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
White Hall in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 83.5°F (28.6°C) in August to a still warm 78.1°F (25.6°C). White Hall, during the month of September, experiences an average low-temperature of 59.2°F (15.1°C).Humidity
The average relative humidity in September in White Hall is 74%.Rainfall
In White Hall, during September, the rain falls for 11 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, there are 127.3 rainfall days, and 17.24" (438mm) of precipitation is accumulated.Snowfall
In White Hall, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in White Hall, Illinois, sunrise is at 6:30 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm CDT.
Sunshine
The average sunshine in September in White Hall is 9.4h.UV index
The average daily maximum UV index in September in White Hall is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What is the usual temperature for White Hall in September?
What is the average humidity in September in White Hall?
How many days does it rain in September in White Hall?
When it does not snow in White Hall?
What is the average length of the day in September in White Hall?
When are sunrise and sunset in September in White Hall?
How long on average sun shines in September in White Hall?
How high is the UV index in September in White Hall?
Average temperature in September
White Hall, IL
- Average high temperature in September: 78.1°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in September
White Hall, IL
- 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 (29.91"Hg).
Average wind speed in September
White Hall, IL
- Average wind speed in September: 6.7mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in September
White Hall, IL
- Average humidity in September: 74%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
White Hall, IL
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is June (2.44").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days in September
White Hall, IL
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
White Hall, IL
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
White Hall, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
White Hall, IL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
White Hall, IL
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in September
White Hall, IL
- Average UV index in September: 5
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, November and December (UV index 2).
Average cloud cover in September
White Hall, IL
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
White Hall, IL
- 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).
White Hall, Illinois, USA
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