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 arrival of September is marked by a minor reduction in average high-temperature, sliding from 85.6°F (29.8°C) in August to a still warm 79.3°F (26.3°C). Despite the high peak temperatures, Alvin witnesses an average nighttime cooling to a refreshing 56.8°F (13.8°C) in September.Humidity
In September, the average relative humidity 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.Daylight
In September, the average length of the day in Alvin, Kentucky, is 12h and 25min.On the first day of September, sunrise is at 7:01 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:14 pm EDT.
Sunshine
The average sunshine in September in Alvin is 8.3h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What are September temperatures in Alvin?
What is the average humidity in September in Alvin?
What is the driest month in Alvin?
How much does it rain in Alvin in September?
When it does not snow in Alvin?
Does it snow in Alvin in September?
What is the average length of the day in September in Alvin?
When are sunrise and sunset in September in Alvin?
How long on average sun shines in September in Alvin?
What is the UV index intensity in September in Alvin?
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"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
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%).
The 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").
The 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).
The 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: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
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
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 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
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
Alvin, Kentucky, USA
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