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
Heyworth notes an average high-temperature of a still moderately hot 75.9°F (24.4°C) in September, displaying minor variation from August. In September, Heyworth's temperature tends to fall to an average low of 57.7°F (14.3°C) during the night.Humidity
In September, the average relative humidity in Heyworth is 76%.Rainfall
In Heyworth, in September, during 10.3 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, there are 124.4 rainfall days, and 13.23" (336mm) of precipitation is accumulated.Snowfall
In Heyworth, snow does not fall in May through October.Daylight
In September, the average length of the day in Heyworth is 12h and 27min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm CDT.
Sunshine
In Heyworth, the average sunshine in September is 9h.UV index
In Heyworth, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 5 during September translates into the following guidance:
Undertake precautions - Guarding against sun damage is counselled. To guard against the harmful effects of the Sun, minimize exposure during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What is the average September temperature in Heyworth?
What is the average humidity in September in Heyworth?
How many days does it rain in September in Heyworth?
When it does not snow in Heyworth?
How many hours of daylight does Heyworth have in September?
When is the sunrise / sunset in September in Heyworth?
How many hours of sunshine does Heyworth have in September?
How high is the UV index in September in Heyworth?
Average temperature in September
Heyworth, IL
- Average high temperature in September: 75.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in September: 57.7°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 (19.8°F).
Average pressure in September
Heyworth, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Heyworth, IL
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Heyworth, IL
- Average humidity in September: 76%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Heyworth, IL
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days in September
Heyworth, IL
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Heyworth, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Heyworth, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.5 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
Heyworth, IL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Heyworth, IL
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in September
Heyworth, IL
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Heyworth, IL
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in September
Heyworth, IL
- 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).
Heyworth, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
