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 implies a soft temperature shift, with average high-temperatures reducing from August's warm 80.2°F (26.8°C) to a still moderately hot 74.7°F (23.7°C). Adair reports an average low-temperature of 55.9°F (13.3°C) during the nights of September.Humidity
In Adair, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 12.1 days. Throughout September, 2.87" (73mm) of precipitation is accumulated. In Adair, Iowa, during the entire year, the rain falls for 137.1 days and collects up to 28.62" (727mm) of precipitation.Snowfall
In Adair, Iowa, snow does not fall in June through September.Daylight
In September, the average length of the day in Adair is 12h and 28min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:01 pm CDT.
Sunshine
In Adair, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Adair is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the temperature in September in Adair?
What is the average humidity in September in Adair?
How many days does it rain in September in Adair?
When it does not snow in Adair?
Does it snow in Adair in September?
How many hours of daylight does Adair have in September?
When are sunrise and sunset in September in Adair?
How many hours of sunshine does Adair have in September?
How high is the UV index in September in Adair?
Average temperature in September
Adair, 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
Adair, 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
Adair, 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
Adair, 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
Adair, 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
Adair, 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
Adair, 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
Adair, 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
Adair, 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 12min).
- Average sunshine in September: 9h and 2min
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
Adair, 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
Adair, 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
Adair, 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
Adair, 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).
Adair, Iowa, USA
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