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 84.4°F (29.1°C). Throughout September nights, a significant departure from daytime temperatures, with an average low of 62.4°F (16.9°C), is recognized in Blue Mountain.Heat index
The average heat index in September is evaluated at a tropical 91.4°F (33°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The average relative humidity in September in Blue Mountain is 72%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.7 days and typically collects 0.87" (22mm) of precipitation.Snowfall
In Blue Mountain, snow does not fall in April through October.Daylight
In Blue Mountain, Arkansas, the average length of the day in September is 12h and 23min.On the first day of September in Blue Mountain, sunrise is at 6:48 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:59 pm CDT.
Sunshine
In Blue Mountain, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index in Blue Mountain, Arkansas, is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
Is it hot in Blue Mountain during September?
What is the average humidity in September in Blue Mountain?
What is the driest month in Blue Mountain?
How many days does it rain in September in Blue Mountain?
When it does not snow in Blue Mountain?
How many hours of daylight does Blue Mountain have in September?
What time are sunrise and sunset in September in Blue Mountain?
How long on average sun shines in September in Blue Mountain?
What is the UV index reading in September in Blue Mountain?
Average temperature in September
Blue Mountain, AR
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Blue Mountain, 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
Blue Mountain, AR
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Blue Mountain, AR
- Average humidity in September: 72%
The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in September
Blue Mountain, AR
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in September
Blue Mountain, AR
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (12.9 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in September
Blue Mountain, AR
- Average snowfall in September: 0"
The months with the highest snowfall are January, February and December (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Blue Mountain, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.9 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
Blue Mountain, 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 July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Blue Mountain, AR
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in September
Blue Mountain, 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
Blue Mountain, AR
- Average cloud cover in September: 26
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Blue Mountain, AR
- Average visibility in September: 6mi
The months with the highest visibility are February, March, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, April and May (5mi).
Blue Mountain, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location
