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
In Yorktown, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's torrid 96.3°F (35.7°C) to a tropical 89.2°F (31.8°C). Yorktown in September experiences a low-temperature average of 72.5°F (22.5°C).Heat index
For most parts of September, the heat index is evaluated at a scorching 105.8°F (41°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Bear in mind that the heat index values are determined for shaded areas and light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In September, the average relative humidity is 73%.Rainfall
September is the month with the most rainfall. Rain falls for 16 days and accumulates 2.05" (52mm) of precipitation.Snowfall
January, March through December are months without snowfall in Yorktown, Texas.Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 7:08 am and sunset at 7:51 pm. On the last day of September, in Yorktown, sunrise is at 7:22 am and sunset at 7:16 pm CDT.
Sunshine
In September, the average sunshine in Yorktown, Texas, is 8.2h.UV index
In Yorktown, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 6 suggests these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
Is it hot in Yorktown during September?
What is the average humidity in September in Yorktown?
What is the rainiest month in Yorktown?
How many days does it rain in September in Yorktown?
When it does not snow in Yorktown?
What is the average length of the day in September in Yorktown?
What time are sunrise and sunset in September in Yorktown?
How long on average sun shines in September in Yorktown?
How high is the UV index in September in Yorktown?
Average temperature in September
Yorktown, TX
- Average high temperature in September: 89.2°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in September: 72.5°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (45.3°F).
Average pressure in September
Yorktown, TX
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Yorktown, TX
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is May (9.3mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in September
Yorktown, TX
- Average humidity in September: 73%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Yorktown, TX
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is September (2.05").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Yorktown, TX
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is September (16 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in September
Yorktown, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Yorktown, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Yorktown, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Yorktown, TX
- Average sunshine days in September: 13 days
The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is September (13 days).
Average UV index in September
Yorktown, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Yorktown, TX
- Average cloud cover in September: 36
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Yorktown, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, August, September, October, November and December (6mi).
The months with the lowest visibility are June and July (5mi).
Yorktown, Texas, USA
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