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 commencement of September indicates a gentle shift in the average high-temperature, receding from August's 93.4°F (34.1°C) to a still tropical 87.3°F (30.7°C). Waldo's temperature lowers to a mean of 65.8°F (18.8°C) during the nights in September.Heat index
September's average heat index is evaluated at a very hot 98.6°F (37°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In September, the average relative humidity is 71%.Rainfall
In Waldo, in September, it is raining for 12.8 days, with typically 2.83" (72mm) of accumulated precipitation. In Waldo, during the entire year, the rain falls for 160.9 days and collects up to 39.61" (1006mm) of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
In Waldo, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:47 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:58 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Waldo, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.
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?
How many days 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 intensity in September?
Average temperature in September
Waldo, AR
- Average high temperature in September: 87.3°F
The warmest months (with the highest average high temperature) are July and August (93.4°F).
The month with the lowest average high temperature is January (51.8°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).
Average pressure in September
Waldo, AR
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Waldo, AR
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Waldo, AR
- Average humidity in September: 71%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Waldo, AR
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is April (5.08").
The driest month (with the least rainfall) is November (2.36").
Average rainfall days in September
Waldo, AR
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is October (10.3 days).
Average snowfall in September
Waldo, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Waldo, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 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
Waldo, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Waldo, AR
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is February (13 days).
Average UV index in September
Waldo, AR
- Average UV index in September: 6
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
Waldo, AR
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Waldo, AR
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Waldo, Arkansas, USA
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