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
The arrival of September brings an average high-temperature of a still tropical 86°F (30°C), closely following the temperature pattern of August. In the month of September, the average temperature dips to an enjoyable 67.3°F (19.6°C) during the night.Heat index
The heat index value for September is calculated to be a very hot 96.8°F (36°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In September, the average relative humidity is 72%.Rainfall
In Jennie, in September, it is raining for 12.8 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 158.8 rainfall days, and 40.67" (1033mm) of precipitation is accumulated.Snowfall
In Jennie, snow does not fall in April through October and December.Daylight
In Jennie, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:39 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:50 pm CDT.
Sunshine
In September, the average sunshine is 9.9h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Jennie, AR
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in September: 67.3°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in September
Jennie, AR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Jennie, AR
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Jennie, AR
- Average humidity in September: 72%
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Jennie, AR
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is November (2.44").
Average rainfall days in September
Jennie, AR
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.3 days).
Average snowfall in September
Jennie, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Jennie, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Jennie, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 5min
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 48min).
Average sunshine days in September
Jennie, AR
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (12 days).
Average UV index in September
Jennie, AR
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Jennie, AR
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Jennie, 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).
Jennie, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location