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 suggests a slight decrease in the average high-temperature, moving from a hot 90.9°F (32.7°C) in August to a warm 85.1°F (29.5°C). September nights are marked by an average low-temperature of 65.1°F (18.4°C).Heat index
The heat index value for September is estimated at a hot 93.2°F (34°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in September is 71%.Rainfall
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 1.97" (50mm) of precipitation.Snowfall
April through October 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 6:42 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:54 pm CDT.
Sunshine
The average sunshine in September is 9.8h.UV index
In Amboy, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When 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
Amboy, AR
- Average high temperature in September: 85.1°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 (48.6°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).
Average pressure in September
Amboy, 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
Amboy, AR
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are February, March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Amboy, AR
- Average humidity in September: 71%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Amboy, AR
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Amboy, AR
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Amboy, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Amboy, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Amboy, 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 54min).
- 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: 5h and 12min).
Average sunshine days in September
Amboy, AR
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in September
Amboy, AR
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Amboy, AR
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Amboy, 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).
Amboy, Arkansas, USA
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