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 signifies a gentle decline in Shamrock's average high-temperature, easing from a tropical 93.6°F (34.2°C) in August to a warm 84.7°F (29.3°C). Shamrock's nighttime temperature during September is consistently averaged at a refreshing 65.1°F (18.4°C).Heat index
The average heat index in September is appraised at a tropical 87.8°F (31°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
September is the most humid month in Shamrock, with an average relative humidity of 57%.Rainfall
In Shamrock, Texas, during September, the rain falls for 10.6 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 93.9 rainfall days, and 17.17" (436mm) of precipitation is accumulated.Snowfall
In Shamrock, Texas, snow does not fall in May through October.Daylight
In Shamrock, the average length of the day in September is 12h and 23min.On the first day of September in Shamrock, sunrise is at 7:14 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm CDT.
Sunshine
The average sunshine in September in Shamrock is 9.1h.UV index
In September, the average daily maximum UV index in Shamrock 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 average person.Note: The UV index of 5 during September leads to these advisories:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Shamrock in September?
What is the most humid month in Shamrock?
What is the average humidity in September in Shamrock?
How much does it rain in Shamrock in September?
When it does not snow in Shamrock?
How many hours of daylight does Shamrock have in September?
What time are sunrise and sunset in September in Shamrock?
How long on average sun shines in September in Shamrock?
What is the UV index reading in September in Shamrock?
Average temperature in September
Shamrock, TX
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (50°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in September
Shamrock, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Shamrock, TX
- Average wind speed in September: 10.8mph
The windiest month (with the highest average wind speed) is April (13.9mph).
The calmest month (with the lowest average wind speed) is August (10.1mph).
Average humidity in September
Shamrock, TX
- Average humidity in September: 57%
The month with the highest relative humidity is September (57%).
The month with the lowest relative humidity is August (49%).
Average rainfall in September
Shamrock, TX
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (2.56").
The driest months (with the least rainfall) are February and November (0.59").
Average rainfall days in September
Shamrock, TX
- Average rainfall days in September: 10.6 days
The months with the highest number of rainy days are July and August (11.3 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Shamrock, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Shamrock, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Shamrock, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
Shamrock, TX
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is September (16.4 days).
Average UV index in September
Shamrock, TX
- Average UV index in September: 5
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 2).
Average cloud cover in September
Shamrock, TX
- Average cloud cover in September: 22
The month with the most cloud cover is April (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Shamrock, 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).
Shamrock, Texas, USA
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