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
September marks a gentle change in average high-temperature, declining from August's 82°F (27.8°C) to a still warm 76.6°F (24.8°C). The temperature in McClelland lowers to an average of 56.8°F (13.8°C) during September nights.Humidity
In September, the average relative humidity in McClelland, Iowa, is 73%.Rainfall
In McClelland, Iowa, during September, the rain falls for 12 days and regularly aggregates up to 2.17" (55mm) of precipitation. In McClelland, during the entire year, the rain falls for 125.8 days and collects up to 25.35" (644mm) of precipitation.Snowfall
June through September are months without snowfall in McClelland.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September in McClelland, sunrise is at 6:49 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:05 pm CDT.
Sunshine
In McClelland, the average sunshine in September is 9.1h.UV index
In McClelland, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Take precautions - Protection against sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are the temperatures in McClelland in September?
What is the average humidity in September in McClelland?
How much does it rain in McClelland in September?
When it does not snow in McClelland?
Does it snow in McClelland in September?
How many hours of daylight does McClelland have in September?
When are sunrise and sunset in September in McClelland?
How long on average sun shines in September in McClelland?
What is the UV index intensity in September in McClelland?
Average temperature in September
McClelland, IA
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in September
McClelland, IA
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
McClelland, IA
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in September
McClelland, IA
- Average humidity in September: 73%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
McClelland, IA
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
McClelland, IA
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in September
McClelland, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
McClelland, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
McClelland, IA
- Average daylight in September: 12h and 3min
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 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
McClelland, IA
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
McClelland, IA
- 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, October, November and December (UV index 2).
Average cloud cover in September
McClelland, IA
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
McClelland, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
McClelland, Iowa, USA
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