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
With the commencement of September, Grapeland records a moderate temperature decline, with the average high easing from August's very hot 95.5°F (35.3°C) to a tropical 89.6°F (32°C). September brings an average low-temperature of 68.7°F (20.4°C) to Grapeland.Heat index
In September, the heat index is calculated to be a scorching 105.8°F (41°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. 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 'felt air temperature' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
The average relative humidity in September in Grapeland, Texas, is 71%.Rainfall
In Grapeland, in September, it is raining for 14.6 days, with typically 2.64" (67mm) of accumulated precipitation. In Grapeland, during the entire year, the rain falls for 157.9 days and collects up to 36.06" (916mm) of precipitation.Snowfall
In Grapeland, snow does not fall in March through December.Daylight
The average length of the day in September in Grapeland is 12h and 21min.On the first day of September in Grapeland, sunrise is at 6:58 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:07 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Grapeland, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: In September, an average UV index of 6 transforms into the following instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
How hot is it in Grapeland in September?
What is the average humidity in September in Grapeland?
How much does it rain in Grapeland in September?
When it does not snow in Grapeland?
What is the average length of the day in September in Grapeland?
When are sunrise and sunset in September in Grapeland?
How many hours of sunshine does Grapeland have in September?
What is the UV index reading in September in Grapeland?
Average temperature in September
Grapeland, TX
- Average high temperature in September: 89.6°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (56.3°F).
- Average low temperature in September: 68.7°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in September
Grapeland, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Grapeland, TX
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).
Average humidity in September
Grapeland, TX
- Average humidity in September: 71%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Grapeland, TX
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is October (4.29").
The driest month (with the least rainfall) is November (2.05").
Average rainfall days in September
Grapeland, TX
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is January (11 days).
Average snowfall in September
Grapeland, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Grapeland, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.7 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
Grapeland, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
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: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Grapeland, TX
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is February (12.4 days).
Average UV index in September
Grapeland, TX
- Average UV index in September: 6
The months with the highest UV index are May, 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
Grapeland, TX
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Grapeland, TX
- Average visibility in September: 5mi
The months with the highest visibility are January, August, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May, June, July and September (5mi).
Grapeland, Texas, USA
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