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 onset of September entails a subtle temperature shift, as the average high-temperature eases from a tropical 91.4°F (33°C) in August to a warm 82.9°F (28.3°C). Silverton's nighttime temperature in September falls to an average of 61.9°F (16.6°C).Heat index
For most parts of September, the heat index is evaluated at a hot 86°F (30°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
With an average relative humidity of 57%, September is the most humid month.Rainfall
In Silverton, during September, the rain falls for 11.9 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 82.2 rainfall days, and 13.35" (339mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 7:18 am and sunset at 8:10 pm. On the last day of September, sunrise is at 7:39 am and sunset at 7:30 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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 most humid month?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Silverton, TX
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (91.6°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 (70.5°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Silverton, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Silverton, TX
- Average wind speed in September: 10.3mph
The windiest month (with the highest average wind speed) is April (13.4mph).
The calmest month (with the lowest average wind speed) is August (9.8mph).
Average humidity in September
Silverton, TX
- Average humidity in September: 57%
The month with the highest relative humidity is September (57%).
The month with the lowest relative humidity is April (41%).
Average rainfall in September
Silverton, TX
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is December (0.2").
Average rainfall days in September
Silverton, TX
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is January (1.3 days).
Average snowfall in September
Silverton, TX
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Silverton, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Silverton, 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 36min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Silverton, TX
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (28.3 days).
The month with the least sunshine days is August (14.5 days).
Average UV index in September
Silverton, TX
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Silverton, TX
- Average cloud cover in September: 23
The months with the most cloud cover are February and September (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Silverton, 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).
Silverton, Texas, USA
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