September weather forecast
Countyline, OK

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Weather in September

The first month of the autumn, September, is still a warm month in Countyline, Oklahoma, with an average temperature varying between 66.2°F (19°C) and 85.3°F (29.6°C).

Temperature

In September, the average high-temperature decreases from a hot 94.6°F (34.8°C) in August to a warm 85.3°F (29.6°C). Countyline records a consistent low-temperature of 66.2°F (19°C) during September nights.

Heat index

The heat index value for September is calculated to be a tropical 91.4°F (33°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Heat index determinations are made taking into account the shade and light air movements. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

In Countyline, Oklahoma, the average relative humidity in September is 64%.

Rainfall

In September, in Countyline, the rain falls for 13 days. Throughout September, 2.8" (71mm) of precipitation is accumulated. In Countyline, during the entire year, the rain falls for 124.2 days and collects up to 25.43" (646mm) of precipitation.

Snowfall

In Countyline, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September in Countyline, sunrise is at 7:04 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:15 pm CDT.

Sunshine

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

UV index

In September, the average daily maximum UV index in Countyline, Oklahoma, is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 5 in September translates into these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

How hot is September in Countyline?

In Countyline, 85.3°F (29.6°C) is the average high-temperature and 66.2°F (19°C) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 91.4°F (33°C).

What is the average humidity in September in Countyline?

The average relative humidity in September in Countyline, Oklahoma, is 64%.

How much does it rain in Countyline in September?

In Countyline, Oklahoma, in September, during 13 rainfall days, 2.8" (71mm) of precipitation is typically accumulated.

When it does not snow in Countyline?

May through October are months without snowfall in Countyline, Oklahoma.

How many hours of daylight does Countyline have in September?

In Countyline, the average day length in September is 12h and 23min.

When is the sunrise / sunset in September in Countyline?

On the first day of September in Countyline, Oklahoma, sunrise is at 7:04 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:15 pm CDT.

How long on average sun shines in September in Countyline?

In Countyline, Oklahoma, the average sunshine duration in September is 8.5h.

What is the UV index reading in September in Countyline?

In Countyline, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Countyline, OK

Average temperature in September - Countyline, OK
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in September: 66.2°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in September
Countyline, OK

Average pressure in September - Countyline, 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).

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Average wind speed in September
Countyline, OK

Average wind speed in September - Countyline, OK
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).

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Average humidity in September
Countyline, OK

Average humidity in September - Countyline, OK
  • Average humidity in September: 64%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in September
Countyline, OK

Average rainfall in September - Countyline, OK
  • Average rainfall in September: 2.8"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and November (1.1").

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Average rainfall days in September
Countyline, OK

Average rainfall days in September - Countyline, OK
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (5.5 days).

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Average snowfall in September
Countyline, OK

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

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Countyline, OK

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

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Countyline, 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 July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Countyline, OK

Average sunshine days in September - Countyline, OK
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in September
Countyline, OK

Average UV index in September - Countyline, 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).

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Average cloud cover in September
Countyline, OK

Average cloud cover in September - Countyline, OK
  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in September
Countyline, OK

Average visibility in September - Countyline, 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).

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Countyline, Oklahoma, USA

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