September weather forecastAvalon, MO
September
Weather in September
September, the first month of the autumn in Avalon, is also a moderately hot month, with temperature in the range of an average low of 57.9°F (14.4°C) and an average high of 77.9°F (25.5°C).Temperature
September signifies a minor drop in average high-temperature, transitioning from a moderately hot 83.7°F (28.7°C) in August to a still warm 77.9°F (25.5°C). Throughout September, Avalon witnesses a consistent average low-temperature of 57.9°F (14.4°C).Humidity
In Avalon, the average relative humidity in September is 75%.Rainfall
In Avalon, in September, it is raining for 11.6 days, with typically 2.76" (70mm) of accumulated precipitation. In Avalon, during the entire year, the rain falls for 137.4 days and collects up to 28.82" (732mm) of precipitation.Snowfall
In Avalon, snow does not fall in June through September.Daylight
The average length of the day in September in Avalon is 12h and 26min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:57 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Avalon, MO
- Average high temperature in September: 77.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Avalon, MO
- 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 (29.89"Hg).
Average wind speed in September
Avalon, MO
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Avalon, MO
- Average humidity in September: 75%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Avalon, MO
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in September
Avalon, MO
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Avalon, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Avalon, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Avalon, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Avalon, MO
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in September
Avalon, MO
- Average UV index in September: 5
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
Avalon, MO
- Average cloud cover in September: 30
The months with the most cloud cover are January and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Avalon, MO
- 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).
