September weather forecast
Fillmore, OK

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Fillmore, Oklahoma, with an average temperature fluctuating between 66.2°F (19°C) and 85.6°F (29.8°C).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from a hot 94.1°F (34.5°C) in August to a moderately hot 85.6°F (29.8°C). The nighttime temperature, during September, averages of 66.2°F (19°C).

Heat index

For September, the heat index is computed to be a hot 93.2°F (34°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

The average relative humidity in September is 67%.

Rainfall

In Fillmore, in September, it is raining for 12.9 days, with typically 2.87" (73mm) of accumulated precipitation. In Fillmore, Oklahoma, during the entire year, the rain falls for 135.8 days and collects up to 30.24" (768mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Fillmore, the average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:59 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:11 pm CDT.

Sunshine

In Fillmore, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The high-temperature, in September, in Fillmore, is 85.6°F (29.8°C), while the low-temperature averages to 66.2°F (19°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 93.2°F (34°C).

What is the average humidity in September?

The average relative humidity in September is 67%.

How much does it rain in September?

In Fillmore, in September, it is raining for 12.9 days, with typically 2.87" (73mm) of accumulated precipitation.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Fillmore have in September?

The average day length in September is 12h and 22min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:59 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:11 pm CDT.

How many hours of sunshine does Fillmore have in September?

In September, the average sunshine duration is 8.5h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Fillmore, OK

Average temperature in September - Fillmore, OK
  • Average high temperature in September: 85.6°F

The warmest month (with the highest average high temperature) is August (94.1°F).
The month with the lowest average high temperature is January (51.3°F).

  • Average low temperature in September: 66.2°F

The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

Average pressure in September
Fillmore, OK

Average pressure in September - Fillmore, OK
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in September
Fillmore, OK

Average wind speed in September - Fillmore, OK
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

Average humidity in September
Fillmore, OK

Average humidity in September - Fillmore, OK
  • Average humidity in September: 67%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (61%).

Average rainfall in September
Fillmore, OK

Average rainfall in September - Fillmore, OK
  • Average rainfall in September: 2.87"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is December (1.57").

Average rainfall days in September
Fillmore, OK

Average rainfall days in September - Fillmore, OK
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.2 days).

Average snowfall in September
Fillmore, OK

Average snowfall in September - Fillmore, OK
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Fillmore, OK

Average snowfall days in September - Fillmore, OK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Fillmore, OK

Average daylight in September / Average sunshine in September - Fillmore, OK
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in September
Fillmore, OK

Average sunshine days in September - Fillmore, OK
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is May (13.6 days).

Average UV index in September
Fillmore, OK

Average UV index in September - Fillmore, OK
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in September
Fillmore, OK

Average cloud cover in September - Fillmore, OK
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Fillmore, OK

Average visibility in September - Fillmore, OK
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Fillmore, Oklahoma, USA

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