Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As September commences, the average high-temperature subtly reduces, transitioning from a moderately hot 78.4°F (25.8°C) in August to an agreeable 72.5°F (22.5°C). In the month of September, the nighttime temperature dips to a steady average of 53.1°F (11.7°C).Humidity
In Ballyclough, the average relative humidity in September is 79%.Rainfall
In Ballyclough, Iowa, in September, it is raining for 11.7 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, in Ballyclough, there are 140.9 rainfall days, and 28.11" (714mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Ballyclough.Daylight
In September, the average length of the day in Ballyclough, Iowa, is 12h and 28min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:36 pm. On the last day of September, in Ballyclough, sunrise is at 6:59 am and sunset at 6:45 pm CDT.
Sunshine
In Ballyclough, the average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index in Ballyclough is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the temperature in September in Ballyclough?
What is the average humidity in September in Ballyclough?
How much does it rain in Ballyclough in September?
When it does not snow in Ballyclough?
Does it snow in Ballyclough in September?
What is the average length of the day in September in Ballyclough?
What time are sunrise and sunset in September in Ballyclough?
How long on average sun shines in September in Ballyclough?
What is the UV index reading in September in Ballyclough?
Average temperature in September
Ballyclough, IA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in September
Ballyclough, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Ballyclough, IA
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Ballyclough, IA
- Average humidity in September: 79%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Ballyclough, IA
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Ballyclough, IA
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (4.6 days).
Average snowfall in September
Ballyclough, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.08").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Ballyclough, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.3 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
Ballyclough, IA
- Average daylight in September: 12h and 3min
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 6min).
- Average sunshine in September: 9h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Ballyclough, IA
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is December (17.3 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Ballyclough, IA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Ballyclough, IA
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Ballyclough, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Ballyclough, Iowa, USA
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