September weather forecast
Clear Lake, IN

Weather in September

September, the first month of the autumn in Clear Lake, is also an agreeable month, with an average temperature varying between 54.3°F (12.4°C) and 72.5°F (22.5°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a pleasant 72.5°F (22.5°C). In Clear Lake, in September, the average low-temperature is 54.3°F (12.4°C).

Humidity

In September, the average relative humidity in Clear Lake is 80%.

Rainfall

The months with the least rainfall are September, November and December Rain falls for 14.1 days and accumulates 1.85" (47mm) of rain.

Snowfall

In Clear Lake, snow does not fall in June through September.

Daylight

In Clear Lake, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 7:05 am and sunset at 8:13 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:23 pm EDT.

Sunshine

The average sunshine in September is 8h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in September in Clear Lake?

In Clear Lake, Indiana, the average relative humidity in September is 80%.

What is the driest month in Clear Lake?

The months with the least rainfall in Clear Lake, Indiana, are September, November and December Rain falls for 14.1 days and accumulates 1.85" (47mm) of rain.

How many days does it rain in September in Clear Lake?

In Clear Lake, in September, during 14.1 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

When it does not snow in Clear Lake?

In Clear Lake, Indiana, snow does not fall in June through September.

Does it snow in Clear Lake in September?

In Clear Lake, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Clear Lake have in September?

The average day length in September in Clear Lake, Indiana, is 12h and 28min.

When is the sunrise / sunset in September in Clear Lake?

In September, on the first day of the month, sunrise is at 7:05 am and sunset at 8:13 pm. On the last day of the month, in Clear Lake, Indiana, sunrise is at 7:35 am and sunset at 7:23 pm EDT.

How many hours of sunshine does Clear Lake have in September?

In Clear Lake, the average sunshine duration in September is 8h.

What is the UV index intensity in September in Clear Lake?

The average daily maximum UV index in September in Clear Lake, Indiana, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.

Average temperature in September
Clear Lake, IN

Average temperature in September - Clear Lake, IN
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in September: 54.3°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in September
Clear Lake, IN

Average pressure in September - Clear Lake, IN
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Clear Lake, IN

Average wind speed in September - Clear Lake, IN
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in September
Clear Lake, IN

Average humidity in September - Clear Lake, IN
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are March, April and October (77%).

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Average rainfall in September
Clear Lake, IN

Average rainfall in September - Clear Lake, IN
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is April (3.98").
The driest months (with the least rainfall) are September, November and December (1.85").

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Average rainfall days in September
Clear Lake, IN

Average rainfall days in September - Clear Lake, IN
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is February (7.7 days).

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Average snowfall in September
Clear Lake, IN

Average snowfall in September - Clear Lake, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Clear Lake, IN

Average snowfall days in September - Clear Lake, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Clear Lake, IN

Average daylight in September / Average sunshine in September - Clear Lake, IN
  • Average daylight in September: 12h and 28min

The month with the longest days is June (Average daylight: 15h and 10min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • Average sunshine in September: 8h

The month with the most sunshine is July (Average sunshine: 10.1h).
The month with the least sunshine is January (Average sunshine: 3h).

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Average sunshine days in September
Clear Lake, IN

Average sunshine days in September - Clear Lake, IN
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is November (13.8 days).
The month with the least sunshine days is February (8.3 days).

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Average UV index in September
Clear Lake, IN

Average UV index in September - Clear Lake, IN
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Clear Lake, IN

Average cloud cover in September - Clear Lake, IN
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in September
Clear Lake, IN

Average visibility in September - Clear Lake, IN
  • Average visibility in September: 5mi

The months with the highest visibility are March, April, May, June, July, October and November (6mi).
The months with the lowest visibility are January, February, August, September and December (5mi).

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