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
September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a sweltering 95°F (35°C) in August to a hot 88°F (31.1°C). An average temperature of 68.9°F (20.5°C) is recorded during the nights in September.Heat index
Throughout September, the heat index is evaluated at a fiery hot 98.6°F (37°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in September is 67%.Rainfall
In Grays Prairie, during September, the rain falls for 14.7 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, in Grays Prairie, there are 143.5 rainfall days, and 32.24" (819mm) of precipitation is accumulated.Snowfall
In Grays Prairie, snow does not fall in March through December.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:10 pm CDT.
Sunshine
In Grays Prairie, the average sunshine in September is 8.5h.UV index
In Grays Prairie, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Grays Prairie 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
Grays Prairie, TX
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in September: 68.9°F
The months with the highest average low temperature are July and August (74.7°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in September
Grays Prairie, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Grays Prairie, TX
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in September
Grays Prairie, TX
- Average humidity in September: 67%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Grays Prairie, TX
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is October (4.49").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in September
Grays Prairie, TX
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (8 days).
Average snowfall in September
Grays Prairie, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Grays Prairie, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Grays Prairie, TX
- 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 6min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Grays Prairie, TX
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is September (13.6 days).
Average UV index in September
Grays Prairie, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Grays Prairie, TX
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Grays Prairie, 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).
Grays Prairie, Texas, USA
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