September weather forecast
Brownsville, KY

Weather in September

The first month of the autumn, September, is also a moderately hot month in Brownsville, Kentucky, with average temperature fluctuating between 80.1°F (26.7°C) and 61°F (16.1°C).

Temperature

In September, the average high-temperature marginally drops, from 85.6°F (29.8°C) in August, to a still moderately hot 80.1°F (26.7°C). In Brownsville, the average low-temperature is 61°F (16.1°C).

Humidity

The average relative humidity in Brownsville is 75%.

Rainfall

The month with the least rainfall is September when the rain falls for 11.5 days and typically collects 1.18" (30mm) of precipitation.

Snowfall

In Brownsville snow does not fall in May through October.

Daylight

The average length of the day in Brownsville, Kentucky, is 12.4h.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for the average person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
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 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 Brownsville?

In September, the average relative humidity in Brownsville, Kentucky, is 75%.

What is the driest month in Brownsville?

The month with the least rainfall is September when the rain falls for 11.5 days and typically collects 1.18" (30mm) of precipitation.

How much does it rain in Brownsville in September?

In Brownsville, in September, during 11.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in Brownsville?

May through October are months without snowfall in Brownsville.

What is the average length of the day in September in Brownsville?

In September, the average length of the day in Brownsville, Kentucky, is 12.4h.

How many hours of sunshine does Brownsville have in September?

In Brownsville, the average sunshine in September is 8.6h.

What is the UV index reading in September in Brownsville?

The average daily maximum UV index in September in Brownsville, Kentucky, is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in September
Brownsville, KY

Average temperature in September - Brownsville, KY
  • Average high temperature in September: 80.1°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 (42.1°F).

  • Average low temperature in September: 61°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

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Average pressure in September
Brownsville, KY

Average pressure in September - Brownsville, KY
  • Average pressure in September: 30.03"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.96").

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Average wind speed in September
Brownsville, KY

Average wind speed in September - Brownsville, KY
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in September
Brownsville, KY

Average humidity in September - Brownsville, KY
  • Average humidity in September: 75%

Months with the highest relative humidity are February, March, May and December (79%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Brownsville, KY

Average rainfall in September - Brownsville, KY
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is September (1.18").

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Average rainfall days in September
Brownsville, KY

Average rainfall days in September - Brownsville, KY
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall in September
Brownsville, KY

Average snowfall in September - Brownsville, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.02").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Brownsville, KY

Average snowfall days in September - Brownsville, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.3 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Brownsville, KY

Average daylight in September / Average sunshine in September - Brownsville, KY
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 8.6h

Months with the most sunshine are June and August (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.3h).

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Average sunshine days in September
Brownsville, KY

Average sunshine days in September - Brownsville, KY
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in September
Brownsville, KY

Average UV index in September - Brownsville, KY
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Brownsville, KY

Average cloud cover in September - Brownsville, KY
  • Average cloud cover in September: 32

Months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in September
Brownsville, KY

Average visibility in September - Brownsville, KY
  • Average visibility in September: 6mi

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

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