Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Alton marks the onset of July with an average high-temperature of a still sweltering 98.1°F (36.7°C), a subtle shift from June's 95.7°F (35.4°C). Alton's average low-temperature in July is measured at a warm 77.7°F (25.4°C).Heat index
During July, the heat index is calculated to be a blazing hot 123.8°F (51°C). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In Alton, the average relative humidity in July is 61%.Rainfall
July is the month with the most rainfall in Alton. Rain falls for 5.6 days and accumulates 0.71" (18mm) of precipitation.Snowfall
In Alton, snow does not fall in March through December.Daylight
In July, the average length of the day in Alton is 13h and 36min.On the first day of July, sunrise is at 6:44 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 8:20 pm CDT.
Sunshine
With an average of 11.4h of sunshine, July has the most sunshine of the year in Alton, Texas.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 8 during July, leads to the following recommendations:
Prioritize protection; rapid damage can occur to unprotected eyes and skin. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Alton in July?
What is the average humidity in July in Alton?
What is the wettest month in Alton?
How much does it rain in Alton in July?
When it does not snow in Alton?
What is the average length of the day in July in Alton?
What time are sunrise and sunset in July in Alton?
What month has the most sunshine in Alton?
How long on average sun shines in July in Alton?
What are the months with the highest UV index in Alton?
What is the UV index intensity in July in Alton?
Average temperature in July
Alton, TX
- Average high temperature in July: 98.1°F
The warmest month (with the highest average high temperature) is August (99°F).
The month with the lowest average high temperature is January (69.4°F).
- Average low temperature in July: 77.7°F
The month with the highest average low temperature is August (79.9°F).
The coldest month (with the lowest average low temperature) is January (53.2°F).
Average pressure in July
Alton, TX
- Average pressure in July: 29.92"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).
Average wind speed in July
Alton, TX
- Average wind speed in July: 12.9mph
The windiest months (with the highest average wind speed) are May and July (12.9mph).
The calmest month (with the lowest average wind speed) is September (9.3mph).
Average humidity in July
Alton, TX
- Average humidity in July: 61%
The months with the highest relative humidity are May and December (67%).
The month with the lowest relative humidity is August (58%).
Average rainfall in July
Alton, TX
- Average rainfall in July: 0.71"
The wettest month (with the highest rainfall) is July (0.71").
The driest months (with the least rainfall) are February and December (0.12").
Average rainfall days in July
Alton, TX
- Average rainfall days in July: 5.6 days
The month with the highest number of rainy days is September (11.3 days).
The month with the least rainy days is February (2.9 days).
Average snowfall days in July
Alton, TX
- Average snowfall days in July: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in July /
Average sunshine in July
Alton, TX
- Average daylight in July: 13h and 4min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in July: 11h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in July
Alton, TX
- Average sunshine days in July: 24.6 days
The month with the most sunshine days is March (24.9 days).
The month with the least sunshine days is September (15.6 days).
Average UV index in July
Alton, TX
- Average UV index in July: 8
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in July
Alton, TX
- Average cloud cover in July: 18
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in July
Alton, TX
- Average visibility in July: 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).
Alton, Texas, USA
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