September weather forecastArcola, IN
September
Weather in September
September, the first month of the autumn in Arcola, is still a warm month, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 55.8°F (13.2°C).Temperature
With the onset of September, Arcola's climate undergoes a slight change as the average high-temperature moves from a warm 79.3°F (26.3°C) in August to a still moderately hot 73.9°F (23.3°C). During the nights in September, an average low-temperature of 55.8°F (13.2°C) is observed.Humidity
The average relative humidity in September in Arcola is 79%.Rainfall
In Arcola, in September, it is raining for 11.2 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, there are 128.5 rainfall days, and 15" (381mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 7:08 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:24 pm EDT.
Sunshine
In September, the average sunshine is 7.9h.UV index
In Arcola, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 4 in September translates into these instructions:
Heed the precautions - It is counselled to guard against solar damage. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arcola, IN
- Average high temperature in September: 73.9°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 (30.9°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in September
Arcola, IN
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Arcola, IN
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Arcola, IN
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Arcola, IN
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days in September
Arcola, IN
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Arcola, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Arcola, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.5 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
Arcola, IN
- Average daylight in September: 12h and 30min
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 18min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Arcola, IN
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (12.5 days).
Average UV index in September
Arcola, IN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Arcola, IN
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Arcola, IN
- 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).
