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
In September, the average high-temperature marginally drops from a hot 89.4°F (31.9°C) in August to a moderately hot 82°F (27.8°C). The average low-temperature, in Mountain View, Arkansas, is 61.3°F (16.3°C).Heat index
The average heat index in September is evaluated at a tropical 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like pregnancy, differences in body mass, height, and shape, wind, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in September in Mountain View is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 12.9 days and accumulates 1.97" (50mm) of precipitation.Snowfall
In Mountain View, snow does not fall in May through October.Daylight
In Mountain View, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:54 pm CDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Mountain View, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
FAQ
What is the temperature in September in Mountain View?
What is the average humidity in September in Mountain View?
What is the driest month in Mountain View?
How much does it rain in Mountain View in September?
When it does not snow in Mountain View?
What is the average length of the day in September in Mountain View?
What time are sunrise and sunset in September in Mountain View?
How long on average sun shines in September in Mountain View?
What is the UV index reading in September in Mountain View?
Average temperature in September
Mountain View, AR
- Average high temperature in September: 82°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in September
Mountain View, 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
Mountain View, AR
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Mountain View, AR
- Average humidity in September: 75%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Mountain View, AR
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Mountain View, AR
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Mountain View, AR
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mountain View, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Mountain View, AR
- Average daylight in September: 12h and 23min
The month with the longest days is June (Average daylight: 14h and 33min).
The month with the shortest days is December (Average daylight: 9h and 46min).
- Average sunshine in September: 9h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Mountain View, AR
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is August (10.8 days).
Average UV index in September
Mountain View, AR
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Mountain View, AR
- Average cloud cover in September: 29
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Mountain View, AR
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
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