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 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
A subtle rise in the average high-temperature is observed during April, adjusting from a moderately hot 77.5°F (25.3°C) in March to a still warm 84.9°F (29.4°C). Against the backdrop of high daytime temperatures, an average low-temperature of 63.3°F (17.4°C) is noted during April nights.Heat index
April's mean heat index is estimated at a hot 87.8°F (31°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In April, the average relative humidity in Crystal City is 58%.Rainfall
In Crystal City, in April, during 9.3 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 101.5 rainfall days, and 12.48" (317mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall in Crystal City, Texas.Daylight
In Crystal City, the average length of the day in April is 12h and 53min.On the first day of the month, sunrise is at 7:28 am and sunset at 7:57 pm. On the last day of April, sunrise is at 6:58 am and sunset at 8:14 pm CDT.
Sunshine
In April, the average sunshine is 8h.UV index
In April, the average daily maximum UV index 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 ordinary person.Note: In April, an average UV index of 6 transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is April in Crystal City?
What is the average humidity in April in Crystal City?
How much does it rain in Crystal City in April?
When it does not snow in Crystal City?
What is the average length of the day in April in Crystal City?
What time are sunrise and sunset in April in Crystal City?
How many hours of sunshine does Crystal City have in April?
How high is the UV index in April in Crystal City?
Average temperature in April
Crystal City, TX
- Average high temperature in April: 84.9°F
The warmest month (with the highest average high temperature) is August (99.1°F).
The month with the lowest average high temperature is January (64.8°F).
- Average low temperature in April: 63.3°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in April
Crystal City, TX
- Average pressure in April: 29.9"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed in April
Crystal City, TX
- Average wind speed in April: 10.3mph
The windiest month (with the highest average wind speed) is May (10.9mph).
The calmest month (with the lowest average wind speed) is December (7mph).
Average humidity in April
Crystal City, TX
- Average humidity in April: 58%
The month with the highest relative humidity is November (64%).
The month with the lowest relative humidity is August (49%).
Average rainfall in April
Crystal City, TX
- Average rainfall in April: 0.91"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in April
Crystal City, TX
- Average rainfall days in April: 9.3 days
The month with the highest number of rainy days is September (14.5 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in April
Crystal City, TX
- Average snowfall in April: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in April
Crystal City, TX
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and December (0 days).
Average daylight in April /
Average sunshine in April
Crystal City, TX
- Average daylight in April: 12h and 5min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in April: 8h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
Crystal City, TX
- Average sunshine days in April: 18.4 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is September (13.9 days).
Average UV index in April
Crystal City, TX
- Average UV index in April: 6
The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in April
Crystal City, TX
- Average cloud cover in April: 32
The months with the most cloud cover are March and May (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in April
Crystal City, 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).
Crystal City, Texas, USA
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