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
As August transitions into September, University Park records an average high-temperature of a still moderately hot 75.9°F (24.4°C), showing a gentle shift from the preceding month. University Park experiences a mean low-temperature of 56.1°F (13.4°C) during September.Humidity
The average relative humidity in September is 76%.Rainfall
In University Park, in September, during 12.2 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. In University Park, during the entire year, the rain falls for 141.1 days and collects up to 28.5" (724mm) of precipitation.Snowfall
In University Park, snow does not fall in June through September.Daylight
In September, the average length of the day in University Park, Iowa, is 12h and 28min.On the first day of September in University Park, sunrise is at 6:37 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index in University Park is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are September temperatures in University Park?
What is the average humidity in September in University Park?
How much does it rain in University Park in September?
When it does not snow in University Park?
Does it snow in University Park in September?
How many hours of daylight does University Park have in September?
When are sunrise and sunset in September in University Park?
How long on average sun shines in September in University Park?
What is the UV index reading in September in University Park?
Average temperature in September
University Park, IA
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
University Park, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
University Park, IA
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in September
University Park, IA
- Average humidity in September: 76%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
University Park, IA
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in September
University Park, IA
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
University Park, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
University Park, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
University Park, 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 2min
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 12min).
Average sunshine days in September
University Park, IA
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (9 days).
Average UV index in September
University Park, 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 January (UV index 1).
Average cloud cover in September
University Park, IA
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in September
University Park, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
University Park, Iowa, USA
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