September weather forecast
Guymon, OK

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Weather in September

September marks the transition from summer to fall in Guymon. The temperatures slowly decrease, resulting in an average high and low of 84.4°F (29.1°C) and 63°F (17.2°C) respectively. Changes become quite apparent as the rainy days start decreasing, and the days start getting shorter. The winds maintain a steady speed helping to keep the city pleasant despite the dwindling temperatures. Sunshine hours also begin to decrease, signalling the beginning of the end of the hot season.

Temperature

The arrival of September correlates with a minor temperature reduction, down from August's tropical 91.9°F (33.3°C) to a warm 84.4°F (29.1°C). The average low-temperature of 63°F (17.2°C) is witnessed in Guymon during September.

Heat index

September's mean heat index is estimated at a tropical 86°F (30°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

In September, the average relative humidity in Guymon is 50%.

Rainfall

In September, the rain falls for 9.9 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Guymon, during the entire year, the rain falls for 88.2 days and collects up to 13.39" (340mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of the month, sunrise is at 7:17 am and sunset at 8:13 pm. On the last day of September, sunrise is at 7:40 am and sunset at 7:30 pm CDT.

Sunshine

The average sunshine in September in Guymon is 9.3h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

How hot is it in Guymon in September?

September temperatures vary between a high-temperature of 84.4°F (29.1°C) and a low-temperature of 63°F (17.2°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 86°F (30°C).

What is the average humidity in September in Guymon?

In Guymon, Oklahoma, the average relative humidity in September is 50%.

How much does it rain in Guymon in September?

In Guymon, in September, it is raining for 9.9 days, with typically 1.02" (26mm) of accumulated precipitation.

When it does not snow in Guymon?

In Guymon, snow does not fall in May through September.

Does it snow in Guymon in September?

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

How many hours of daylight does Guymon have in September?

In September, the average day length in Guymon, Oklahoma, is 12h and 24min.

What time are sunrise and sunset in September in Guymon?

On the first day of September in Guymon, Oklahoma, sunrise is at 7:17 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 7:30 pm CDT.

How long on average sun shines in September in Guymon?

In September, the average sunshine duration is 9.3h.

What is the UV index reading in September in Guymon?

In Guymon, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from 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
Guymon, OK

Average temperature in September - Guymon, OK
  • Average high temperature in September: 84.4°F

The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (47.7°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (72.1°F).
The coldest months (with the lowest average low temperature) are January and December (28.9°F).

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Average pressure in September
Guymon, OK

Average pressure in September - Guymon, OK
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).

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Average wind speed in September
Guymon, OK

Average wind speed in September - Guymon, OK
  • Average wind speed in September: 12.1mph

The windiest month (with the highest average wind speed) is June (13.4mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).

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Average humidity in September
Guymon, OK

Average humidity in September - Guymon, OK
  • Average humidity in September: 50%

The month with the highest relative humidity is December (56%).
The month with the lowest relative humidity is June (44%).

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Average rainfall in September
Guymon, OK

Average rainfall in September - Guymon, OK
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is November (0.35").

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Average rainfall days in September
Guymon, OK

Average rainfall days in September - Guymon, OK
  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (2.5 days).

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Average snowfall in September
Guymon, OK

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

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Guymon, OK

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

The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Guymon, 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: 9h and 2min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in September
Guymon, OK

Average sunshine days in September - Guymon, OK
  • Average sunshine days in September: 17 days

The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is July (12.7 days).

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Average UV index in September
Guymon, OK

Average UV index in September - Guymon, OK
  • Average UV index in September: 6

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
Guymon, OK

Average cloud cover in September - Guymon, OK
  • Average cloud cover in September: 18

The month with the most cloud cover is February (Cloud cover 26).
The month with the least cloud cover is June (Cloud cover 15).

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Average visibility in September
Guymon, OK

Average visibility in September - Guymon, 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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Guymon, Oklahoma, USA

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