September weather forecast
Glencoe, OK

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Weather in September

September, the first month of the autumn in Glencoe, is also a moderately hot month, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 84.2°F (29°C).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a hot 91.9°F (33.3°C) in August to a moderately hot 84.2°F (29°C). Throughout the month of September, Glencoe reports a steady low-temperature average of 64.2°F (17.9°C).

Heat index

In September, the heat index is appraised at a tropical 89.6°F (32°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

In Glencoe, the average relative humidity in September is 67%.

Rainfall

In Glencoe, in September, during 11.7 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, in Glencoe, Oklahoma, there are 122.5 rainfall days, and 24.65" (626mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Glencoe, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:59 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:12 pm CDT.

Sunshine

In Glencoe, the average sunshine in September is 8.6h.

UV index

In Glencoe, 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 the average person.
Note: The UV index of 5 during September translates into the following guidance:
Take necessary precautions - Defending against sun damage is advocated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

Is it hot during September?

In September, in Glencoe, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 64.2°F (17.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September is 67%.

How many days does it rain in September?

In Glencoe, in September, during 11.7 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow?

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

How many hours of daylight does Glencoe have in September?

The average day length in September is 12h and 24min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:59 am and sunset at 7:55 pm. On the last day of the month, in Glencoe, sunrise is at 7:22 am and sunset at 7:12 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.6h.

How high is the UV index in September?

In Glencoe, Oklahoma, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's 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
Glencoe, OK

Average temperature in September - Glencoe, OK
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (47.7°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).

Average pressure in September
Glencoe, OK

Average pressure in September - Glencoe, OK
  • Average pressure in September: 29.98"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
Glencoe, OK

Average wind speed in September - Glencoe, OK
  • Average wind speed in September: 8.4mph

The windiest months (with the highest average wind speed) are March and April (11.4mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).

Average humidity in September
Glencoe, OK

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

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (63%).

Average rainfall in September
Glencoe, OK

Average rainfall in September - Glencoe, OK
  • Average rainfall in September: 2.99"

The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is December (0.87").

Average rainfall days in September
Glencoe, OK

Average rainfall days in September - Glencoe, OK
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in September
Glencoe, OK

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

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Glencoe, OK

Average snowfall days in September - Glencoe, 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).

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

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in September
Glencoe, OK

Average sunshine days in September - Glencoe, OK
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is May (14.5 days).

Average UV index in September
Glencoe, OK

Average UV index in September - Glencoe, 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
Glencoe, OK

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

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).

Average visibility in September
Glencoe, OK

Average visibility in September - Glencoe, 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).

Glencoe, Oklahoma, USA

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