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
Harrisburg transitions into September recording an average high-temperature of a warm 84.6°F (29.2°C), closely aligning with the preceding month's temperature. An average low-temperature of 64°F (17.8°C) is noted during the nights in September.Heat index
For most parts of September, the heat index is appraised at a tropical 93.2°F (34°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Heat index determinations are made taking into account the shade and light air movements. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In Harrisburg, the average relative humidity in September is 74%.Rainfall
In Harrisburg, in September, during 14.5 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Harrisburg, during the entire year, the rain falls for 184.1 days and collects up to 41.97" (1066mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 6:19 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:30 pm CDT.
Sunshine
In Harrisburg, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's radiation is especially intense around midday; try to stay in shade during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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 in Harrisburg?
How much does it rain in September?
When it does not snow in Harrisburg?
How many hours of daylight does Harrisburg have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Harrisburg have in September?
What is the UV index reading in September?
Average temperature in September
Harrisburg, AL
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).
Average pressure in September
Harrisburg, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Harrisburg, AL
- Average wind speed in September: 4.6mph
The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Harrisburg, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Harrisburg, AL
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (2.32").
Average rainfall days in September
Harrisburg, AL
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (22.4 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Harrisburg, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.91").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Harrisburg, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Harrisburg, 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: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Harrisburg, AL
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (6.2 days).
Average UV index in September
Harrisburg, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Harrisburg, AL
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Harrisburg, 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).
Harrisburg, Alabama, USA
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