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
As September commences, the average high-temperature shows a reduction, transitioning from a sweltering 95.7°F (35.4°C) in August to a hot 86.7°F (30.4°C). During the month of September, an average temperature of 67.8°F (19.9°C) is noted during the nights in Blair, Oklahoma.Heat index
The heat index in September is estimated at a tropical 91.4°F (33°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity in Blair is 58%.Rainfall
In Blair, in September, during 12.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, in Blair, there are 104.5 rainfall days, and 20.59" (523mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Blair, Oklahoma.Daylight
In September, the average length of the day in Blair is 12h and 23min.On the first day of the month, sunrise is at 7:10 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:31 am and sunset at 7:22 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In Blair, Oklahoma, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
How hot is September in Blair?
What is the average humidity in September in Blair?
How many days does it rain in September in Blair?
When it does not snow in Blair?
What is the average length of the day in September in Blair?
When are sunrise and sunset in September in Blair?
How long on average sun shines in September in Blair?
How high is the UV index in September in Blair?
Average temperature in September
Blair, OK
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (51.6°F).
- Average low temperature in September: 67.8°F
The month with the highest average low temperature is July (76.3°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Blair, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Blair, OK
- Average wind speed in September: 9.2mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in September
Blair, OK
- Average humidity in September: 58%
The months with the highest relative humidity are May and December (60%).
The month with the lowest relative humidity is August (49%).
Average rainfall in September
Blair, OK
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are February and November (0.75").
Average rainfall days in September
Blair, OK
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in September
Blair, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Blair, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 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
Blair, 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: 8h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Blair, OK
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is August (15.1 days).
Average UV index in September
Blair, OK
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Blair, OK
- Average cloud cover in September: 24
The month with the most cloud cover is March (Cloud cover 29).
The months with the least cloud cover are June and August (Cloud cover 17).
Average visibility in September
Blair, 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).
Blair, Oklahoma, USA
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