September weather forecastAult, CO
September
Weather in September
September, the first month of the autumn in Ault, is also a moderately hot month, with temperature in the range of an average low of 53.2°F (11.8°C) and an average high of 79.3°F (26.3°C).Temperature
The transition to September results in a modest reduction in average high-temperature, moving from a hot 87.1°F (30.6°C) in August to a moderately hot 79.3°F (26.3°C). Ault registers a prominent dip from daytime highs, with an average of 53.2°F (11.8°C) during the nights of September.Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 44%.Rainfall
In Ault, during September, the rain falls for 9.5 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 108.3 rainfall days, and 12.32" (313mm) of precipitation is accumulated.Snowfall
In Ault, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:42 pm MDT.
Sunshine
In September, the average sunshine is 10.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ault, CO
- Average high temperature in September: 79.3°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in September: 53.2°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in September
Ault, CO
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Ault, CO
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Ault, CO
- Average humidity in September: 44%
The month with the highest relative humidity is December (64%).
The months with the lowest relative humidity are August and September (44%).
Average rainfall in September
Ault, CO
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and December (0.31").
Average rainfall days in September
Ault, CO
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in September
Ault, CO
- Average snowfall in September: 0"
The month with the highest snowfall is April (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Ault, CO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Ault, CO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in September
Ault, CO
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in September
Ault, CO
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Ault, CO
- Average cloud cover in September: 18
The months with the most cloud cover are February and April (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in September
Ault, CO
- 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).
