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
As August turns into September, the average high-temperatures rest at a warm 85.1°F (29.5°C), showing a minor variation from the prior month. Pelham experiences an average low-temperature reading of 66°F (18.9°C) throughout September.Heat index
In September, the average heat index is computed to be a hot 93.2°F (34°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In Pelham, the average relative humidity in September is 72%.Rainfall
September and October are months with the least rain when the rain falls for 14.3 days and typically aggregates up to 2.36" (60mm) of rain.Snowfall
In Pelham, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:12 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:32 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 5 during September leads to these instructions:
Heed the precautions - Suggestions to avoid sunburn are made. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Pelham have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Pelham, AL
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (51.1°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is August (71.4°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in September
Pelham, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in September
Pelham, AL
- Average wind speed in September: 4.9mph
The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in September
Pelham, AL
- Average humidity in September: 72%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Pelham, AL
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is April (4.09").
The driest months (with the least rainfall) are September and October (2.36").
Average rainfall days in September
Pelham, AL
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Pelham, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Pelham, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Pelham, 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 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Pelham, AL
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Pelham, AL
- Average UV index in September: 5
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Pelham, AL
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Pelham, 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).
Pelham, Alabama, USA
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