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 transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a tropical 91.4°F (33°C) in August to a warm 82.8°F (28.2°C). In Earth, an average temperature of 61.9°F (16.6°C) is noted during September nights.Heat index
For September, the heat index is estimated at a tropical 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
September is the most humid month, with an average relative humidity of 58%.Rainfall
In Earth, in September, it is raining for 7.9 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 70.8 rainfall days, and 10.67" (271mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Earth, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:23 am and sunset at 8:15 pm. On the last day of September, sunrise is at 7:44 am and sunset at 7:34 pm CDT.
Sunshine
In September, the average sunshine is 9.1h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 6 suggests these recommendations:
Deflect overexposure. Sun protection is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the most humid month?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Earth have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Earth, TX
- Average high temperature in September: 82.8°F
The warmest months (with the highest average high temperature) are June, July and August (91.4°F).
The month with the lowest average high temperature is December (50.9°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in September
Earth, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Earth, TX
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (9.2mph).
Average humidity in September
Earth, TX
- Average humidity in September: 58%
The month with the highest relative humidity is September (58%).
The month with the lowest relative humidity is April (39%).
Average rainfall in September
Earth, TX
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is June (1.46").
The driest month (with the least rainfall) is November (0.31").
Average rainfall days in September
Earth, TX
- Average rainfall days in September: 7.9 days
The month with the highest number of rainy days is July (9.5 days).
The month with the least rainy days is November (2.3 days).
Average snowfall in September
Earth, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Earth, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (3.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Earth, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in September
Earth, TX
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is January (26.5 days).
The month with the least sunshine days is July (18.6 days).
Average UV index in September
Earth, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Earth, TX
- Average cloud cover in September: 22
The months with the most cloud cover are September and December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Earth, TX
- 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).
Earth, Texas, USA
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