September weather forecast
Blanchard, OK

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Weather in September

The first month of the autumn, September, is still a warm month in Blanchard, Oklahoma, with an average temperature ranging between min 65.7°F (18.7°C) and max 84.6°F (29.2°C).

Temperature

In Blanchard, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's hot 93.4°F (34.1°C) to a moderately hot 84.6°F (29.2°C). Blanchard's temperature lowers to a mean of 65.7°F (18.7°C) during the nights in September.

Heat index

In September, the average heat index is computed to be a hot 89.6°F (32°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Note that heat index values are valued for light wind and location in the shade. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

In Blanchard, the average relative humidity in September is 65%.

Rainfall

In Blanchard, Oklahoma, during September, the rain falls for 12 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Blanchard, during the entire year, the rain falls for 114.4 days and collects up to 20.24" (514mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September in Blanchard, Oklahoma, is 12h and 23min.
On the first day of September, sunrise is at 7:03 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:15 pm CDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 5 in September translates into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

In September, in Blanchard, the average high-temperature is 84.6°F (29.2°C), and the average low-temperature is 65.7°F (18.7°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 65%.

How many days does it rain in September in Blanchard?

In September, the rain falls for 12 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow?

In Blanchard, snow does not fall in April through October.

How many hours of daylight does Blanchard have in September?

The average day length in September is 12h and 23min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:03 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:15 pm CDT.

How many hours of sunshine does Blanchard have in September?

The average sunshine duration in September is 8.7h.

What is the UV index reading 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
Blanchard, OK

Average temperature in September - Blanchard, OK
  • Average high temperature in September: 84.6°F

The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (49.1°F).

  • Average low temperature in September: 65.7°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).

Average pressure in September
Blanchard, OK

Average pressure in September - Blanchard, 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 (29.88"Hg).

Average wind speed in September
Blanchard, OK

Average wind speed in September - Blanchard, OK
  • Average wind speed in September: 8.6mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.4mph).

Average humidity in September
Blanchard, OK

Average humidity in September - Blanchard, OK
  • Average humidity in September: 65%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (58%).

Average rainfall in September
Blanchard, OK

Average rainfall in September - Blanchard, OK
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (0.75").

Average rainfall days in September
Blanchard, OK

Average rainfall days in September - Blanchard, OK
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is December (4.7 days).

Average snowfall in September
Blanchard, OK

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

The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Blanchard, OK

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

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days in September
Blanchard, OK

Average sunshine days in September - Blanchard, OK
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is May (13.6 days).

Average UV index in September
Blanchard, OK

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

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Blanchard, OK

Average cloud cover in September - Blanchard, OK
  • Average cloud cover in September: 26

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Blanchard, OK

Average visibility in September - Blanchard, 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).

Blanchard, Oklahoma, USA

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