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
Booker's progression into September involves a minor drop in the average high-temperature, slightly receding from a hot 90.9°F (32.7°C) in August to a moderately hot 85.1°F (29.5°C). In Booker, an average nighttime temperature of 65.1°F (18.4°C) is expected during September.Heat index
The heat index value for September is calculated to be a tropical 93.2°F (34°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In Booker, the average relative humidity in September is 71%.Rainfall
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.97" (50mm) of precipitation.Snowfall
In Booker, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:42 am and sunset at 7:34 pm. On the last day of the month, 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
In Booker, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
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
Weather forecast for your location
2. Allow the app to use your location