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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a warm 85.3°F (29.6°C) to a still moderately hot 79.7°F (26.5°C). Whittington, during the month of September, experiences an average low-temperature of 60.3°F (15.7°C).Humidity
In September, the average relative humidity in Whittington, Illinois, is 74%.Rainfall
The month with the least rainfall in Whittington is September, when the rain falls for 9 days and typically collects 0.98" (25mm) of precipitation.Snowfall
May through September are months without snowfall in Whittington.Daylight
In Whittington, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:26 am and sunset at 7:24 pm. On the last day of September, in Whittington, sunrise is at 6:51 am and sunset at 6:39 pm CDT.
Sunshine
In Whittington, Illinois, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the average September temperature in Whittington?
What is the average humidity in September in Whittington?
What is the driest month in Whittington?
How many days does it rain in September in Whittington?
When it does not snow in Whittington?
Does it snow in Whittington in September?
What is the average length of the day in September in Whittington?
When are sunrise and sunset in September in Whittington?
How long on average sun shines in September in Whittington?
How high is the UV index in September in Whittington?
Average temperature in September
Whittington, IL
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in September
Whittington, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Whittington, IL
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in September
Whittington, IL
- Average humidity in September: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Whittington, IL
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in September
Whittington, IL
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Whittington, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Whittington, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.5 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
Whittington, IL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Whittington, IL
- Average sunshine days in September: 18.7 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in September
Whittington, 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, November and December (UV index 2).
Average cloud cover in September
Whittington, IL
- Average cloud cover in September: 29
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in September
Whittington, 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).
Whittington, Illinois, USA
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