (25.9°C). In September, the average low-temperature is 59.4°F (15.2°C).

Humidity

In Oskaloosa, the average relative humidity is 75%.

Rainfall

In September, the rain falls for 12.4 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 131.2 rainfall days, and 25.47" (647mm) of precipitation is accumulated.

Snowfall

In Oskaloosa snow does not fall in May through September.

Daylight

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

Sunshine

In September, the average sunshine in Oskaloosa is 9.2h.

UV index

In Oskaloosa, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
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. 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 Oskaloosa?

The average high-temperature, in September, in Oskaloosa, is 78.6°F (25.9°C), while the average low-temperature is 59.4°F (15.2°C).

What is the average humidity in September in Oskaloosa?

In Oskaloosa, Kansas, the average relative humidity in September is 75%.

How many days does it rain in September in Oskaloosa?

In Oskaloosa, in September, it is raining for 12.4 days, with typically 2.32" (59mm) of accumulated precipitation.

Does it snow in Oskaloosa in September?

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

When it does not snow in Oskaloosa?

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

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

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

How many hours of sunshine does Oskaloosa have in September?

The average sunshine in September in Oskaloosa is 9.2h.

How high is the UV index in September in Oskaloosa?

In Oskaloosa, Kansas, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.
Average temperature in September - Oskaloosa, KS
  • Average high temperature in September: 78.6°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.88").

Average wind speed in September - Oskaloosa, KS
  • Average wind speed in September: 7.5mph

The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in September - Oskaloosa, 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 - Oskaloosa, KS
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days in September - Oskaloosa, KS
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (4.5 days).

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

The month with the highest snowfall is February (2.64").
Months with the least snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is February (5 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Oskaloosa, 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: 9.2h

Months with the most sunshine are June and July (Average sunshine: 10.5h).
The month with the least sunshine is January (Average sunshine: 5.2h).

Average sunshine days in September - Oskaloosa, KS
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is May (12.5 days).

Average UV index in September - Oskaloosa, 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 - Oskaloosa, KS
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in September - Oskaloosa, 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).