September weather forecast
Purcell, OK

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Weather in September

September, the first month of the autumn in Purcell, is still a warm month, with an average temperature ranging between max 84.7°F (29.3°C) and min 65.7°F (18.7°C).

Temperature

With September's onset, the weather reveals a slight temperature decrease, transitioning from a hot 93°F (33.9°C) in August to a moderately hot 84.7°F (29.3°C). In the month of September, the average temperature in Purcell dips to an enjoyable 65.7°F (18.7°C) during the night.

Heat index

In September, the heat index is computed to be a tropical 91.4°F (33°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

The average relative humidity in September is 67%.

Rainfall

In Purcell, Oklahoma, in September, during 12.9 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, in Purcell, Oklahoma, there are 116.5 rainfall days, and 24.21" (615mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Purcell.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September, sunrise is at 7:02 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm CDT.

Sunshine

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

UV index

In Purcell, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 suggests this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Updated: Feb 13, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot is September in Purcell?

The high-temperature, in September, in Purcell, records 84.7°F (29.3°C), while the low-temperature is 65.7°F (18.7°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 91.4°F (33°C).

What is the average humidity in September in Purcell?

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

How much does it rain in Purcell in September?

In Purcell, Oklahoma, in September, it is raining for 12.9 days, with typically 2.6" (66mm) of accumulated precipitation.

When it does not snow in Purcell?

May through October are months without snowfall in Purcell.

How many hours of daylight does Purcell have in September?

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

When are sunrise and sunset in September in Purcell?

In September, on the first day of the month, sunrise is at 7:02 am and sunset at 7:55 pm. On the last day of the month, in Purcell, sunrise is at 7:24 am and sunset at 7:14 pm CDT.

How long on average sun shines in September in Purcell?

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

How high is the UV index in September in Purcell?

In September, the average daily maximum UV index in Purcell is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Purcell, OK

Average temperature in September - Purcell, OK
  • Average high temperature in September: 84.7°F

The warmest months (with the highest average high temperature) are July and August (93°F).
The month with the lowest average high temperature is January (49.5°F).

  • Average low temperature in September: 65.7°F

The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure in September
Purcell, OK

Average pressure in September - Purcell, 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
Purcell, OK

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

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).

Average humidity in September
Purcell, OK

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

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (60%).

Average rainfall in September
Purcell, OK

Average rainfall in September - Purcell, OK
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is November (0.98").

Average rainfall days in September
Purcell, OK

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

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in September
Purcell, OK

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

The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Purcell, OK

Average snowfall days in September - Purcell, 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
Purcell, OK

Average daylight in September / Average sunshine in September - Purcell, 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 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in September
Purcell, OK

Average sunshine days in September - Purcell, OK
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is January (24 days).
The month with the least sunshine days is May (14.4 days).

Average UV index in September
Purcell, OK

Average UV index in September - Purcell, 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
Purcell, OK

Average cloud cover in September - Purcell, 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 19).

Average visibility in September
Purcell, OK

Average visibility in September - Purcell, 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).

Purcell, Oklahoma, USA

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