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 arrival signals a moderate reduction in the average high-temperature, easing from a warm 80.8°F (27.1°C) in August to a still moderately hot 74.8°F (23.8°C). Prairie City, during the nights of September, experiences an average temperature drop to a mild 55.9°F (13.3°C).Humidity
In Prairie City, the average relative humidity in September is 77%.Rainfall
In Prairie City, Iowa, in September, it is raining for 10.1 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 104.4 rainfall days, and 10.71" (272mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Prairie City.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:55 pm CDT.
Sunshine
In Prairie City, the average sunshine in September is 9.5h.UV index
In Prairie City, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Prairie City in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Prairie City have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Prairie City have in September?
How high is the UV index in September?
Average temperature in September
Prairie City, IA
- Average high temperature in September: 74.8°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 (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Prairie City, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Prairie City, IA
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in September
Prairie City, IA
- Average humidity in September: 77%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Prairie City, IA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Prairie City, IA
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Prairie City, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Prairie City, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Prairie City, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Prairie City, IA
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Prairie City, 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
Prairie City, 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 July and September (Cloud cover 29).
Average visibility in September
Prairie City, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Prairie City, Iowa, USA
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