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 reveals a small adjustment in temperature, transitioning from an average high of a tropical 87.8°F (31°C) in August to a moderately hot 82.2°F (27.9°C). The nighttime temperature, during September, averages of 63.7°F (17.6°C).Heat index
September's average heat index is calculated to be a tropical 87.8°F (31°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. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In Risher, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 2.48" (63mm) of precipitation.Snowfall
April through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:48 pm CDT.
Sunshine
In September, the average sunshine is 9.8h.UV index
In Risher, Arkansas, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Risher in September?
What is the average humidity in September?
What is the driest month in Risher?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September in Risher?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Risher, AR
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (45.3°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in September
Risher, 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 (29.93"Hg).
Average wind speed in September
Risher, AR
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is February (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Risher, AR
- Average humidity in September: 73%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Risher, AR
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is April (4.61").
The driest month (with the least rainfall) is September (2.48").
Average rainfall days in September
Risher, AR
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in September
Risher, AR
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.26").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Risher, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Risher, AR
- Average daylight in September: 12h and 2min
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 5min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Risher, AR
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is July (11 days).
Average UV index in September
Risher, AR
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Risher, AR
- Average cloud cover in September: 27
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 23).
Average visibility in September
Risher, 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).
Risher, Arkansas, USA
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