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
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a tropical 86.4°F (30.2°C) to a warm 79.5°F (26.4°C). During the month of September, an average temperature of 60.3°F (15.7°C) is noted during the nights in Alta Vista.Humidity
In September, the average relative humidity in Alta Vista is 70%.Rainfall
In September, the rain falls for 11 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Alta Vista, there are 111.2 rainfall days, and 18.62" (473mm) of precipitation is accumulated.Snowfall
In Alta Vista, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Alta Vista, sunrise is at 6:55 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:09 pm CDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Alta Vista have in September?
How high is the UV index in September?
Average temperature in September
Alta Vista, KS
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in September
Alta Vista, KS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Alta Vista, KS
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in September
Alta Vista, KS
- Average humidity in September: 70%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is October (64%).
Average rainfall in September
Alta Vista, KS
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in September
Alta Vista, KS
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in September
Alta Vista, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Alta Vista, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alta Vista, KS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 42min).
Average sunshine days in September
Alta Vista, KS
- Average sunshine days in September: 17 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is July (13.7 days).
Average UV index in September
Alta Vista, KS
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Alta Vista, KS
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in September
Alta Vista, KS
- 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).
Alta Vista, Kansas, USA
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