September weather forecastJoiner, AR
September
Weather in September
September, the first month of the autumn in Joiner, is still a warm month, with an average temperature ranging between min 64.2°F (17.9°C) and max 82.9°F (28.3°C).Temperature
The arrival of September sees an average high-temperature of a moderately hot 82.9°F (28.3°C), hardly diverging from August's 87.3°F (30.7°C). During the month of September, Joiner anticipates a mean low-temperature of 64.2°F (17.9°C).Heat index
The heat index for September is evaluated at a hot 89.6°F (32°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In September, the average relative humidity is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.2 days and typically collects 2.05" (52mm) of precipitation.Snowfall
In Joiner, snow does not fall in April through September.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:45 pm CDT.
Sunshine
In Joiner, Arkansas, the average sunshine in September is 9.7h.UV index
In September, the average daily maximum UV index in Joiner is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Adopt protective measures - It is advised to guard against sun damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Joiner, AR
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (46.2°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in September
Joiner, 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
Joiner, AR
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Joiner, AR
- Average humidity in September: 73%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Joiner, AR
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Joiner, AR
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (16.4 days).
The months with the least rainy days are October and November (9.5 days).
Average snowfall in September
Joiner, 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 and September (0").
Average snowfall days in September
Joiner, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Joiner, AR
- Average daylight in September: 12h and 24min
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 48min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Joiner, AR
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in September
Joiner, AR
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Joiner, AR
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Joiner, 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).
