September weather forecastLincolnshire, IL
September
Weather in September
In September, the weather in Lincolnshire begins to morph, paving the way for autumn. Although summer's grip lessens, the charm of warm sunny days persists. The slightly cool breeze, alongside dwindling temperatures, results in a soothing climate, perfect for enjoying Lincolnshire's abundant natural beauty. It serves as a month of transition, anticipating the brisk beauty of the approaching fall.Temperature
Lincolnshire's September weather shows a modest shift in high-temperatures, falling from August's warm 79.7°F (26.5°C) to an agreeable 73°F (22.8°C). An average minimum temperature of 58.1°F (14.5°C) is recorded during the month of September.Humidity
In September, the average relative humidity in Lincolnshire is 75%.Rainfall
In Lincolnshire, in September, during 13.5 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 154.2 rainfall days, and 28.94" (735mm) of precipitation is accumulated.Snowfall
In Lincolnshire, snow does not fall in June through September.Daylight
In Lincolnshire, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:34 pm CDT.
Sunshine
In September, the average sunshine in Lincolnshire is 8.9h.UV index
In Lincolnshire, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the UV index of 4 transforms into the following advice:
Take necessary precautions - Defending against sun damage is advocated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lincolnshire, IL
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in September
Lincolnshire, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Lincolnshire, IL
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
Lincolnshire, IL
- Average humidity in September: 75%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Lincolnshire, IL
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days in September
Lincolnshire, IL
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in September
Lincolnshire, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lincolnshire, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lincolnshire, IL
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Lincolnshire, IL
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in September
Lincolnshire, IL
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Lincolnshire, IL
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Lincolnshire, 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).





