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's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a tropical 90.9°F (32.7°C) in August to a moderately hot 85.1°F (29.5°C). An average low-temperature of 65.1°F (18.4°C) is common during the nights of September.Heat index
The heat index value for September is calculated to be a hot 93.2°F (34°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Note that heat index values are valued for light wind and location in the shade. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
The average relative humidity in September is 71%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 1.97" (50mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Booker, Arkansas, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:53 pm CDT.
Sunshine
In Booker, the average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
How hot is September in Booker?
What is the average humidity in September in Booker?
What is the driest month in Booker?
How many days does it rain in September in Booker?
When it does not snow in Booker?
What is the average length of the day in September in Booker?
What time are sunrise and sunset in September in Booker?
How long on average sun shines in September in Booker?
What is the UV index reading in September in Booker?
Average temperature in September
Booker, AR
- Average high temperature in September: 85.1°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 (48.6°F).
- Average low temperature in September: 65.1°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 (33.8°F).
Average pressure in September
Booker, AR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Booker, AR
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are February, March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Booker, AR
- Average humidity in September: 71%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Booker, AR
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Booker, AR
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Booker, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Booker, AR
- 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 April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Booker, AR
- 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in September
Booker, AR
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in September
Booker, AR
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Booker, AR
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Booker, AR
- 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).
Booker, Arkansas, USA
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