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 sees a slight reduction in average high-temperature, with a shift from 93.2°F (34°C) in August to a still hot 87.3°F (30.7°C). Nighttime temperatures in September average to a comfortable 65.8°F (18.8°C).Heat index
The heat index value during September is computed to be a fiery hot 98.6°F (37°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September in Calion is 72%.Rainfall
In Calion, in September, during 11 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Calion, during the entire year, the rain falls for 147.8 days and collects up to 35.47" (901mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Calion, the average length of the day in September is 12h and 22min.On the first day of September in Calion, sunrise is at 6:44 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:55 pm CDT.
Sunshine
In Calion, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
Is it hot in Calion during September?
What is the average humidity in September in Calion?
How many days does it rain in September in Calion?
When it does not snow in Calion?
How many hours of daylight does Calion have in September?
When are sunrise and sunset in September in Calion?
How long on average sun shines in September in Calion?
What is the UV index reading in September in Calion?
Average temperature in September
Calion, AR
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (51.8°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).
Average pressure in September
Calion, AR
- Average pressure in September: 29.99"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
Calion, AR
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Calion, AR
- Average humidity in September: 72%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are July, August and October (71%).
Average rainfall in September
Calion, AR
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is July (2.17").
Average rainfall days in September
Calion, AR
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Calion, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Calion, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 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
Calion, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Calion, AR
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is March (13.8 days).
Average UV index in September
Calion, 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 and December (UV index 3).
Average cloud cover in September
Calion, AR
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in September
Calion, AR
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Calion, Arkansas, USA
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