April weather forecast
McAllen, TX

As April takes over, McAllen, Texas continues with its gradual temperature rise, moving farther from the winter cold. This month proves to be warm yet comfortable, promoting outdoor adventures to enjoy the spring season. The rainfall in April is higher than in the previous month, measuring an average of 0.63" (16mm). With longer periods of sunlight, the city's landscapes sparkle in bright colors imbuing the town with a fresh and lively atmosphere. Tourists visiting McAllen, Texas in April get to witness this picturesque and vibrant setting while enjoying pleasant weather conditions.

Temperature

As March transitions into April, a subtle temperature shift is observed, with average highs adjusting from a warm 82°F (27.8°C) to a hot 88.5°F (31.4°C). During April, the nighttime temperature in McAllen averages of 68.4°F (20.2°C).

Heat index

The heat index in April is computed to be a fiery hot 98.6°F (37°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In April, the average relative humidity is 64%.

Rainfall

In McAllen, Texas, in April, it is raining for 7.9 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in McAllen, there are 103.3 rainfall days, and 12.72" (323mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

In April, the average length of the day in McAllen is 12h and 48min.
On the first day of the month, sunrise is at 7:22 am and sunset at 7:50 pm. On the last day of April, in McAllen, sunrise is at 6:55 am and sunset at 8:04 pm CDT.

Sunshine

The average sunshine in April is 8.3h.

UV index

The average daily maximum UV index in April is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 7 in April translates into this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.