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
September signals a slight drop in average high-temperature, sliding from August's hot 92.1°F (33.4°C) to a warm 85.1°F (29.5°C). September nights in Haileyville cool down to an average low-temperature of 64.6°F (18.1°C).Heat index
September's heat index is calculated to be a hot 93.2°F (34°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.For clarity, heat index numbers account for light winds and areas under shade. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in September in Haileyville is 70%.Rainfall
In September, the rain falls for 12 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. In Haileyville, during the entire year, the rain falls for 128.5 days and collects up to 24.25" (616mm) of precipitation.Snowfall
In Haileyville, snow does not fall in May through October.Daylight
In Haileyville, Oklahoma, the average length of the day in September is 12h and 23min.On the first day of September in Haileyville, sunrise is at 6:55 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:07 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In Haileyville, Oklahoma, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during September leads to these instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
How hot does it get in Haileyville in September?
What is the average humidity in September in Haileyville?
How much does it rain in Haileyville in September?
When it does not snow in Haileyville?
How many hours of daylight does Haileyville have in September?
What time are sunrise and sunset in September in Haileyville?
How many hours of sunshine does Haileyville have in September?
How high is the UV index in September in Haileyville?
Average temperature in September
Haileyville, OK
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in September
Haileyville, 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 (29.91"Hg).
Average wind speed in September
Haileyville, OK
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Haileyville, OK
- Average humidity in September: 70%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Haileyville, OK
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in September
Haileyville, OK
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in September
Haileyville, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Haileyville, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Haileyville, 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 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Haileyville, OK
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is July (14.4 days).
Average UV index in September
Haileyville, OK
- Average UV index in September: 5
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
Haileyville, OK
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Haileyville, 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).
Haileyville, Oklahoma, USA
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