Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
San Isidro in April denotes a subtle temperature transition, adjusting from an average high of a warm 83.3°F (28.5°C) in March to a tropical 90.1°F (32.3°C). April's nights in San Isidro exhibit a sharp contrast from day highs, with an average temperature of 68.4°F (20.2°C).Heat index
In April, the heat index is estimated at a torrid 98.6°F (37°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The average relative humidity in April is 59%.Rainfall
In San Isidro, in April, it is raining for 7.8 days, with typically 0.75" (19mm) of accumulated precipitation. In San Isidro, during the entire year, the rain falls for 98.5 days and collects up to 13.11" (333mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
In April, the average length of the day in San Isidro is 12h and 49min.On the first day of the month, sunrise is at 7:23 am and sunset at 7:51 pm. On the last day of April, sunrise is at 6:55 am and sunset at 8:06 pm CDT.
Sunshine
The average sunshine in April in San Isidro is 8.5h.UV index
In San Isidro, the average daily maximum UV index in April is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In April, the maximum UV index of 7 suggests these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
How hot does it get in San Isidro in April?
What is the average humidity in April in San Isidro?
How many days does it rain in April in San Isidro?
When it does not snow in San Isidro?
What is the average length of the day in April in San Isidro?
What time are sunrise and sunset in April in San Isidro?
How many hours of sunshine does San Isidro have in April?
What is the UV index reading in April in San Isidro?
Average temperature in April
San Isidro, TX
- Average high temperature in April: 90.1°F
The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (69.8°F).
- Average low temperature in April: 68.4°F
The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).
Average pressure in April
San Isidro, TX
- Average pressure in April: 29.88"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 April
San Isidro, TX
- Average wind speed in April: 12.6mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is December (9.2mph).
Average humidity in April
San Isidro, TX
- Average humidity in April: 59%
The month with the highest relative humidity is December (65%).
The month with the lowest relative humidity is August (53%).
Average rainfall in April
San Isidro, TX
- Average rainfall in April: 0.75"
The wettest month (with the highest rainfall) is September (2.56").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in April
San Isidro, TX
- Average rainfall days in April: 7.8 days
The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.8 days).
Average snowfall days in April
San Isidro, TX
- Average snowfall days in April: 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 April /
Average sunshine in April
San Isidro, TX
- Average daylight in April: 12h and 5min
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 April: 8h and 3min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in April
San Isidro, TX
- Average sunshine days in April: 20.3 days
The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is September (12.9 days).
Average UV index in April
San Isidro, TX
- Average UV index in April: 7
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 April
San Isidro, TX
- Average cloud cover in April: 30
The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in April
San Isidro, TX
- Average visibility in April: 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).
San Isidro, Texas, USA
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