September weather forecastBayard, IA
September
Weather in September
The first month of the autumn, September, is still a warm month in Bayard, Iowa, with an average temperature varying between 74.7°F (23.7°C) and 55.9°F (13.3°C).Temperature
In September, the average high-temperature marginally drops from a moderately hot 80.2°F (26.8°C) in August to a still warm 74.7°F (23.7°C). During September nights, Bayard witnesses a consistent average temperature of 55.9°F (13.3°C).Humidity
In September, the average relative humidity is 76%.Rainfall
In Bayard, during September, the rain falls for 12.1 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, there are 137.1 rainfall days, and 28.62" (727mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:44 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:01 pm CDT.
Sunshine
In Bayard, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Bayard is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Take necessary precautions - Defending against sun damage is advocated. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bayard, IA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Bayard, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Bayard, IA
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Bayard, IA
- Average humidity in September: 76%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Bayard, IA
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is June (4.41").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Bayard, IA
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in September
Bayard, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bayard, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bayard, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Bayard, IA
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in September
Bayard, IA
- 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, October, November and December (UV index 2).
Average cloud cover in September
Bayard, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Bayard, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
