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 brings an average high-temperature of a pleasant 72.5°F (22.5°C), marking an inconsequential divergence from August. During September, Hayfield Junction's temperature falls to a steady low-temperature average of 54°F (12.2°C).Humidity
In September, the average relative humidity in Hayfield Junction is 77%.Rainfall
In Hayfield Junction, in September, during 6.6 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, in Hayfield Junction, there are 80.2 rainfall days, and 6.14" (156mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Hayfield Junction, Iowa, is 12h and 29min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:56 pm CDT.
Sunshine
In Hayfield Junction, Iowa, the average sunshine in September is 8.9h.UV index
In Hayfield Junction, Iowa, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What are the temperatures in Hayfield Junction in September?
What is the average humidity in September in Hayfield Junction?
How many days does it rain in September in Hayfield Junction?
When it does not snow in Hayfield Junction?
Does it snow in Hayfield Junction in September?
What is the average length of the day in September in Hayfield Junction?
When is the sunrise / sunset in September in Hayfield Junction?
How long on average sun shines in September in Hayfield Junction?
How high is the UV index in September in Hayfield Junction?
Average temperature in September
Hayfield Junction, IA
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure in September
Hayfield Junction, 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
Hayfield Junction, IA
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in September
Hayfield Junction, IA
- Average humidity in September: 77%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Hayfield Junction, IA
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is June (0.87").
The driest month (with the least rainfall) is January (0.2").
Average rainfall days in September
Hayfield Junction, IA
- Average rainfall days in September: 6.6 days
The month with the highest number of rainy days is June (12 days).
The months with the least rainy days are January and February (1.7 days).
Average snowfall in September
Hayfield Junction, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hayfield Junction, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hayfield Junction, 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Hayfield Junction, IA
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in September
Hayfield Junction, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Hayfield Junction, IA
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Hayfield Junction, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Hayfield Junction, Iowa, USA
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