September weather forecast and climate
Boylston, AL

September, the first month of the autumn, in Boylston, is still a hot month, with average temperature varying between 87.1°F (30.6°C) and 67.3°F (19.6°C).

Temperature

In Boylston, the average high-temperature in September is almost the same as in August - a still hot 87.1°F (30.6°C). In Boylston, in September, the average low-temperature is 67.3°F (19.6°C).

Heat index

The average heat index is calculated to a torrid 98.8°F (37.1°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, wind, pregnancy, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

In September, the average relative humidity in Boylston is 72%.

Rainfall

September is the month with the least rainfall in Boylston, Alabama. Rain falls for 12.8 days and accumulates 1.22" (31mm) of precipitation.

Snowfall

In Boylston snow does not fall in April through November.

Daylight

In September, the average length of the day in Boylston, Alabama, is 12.4h.

Sunshine

The average sunshine in Boylston, Alabama, is 8.8h.

UV index

The average daily maximum UV index in Boylston is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.

What is the temperature in September in Boylston?

In Boylston, Alabama, in September, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that calculates temperature value influenced by the moisture in the air, in September is appraised at 98.8°F (37.1°C).

What is the average humidity in September in Boylston?

In September, the average relative humidity is 72%.

How much does it rain in Boylston in September?

In Boylston, Alabama, in September, during 12.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

What is the driest month in Boylston?

September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 1.22" (31mm) of precipitation.

When it does not snow in Boylston?

April through November are months without snowfall in Boylston.

How many hours of daylight does Boylston have in September?

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

How many hours of sunshine does Boylston have in September?

In Boylston, Alabama, the average sunshine in September is 8.8h.

How high is the UV index in September in Boylston?

In Boylston, Alabama, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.
Average temperature in September - Boylston, AL
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in September: 67.3°F

Months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in September - Boylston, AL
  • Average pressure in September: 30"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.97").

Average wind speed in September - Boylston, AL
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are January, February and December (7.6mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in September - Boylston, AL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September - Boylston, AL
  • Average rainfall in September: 1.22"

The wettest months (with the highest rainfall) are August and December (2.36").
The driest month (with the least rainfall) is September (1.22").

Average rainfall days in September - Boylston, AL
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is August (19.4 days).
The month with the least rainy days is November (6.7 days).

Average snowfall in September - Boylston, AL
  • Average snowfall in September: 0"

Months with the highest snowfall are January and March (0.2").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September - Boylston, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.6 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September / Average sunshine in September - Boylston, AL
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is June (Average sunshine: 10.8h).
Months with the least sunshine are February and December (Average sunshine: 5.1).

Average sunshine days in September - Boylston, AL
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (9 days).

Average UV index in September - Boylston, AL
  • Average UV index in September: 6

Months with the highest UV index are May, June and July (UV index 7).
Months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September - Boylston, AL
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September - Boylston, AL
  • 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).