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 onset of September brings an average high-temperature of a warm 82°F (27.8°C), nearly matching the August temperature. In September, Otwell reports a consistent average low-temperature of 64°F (17.8°C) during the nights.Heat index
The average heat index in September is evaluated at a hot 87.8°F (31°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. 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 an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In September, the average relative humidity is 73%.Rainfall
In Otwell, during September, the rain falls for 11.4 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 145.9 rainfall days, and 29.37" (746mm) of precipitation is accumulated.Snowfall
April through September are months without snowfall in Otwell.Daylight
The average length of the day in September in Otwell is 12h and 23min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:30 pm. On the last day of September, in Otwell, sunrise is at 6:58 am and sunset at 6:48 pm CDT.
Sunshine
The average sunshine in September in Otwell is 9.7h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 in September translates into these instructions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the usual temperature for Otwell in September?
What is the average humidity in September in Otwell?
How many days does it rain in September in Otwell?
When it does not snow in Otwell?
Does it snow in Otwell in September?
How many hours of daylight does Otwell have in September?
When are sunrise and sunset in September in Otwell?
How long on average sun shines in September in Otwell?
How high is the UV index in September in Otwell?
Average temperature in September
Otwell, AR
- Average high temperature in September: 82°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 64°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 (32°F).
Average pressure in September
Otwell, 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
Otwell, AR
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Otwell, 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
Otwell, AR
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in September
Otwell, AR
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in September
Otwell, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Otwell, AR
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.8 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
Otwell, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Otwell, AR
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in September
Otwell, AR
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Otwell, 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 24).
Average visibility in September
Otwell, 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).
Otwell, Arkansas, USA
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