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
Holt starts September with an average high-temperature of a still tropical 86.4°F (30.2°C), a minor shift from August's 91.4°F (33°C). Holt's average low-temperature for the month of September records at a refreshing 66.6°F (19.2°C).Heat index
The heat index for September is estimated at a torrid 96.8°F (36°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an estimation of the warmth sensation when considering humidity levels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In Holt, the average relative humidity in September is 71%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 2.44" (62mm) of precipitation is accumulated. In Holt, during the entire year, the rain falls for 169.8 days and collects up to 39.96" (1015mm) of precipitation.Snowfall
In Holt, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:14 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:35 pm CDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 6 in September translates into this advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September in Holt?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September in Holt?
When are sunrise and sunset in September in Holt?
How many hours of sunshine does Holt have in September?
What is the UV index reading in September?
Average temperature in September
Holt, AL
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in September: 66.6°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).
Average pressure in September
Holt, AL
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Holt, AL
- Average wind speed in September: 5.1mph
The windiest months (with the highest average wind speed) are March and April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).
Average humidity in September
Holt, AL
- Average humidity in September: 71%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Holt, AL
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is October (2.24").
Average rainfall days in September
Holt, AL
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Holt, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Holt, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Holt, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Holt, AL
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Holt, AL
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Holt, AL
- Average cloud cover in September: 28
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in September
Holt, AL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Holt, Alabama, USA
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