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
The commencement of September introduces an average high-temperature of a still moderately hot 73.4°F (23°C), closely mirroring the preceding month. Algona records an average temperature drop to a cool 54.5°F (12.5°C) in September.Humidity
In September, the average relative humidity in Algona is 75%.Rainfall
In Algona, during September, the rain falls for 9.5 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, in Algona, Iowa, there are 100.5 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Algona, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:51 pm. On the last day of September, in Algona, sunrise is at 7:14 am and sunset at 6:59 pm CDT.
Sunshine
In September, the average sunshine in Algona is 9.1h.UV index
In Algona, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What is the usual temperature for Algona in September?
What is the average humidity in September in Algona?
How many days does it rain in September in Algona?
When it does not snow in Algona?
Does it snow in Algona in September?
What is the average length of the day in September in Algona?
When is the sunrise / sunset in September in Algona?
How many hours of sunshine does Algona have in September?
What is the UV index intensity in September in Algona?
Average temperature in September
Algona, IA
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in September: 54.5°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 (10.8°F).
Average pressure in September
Algona, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Algona, IA
- Average wind speed in September: 8.7mph
The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
Algona, IA
- Average humidity in September: 75%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Algona, IA
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Algona, IA
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is June (14.5 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in September
Algona, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Algona, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 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
Algona, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Algona, IA
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in September
Algona, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Algona, IA
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Algona, 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).
Algona, Iowa, USA
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