September weather forecastSwedeborg, MO
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Swedeborg, Missouri, with an average temperature fluctuating between 80.1°F (26.7°C) and 59.7°F (15.4°C).Temperature
The start of September signals a gentle decrease in the average high-temperature, transitioning from a hot 87.4°F (30.8°C) in August to a warm 80.1°F (26.7°C). September nights experience a consistent temperature drop to a refreshing 59.7°F (15.4°C).Humidity
July through November, with an average relative humidity of 73%, are the least humid months in Swedeborg.Rainfall
In Swedeborg, during September, the rain falls for 10 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 113.6 rainfall days, and 12.72" (323mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Swedeborg.Daylight
In Swedeborg, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:53 pm CDT.
Sunshine
In Swedeborg, the average sunshine in September is 9.6h.UV index
In Swedeborg, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 during September leads to these advisories:
Ensure safety - Recommendations to avert sunburn are presented. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Swedeborg, MO
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in September: 59.7°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Swedeborg, MO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Swedeborg, MO
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in September
Swedeborg, MO
- Average humidity in September: 73%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are July, August, September, October and November (73%).
Average rainfall in September
Swedeborg, MO
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are January and February (0.51").
Average rainfall days in September
Swedeborg, MO
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is May (14.2 days).
The months with the least rainy days are January and December (4.8 days).
Average snowfall in September
Swedeborg, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Swedeborg, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Swedeborg, MO
- Average daylight in September: 12h and 24min
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 36min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Swedeborg, MO
- Average sunshine days in September: 18 days
The month with the most sunshine days is December (23.4 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Swedeborg, 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 and December (UV index 2).
Average cloud cover in September
Swedeborg, MO
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Swedeborg, MO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
