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
The onset of September results in a small decrease in the average high-temperature, moderately receding from 93.7°F (34.3°C) in August to a still hot 87.3°F (30.7°C). From the height of daytime heat, the temperature recedes to an average of 65.7°F (18.7°C) at night during September.Heat index
September's heat index is calculated to be a torrid 96.8°F (36°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In Garvin, the average relative humidity in September is 68%.Rainfall
September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 2.32" (59mm) of precipitation.Snowfall
In Garvin, snow does not fall in April through November.Daylight
The average length of the day in September in Garvin is 12h and 22min.On the first day of September, sunrise is at 6:53 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:04 pm CDT.
Sunshine
In Garvin, Oklahoma, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Garvin is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
How hot is it in Garvin in September?
What is the average humidity in September in Garvin?
What is the driest month in Garvin?
How many days does it rain in September in Garvin?
When it does not snow in Garvin?
How many hours of daylight does Garvin have in September?
When are sunrise and sunset in September in Garvin?
How many hours of sunshine does Garvin have in September?
What is the UV index reading in September in Garvin?
Average temperature in September
Garvin, OK
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (93.7°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Garvin, OK
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Garvin, OK
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Garvin, OK
- Average humidity in September: 68%
The months with the highest relative humidity are February, March and May (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Garvin, OK
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is May (5.24").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in September
Garvin, OK
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is March (15 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Garvin, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Garvin, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Garvin, 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: 9h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Garvin, OK
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in September
Garvin, OK
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Garvin, OK
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Garvin, 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).
Garvin, Oklahoma, USA
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