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 indicates a minor shift in the average high-temperature, from August's moderately hot 81.1°F to a still warm 73.6°F. Despite a significant disparity with daytime temperatures, an average low-temperature of 47.8°F is recorded in Austin during September.Humidity
In Austin, the average relative humidity in September is 46%.Rainfall
In September, the rain falls for 10.6 days. Throughout September, 1.42" of precipitation is accumulated. In Austin, during the entire year, the rain falls for 120.8 days and collects up to 14.06" of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Austin, Colorado, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:56 pm MDT.
Sunshine
The average sunshine in September is 11h.UV index
In September, the average daily maximum UV index in Austin, Colorado, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
FAQ
What are the temperatures in Austin in September?
What is the average humidity in September in Austin?
How much does it rain in Austin in September?
When it does not snow in Austin?
Does it snow in Austin in September?
What is the average length of the day in September in Austin?
When is the sunrise / sunset in September in Austin?
How many hours of sunshine does Austin have in September?
What is the UV index intensity in September in Austin?
Average temperature in September
Austin, CO
- Average high temperature in September: 73.6°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in September: 47.8°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in September
Austin, CO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is May (29.92"Hg).
Average wind speed in September
Austin, CO
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is June (7mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).
Average humidity in September
Austin, CO
- Average humidity in September: 46%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (34%).
Average rainfall in September
Austin, CO
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is June (0.71").
Average rainfall days in September
Austin, CO
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is April (13.8 days).
The month with the least rainy days is June (6.8 days).
Average snowfall in September
Austin, CO
- Average snowfall in September: 0"
The month with the highest snowfall is December (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Austin, CO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Austin, CO
- 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: 11h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
Austin, CO
- Average sunshine days in September: 15.5 days
The months with the most sunshine days are June and November (20.4 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in September
Austin, CO
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Austin, CO
- Average cloud cover in September: 13
The months with the most cloud cover are January and February (Cloud cover 33).
The month with the least cloud cover is June (Cloud cover 11).
Average visibility in September
Austin, CO
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Austin, Colorado, USA
Weather forecast for your location
2. Allow the app to use your location
