September weather forecastMcCaskill, AR
September
Weather in September
The first month of the autumn, September, is still a tropical month in McCaskill, Arkansas, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 86.4°F (30.2°C).Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from a tropical 92.5°F (33.6°C) in August to a still hot 86.4°F (30.2°C). An average minimum temperature of 64.9°F (18.3°C) marks the month of September.Heat index
For most parts of September, the heat index is appraised at a very hot 96.8°F (36°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
The average relative humidity in September is 71%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.61" (41mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In McCaskill, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:48 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:59 pm CDT.
Sunshine
In McCaskill, the average sunshine in September is 9.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
McCaskill, AR
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in September
McCaskill, AR
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
McCaskill, AR
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
McCaskill, AR
- Average humidity in September: 71%
The months with the highest relative humidity are February and March (80%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
McCaskill, AR
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
McCaskill, AR
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
McCaskill, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
McCaskill, AR
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
McCaskill, AR
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
McCaskill, AR
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is February (13.9 days).
Average UV index in September
McCaskill, AR
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
McCaskill, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
McCaskill, AR
- Average visibility in September: 6mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
