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
A moderate decline in average high-temperatures is noted in September, moving from a tropical 93.4°F (34.1°C) in August to a still hot 87.6°F (30.9°C). September in Crosby generally records an average low-temperature of 72.7°F (22.6°C).Heat index
In September, the average heat index is computed to be a very hot 102.2°F (39°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.Know that the heat index computations account for shaded terrains and slight winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Crosby, in September, it is raining for 20.9 days, with typically 4.88" (124mm) of accumulated precipitation. Throughout the year, there are 184.4 rainfall days, and 39.45" (1002mm) of precipitation is accumulated.Snowfall
In Crosby, Texas, snow does not fall in February through November.Daylight
The average length of the day in September is 12h and 20min.On the first day of September in Crosby, sunrise is at 6:57 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:06 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index in Crosby is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 6 in September leads to these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Crosby?
What is the average humidity in September in Crosby?
How much does it rain in Crosby in September?
When it does not snow in Crosby?
How many hours of daylight does Crosby have in September?
When are sunrise and sunset in September in Crosby?
How long on average sun shines in September in Crosby?
What is the UV index intensity in September in Crosby?
Average temperature in September
Crosby, TX
- Average high temperature in September: 87.6°F
The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in September: 72.7°F
The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).
Average pressure in September
Crosby, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Crosby, TX
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is September (6mph).
Average humidity in September
Crosby, TX
- Average humidity in September: 76%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and October (72%).
Average rainfall in September
Crosby, TX
- Average rainfall in September: 4.88"
The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in September
Crosby, TX
- Average rainfall days in September: 20.9 days
The month with the highest number of rainy days is September (20.9 days).
The month with the least rainy days is January (12.4 days).
Average snowfall in September
Crosby, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Crosby, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 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
Crosby, 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 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Crosby, TX
- Average sunshine days in September: 7.7 days
The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is September (7.7 days).
Average UV index in September
Crosby, 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 3).
Average cloud cover in September
Crosby, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Crosby, 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).
Crosby, Texas, USA
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