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's average high-temperature stands at a still moderately hot 74.1°F (23.4°C), showing little deviation from August's 79.2°F (26.2°C). In September, the recorded average low-temperature is a fresh 55.2°F (12.9°C).Humidity
In September, the average relative humidity is 74%.Rainfall
In Yetter, Iowa, during September, the rain falls for 11.5 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Yetter, during the entire year, the rain falls for 107.9 days and collects up to 15.04" (382mm) of precipitation.Snowfall
June through September are months without snowfall in Yetter, Iowa.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September in Yetter, sunrise is at 6:45 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:02 pm CDT.
Sunshine
The average sunshine in September in Yetter is 9.1h.UV index
The average daily maximum UV index in September in Yetter, Iowa, is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What are September temperatures in Yetter?
What is the average humidity in September in Yetter?
How much does it rain in Yetter in September?
When it does not snow in Yetter?
Does it snow in Yetter in September?
What is the average length of the day in September in Yetter?
When is the sunrise / sunset in September in Yetter?
How long on average sun shines in September in Yetter?
How high is the UV index in September in Yetter?
Average temperature in September
Yetter, IA
- Average high temperature in September: 74.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in September
Yetter, IA
- Average pressure in September: 30"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
Yetter, IA
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in September
Yetter, IA
- Average humidity in September: 74%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is April (67%).
Average rainfall in September
Yetter, IA
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Yetter, IA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Yetter, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Yetter, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Yetter, 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 month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Yetter, IA
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Yetter, 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 February (UV index 1).
Average cloud cover in September
Yetter, IA
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Yetter, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Yetter, Iowa, USA
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