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 arrival subtly correlates with a reduction in the average high-temperature, down from a hot 89.2°F (31.8°C) in August to a warm 82.2°F (27.9°C). An average low-temperature of 61.5°F (16.4°C) is observed during the September nights.Heat index
The heat index for September is appraised at a hot 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Humidity
In Calico Rock, the average relative humidity in September is 74%.Rainfall
September is the month with the least rainfall in Calico Rock. Rain falls for 12.9 days and accumulates 1.89" (48mm) of precipitation.Snowfall
In Calico Rock, snow does not fall in April through October.Daylight
In September, the average length of the day in Calico Rock is 12h and 23min.On the first day of September in Calico Rock, sunrise is at 6:40 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:53 pm CDT.
Sunshine
In Calico Rock, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index in Calico Rock is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What are September temperatures in Calico Rock?
What is the average humidity in September in Calico Rock?
What is the driest month in Calico Rock?
How much does it rain in Calico Rock in September?
When it does not snow in Calico Rock?
How many hours of daylight does Calico Rock have in September?
When are sunrise and sunset in September in Calico Rock?
How long on average sun shines in September in Calico Rock?
What is the UV index reading in September in Calico Rock?
Average temperature in September
Calico Rock, AR
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Calico Rock, AR
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Calico Rock, AR
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Calico Rock, AR
- Average humidity in September: 74%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Calico Rock, AR
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Calico Rock, AR
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Calico Rock, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Calico Rock, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 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
Calico Rock, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 2min
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 0min).
Average sunshine days in September
Calico Rock, AR
- Average sunshine days in September: 14 days
The months with the most sunshine days are January and December (19.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Calico Rock, AR
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Calico Rock, AR
- Average cloud cover in September: 30
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Calico Rock, AR
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Calico Rock, Arkansas, USA
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