September weather forecast and climate
Alvin, KY

The first month of the autumn, September, is also a moderately hot month in Alvin, Kentucky, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 79.3°F (26.3°C).

Temperature

In Alvin, the average high-temperature slightly decreases, from 85.6°F (29.8°C) in August, to a still warm 79.3°F (26.3°C). In September, in Alvin, Kentucky, the average low-temperature is 56.8°F (13.8°C).

Humidity

The average relative humidity in Alvin, Kentucky, is 76%.

Rainfall

September is the month with the least rainfall in Alvin. Rain falls for 13.5 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

May through September are months without snowfall in Alvin.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In Alvin, Kentucky, the average sunshine is 8.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Alvin?

In September, in Alvin, the average high-temperature is 79.3°F (26.3°C), and the average low-temperature is 56.8°F (13.8°C).

What is the average humidity in September in Alvin?

In September, the average relative humidity is 76%.

How much does it rain in Alvin in September?

In Alvin, in September, during 13.5 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

What is the driest month in Alvin?

September is the month with the least rainfall in Alvin. Rain falls for 13.5 days and accumulates 1.85" (47mm) of precipitation.

Does it snow in Alvin in September?

In Alvin, Kentucky, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Alvin?

In Alvin snow does not fall in May through September.

How many hours of daylight does Alvin have in September?

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

How many hours of sunshine does Alvin have in September?

The average sunshine in September in Alvin, Kentucky, is 8.3h.

What is the UV index intensity in September in Alvin?

The average daily maximum UV index in September in Alvin is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in September - Alvin, KY
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in September: 56.8°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in September - Alvin, KY
  • Average pressure in September: 30.05"

Months with the highest atmospheric pressure are January and November (30.16").
The month with the lowest atmospheric pressure is June (29.98").

Average wind speed in September - Alvin, KY
  • Average wind speed in September: 4.3mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in September - Alvin, KY
  • Average humidity in September: 76%

The month with the highest relative humidity is February (80%).
Months with the lowest relative humidity are August and November (74%).

Average rainfall in September - Alvin, KY
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in September - Alvin, KY
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (11.4 days).

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

The month with the highest snowfall is January (3.62").
Months with the least snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is January (11.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Alvin, 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: 8.3h

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.2h).

Average sunshine days in September - Alvin, KY
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is October (16.1 days).
The month with the least sunshine days is February (8.3 days).

Average UV index in September - Alvin, 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).

Average cloud cover in September - Alvin, KY
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September - Alvin, KY
  • Average visibility in September: 5mi

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