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 observes an average high-temperature of a moderately hot 81.5°F (27.5°C), marking an insignificant difference from August's 86.7°F (30.4°C). During the month of September, Old Brownfield's nighttime temperature lowers to an average of 61.7°F (16.5°C).Heat index
In September, the heat index is estimated at a hot 86°F (30°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In Old Brownfield, the average relative humidity in September is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 11.1 days and accumulates 1.5" (38mm) of precipitation.Snowfall
In Old Brownfield, snow does not fall in May through October.Daylight
In Old Brownfield, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:22 pm. On the last day of September, in Old Brownfield, sunrise is at 6:49 am and sunset at 6:38 pm CDT.
Sunshine
The average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September in Old Brownfield, Illinois, is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Adopt protective measures - It is advised to guard against sun damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What is the average September temperature in Old Brownfield?
What is the average humidity in September in Old Brownfield?
What is the driest month in Old Brownfield?
How much does it rain in Old Brownfield in September?
When it does not snow in Old Brownfield?
What is the average length of the day in September in Old Brownfield?
What time are sunrise and sunset in September in Old Brownfield?
How many hours of sunshine does Old Brownfield have in September?
What is the UV index reading in September in Old Brownfield?
Average temperature in September
Old Brownfield, IL
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in September
Old Brownfield, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Old Brownfield, IL
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in September
Old Brownfield, IL
- Average humidity in September: 72%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Old Brownfield, IL
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Old Brownfield, IL
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).
Average snowfall in September
Old Brownfield, IL
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Old Brownfield, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Old Brownfield, IL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Old Brownfield, IL
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
Old Brownfield, IL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Old Brownfield, IL
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility in September
Old Brownfield, 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).
Old Brownfield, Illinois, USA
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