September weather forecastSwedesburg, IA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Swedesburg, Iowa, with an average temperature ranging between min 56.7°F (13.7°C) and max 76.3°F (24.6°C).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a warm 81.7°F (27.6°C) to a still moderately hot 76.3°F (24.6°C). September is noted for a mean low-temperature of 56.7°F (13.7°C).Humidity
The average relative humidity in September is 75%.Rainfall
In Swedesburg, in September, it is raining for 11.5 days, with typically 2.56" (65mm) of accumulated precipitation. In Swedesburg, during the entire year, the rain falls for 140.1 days and collects up to 29.92" (760mm) of precipitation.Snowfall
In Swedesburg, snow does not fall in May through September.Daylight
In September, the average length of the day in Swedesburg is 12h and 27min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:38 pm. On the last day of September, in Swedesburg, sunrise is at 7:02 am and sunset at 6:49 pm CDT.
Sunshine
In Swedesburg, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Swedesburg, IA
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in September
Swedesburg, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Swedesburg, IA
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
Swedesburg, IA
- Average humidity in September: 75%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Swedesburg, IA
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days in September
Swedesburg, IA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Swedesburg, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Swedesburg, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.6 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
Swedesburg, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Swedesburg, IA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in September
Swedesburg, IA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Swedesburg, IA
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in September
Swedesburg, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
