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
The start of September involves a subtle temperature drop, shifting from a moderately hot 78.4°F (25.8°C) in August to a pleasant 73°F (22.8°C). Clare registers a consistent average low-temperature of 54.5°F (12.5°C) during September.Humidity
The average relative humidity in September in Clare, Illinois, is 80%.Rainfall
In Clare, in September, it is raining for 12.2 days, with typically 2.24" (57mm) of accumulated precipitation. In Clare, during the entire year, the rain falls for 152.6 days and collects up to 32.09" (815mm) of precipitation.Snowfall
In Clare, snow does not fall in June through September.Daylight
In Clare, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:38 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Clare, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, an average UV index of 4 transforms into the following instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
What are September temperatures in Clare?
What is the average humidity in September in Clare?
How much does it rain in Clare in September?
When it does not snow in Clare?
Does it snow in Clare in September?
What is the average length of the day in September in Clare?
When is the sunrise / sunset in September in Clare?
How long on average sun shines in September in Clare?
How high is the UV index in September in Clare?
Average temperature in September
Clare, IL
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in September
Clare, 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
Clare, IL
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Clare, IL
- Average humidity in September: 80%
The months with the highest relative humidity are January and July (85%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in September
Clare, IL
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in September
Clare, IL
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in September
Clare, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Clare, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clare, IL
- Average daylight in September: 12h and 3min
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 3min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Clare, IL
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (17.2 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index in September
Clare, IL
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Clare, IL
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in September
Clare, IL
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Clare, Illinois, USA
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