September weather forecast
Calico Rock, AR

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Weather in September

September, the first month of the autumn in Calico Rock, is also a moderately hot month, with an average temperature ranging between max 82.2°F (27.9°C) and min 61.5°F (16.4°C).

Temperature

Calico Rock's September weather shows a modest shift in high-temperatures, falling from August's tropical 89.2°F (31.8°C) to a warm 82.2°F (27.9°C). In the month of September, Calico Rock experiences an average low-temperature of 61.5°F (16.4°C).

Heat index

In September, the heat index is evaluated at a hot 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

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, Arkansas, 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 the month, sunrise is at 6:40 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:53 pm CDT.

Sunshine

The average sunshine in September in Calico Rock is 9.4h.

UV index

In Calico Rock, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What are September temperatures?

The average high-temperature and low-temperature during September are 82.2°F (27.9°C) and 61.5°F (16.4°C) respectively. The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in September is evaluated at 87.8°F (31°C).

What is the average humidity in September in Calico Rock?

In Calico Rock, the average relative humidity in September is 74%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 1.89" (48mm) of precipitation.

How many days does it rain in September?

In Calico Rock, Arkansas, in September, it is raining for 12.9 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow?

In Calico Rock, snow does not fall in April through October.

How many hours of daylight does Calico Rock have in September?

In Calico Rock, the average day length in September is 12h and 23min.

When are sunrise and sunset in September in Calico Rock?

In September, on the first day of the month, 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.

How long on average sun shines in September in Calico Rock?

In Calico Rock, the average sunshine duration in September is 9.4h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Calico Rock, AR

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / 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 - 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 - 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 - 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 - 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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