Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the onset of September, Cookson experiences a modest temperature adjustment, with the average high-temperature gently receding from a tropical 91°F (32.8°C) in August to a warm 84°F (28.9°C). An average low-temperature of 63.1°F (17.3°C) is observed during the September nights.Heat index
In September, the heat index is computed to be a tropical 91.4°F (33°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Heat index determinations are made taking into account the shade and light air movements. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
In September, the average relative humidity is 71%.Rainfall
In Cookson, during September, the rain falls for 9.4 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Cookson, during the entire year, the rain falls for 96.8 days and collects up to 10.79" (274mm) of precipitation.Snowfall
In Cookson, snow does not fall in April through October and December.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:46 pm. On the last day of September, in Cookson, sunrise is at 7:14 am and sunset at 7:04 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Cookson have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Cookson have in September?
What is the UV index intensity in September?
Average temperature in September
Cookson, OK
- Average high temperature in September: 84°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Cookson, OK
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Cookson, OK
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are March and April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Cookson, OK
- Average humidity in September: 71%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Cookson, OK
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are February, November and December (0.51").
Average rainfall days in September
Cookson, OK
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is May (12 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in September
Cookson, OK
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Cookson, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cookson, 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: 9h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Cookson, OK
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is May (15.6 days).
Average UV index in September
Cookson, 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
Cookson, OK
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Cookson, 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).
Cookson, Oklahoma, USA
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