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 onset corresponds with a subtle shift in the average high-temperature, slightly moving from a hot 91.2°F (32.9°C) in August to a moderately hot 84.9°F (29.4°C). Fountain Lake, after hot September days, encounters a marked drop to an average nighttime temperature of 63.3°F (17.4°C).Heat index
The heat index for September is appraised at a hot 93.2°F (34°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. 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. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In September, the average relative humidity is 73%.Rainfall
The month with the least rainfall in Fountain Lake is September, when the rain falls for 13.2 days and typically collects 2.17" (55mm) of precipitation.Snowfall
In Fountain Lake, 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 September, sunrise is at 6:45 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:56 pm CDT.
Sunshine
In Fountain Lake, the average sunshine in September is 9.4h.UV index
In Fountain Lake, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Ensure safety - Sun damage prevention is strongly urged. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. 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
How hot does it get in Fountain Lake in September?
What is the average humidity in September in Fountain Lake?
What is the driest month in Fountain Lake?
How many days does it rain in September in Fountain Lake?
When it does not snow in Fountain Lake?
What is the average length of the day in September in Fountain Lake?
When is the sunrise / sunset in September in Fountain Lake?
How many hours of sunshine does Fountain Lake have in September?
What is the UV index reading in September in Fountain Lake?
Average temperature in September
Fountain Lake, AR
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).
Average pressure in September
Fountain Lake, 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
Fountain Lake, AR
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Fountain Lake, AR
- Average humidity in September: 73%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Fountain Lake, AR
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in September
Fountain Lake, AR
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
Fountain Lake, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Fountain Lake, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Fountain Lake, AR
- Average daylight in September: 12h and 2min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Fountain Lake, AR
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Fountain Lake, AR
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Fountain Lake, AR
- Average cloud cover in September: 29
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in September
Fountain Lake, 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).
Fountain Lake, Arkansas, USA
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