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Average Weather in April in Corpus Christi Texas, United States

In Corpus Christi, the month of April is characterized by rising daily high temperatures, with daily highs increasing by 5°F, from 78°F to 83°F over the course of the month, and rarely exceeding 88°F or dropping below 71°F.

Daily low temperatures increase by 6°F, from 63°F to 69°F, rarely falling below 51°F or exceeding 76°F.

For reference, on August 12, the hottest day of the year, temperatures in Corpus Christi typically range from 78°F to 93°F, while on January 5, the coldest day of the year, they range from 50°F to 66°F.

Average High and Low Temperature in April

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in April

Average Hourly Temperature in April in Corpus Christi1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM4 AM8 AM12 PM4 PM8 PM12 AMMarMaycomfortablehotcoolwarm
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Clouds

The month of April in Corpus Christi experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 37% throughout the month.

The clearest day of the month is April 29, with clear, mostly clear, or partly cloudy conditions 65% of the time.

For reference, on July 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 55%, while on June 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 75%.

Cloud Cover Categories in April

Cloud Cover Categories in April in Corpus Christi181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 162%Apr 162%Apr 3064%Apr 3064%Apr 1161%Apr 1161%Apr 2164%Apr 2164%clearmostly clearpartly cloudymostly cloudyovercast
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Corpus Christi, the chance of a wet day over the course of April is rapidly increasing, starting the month at 13% and ending it at 19%.

For reference, the year's highest daily chance of a wet day is 33% on September 11, and its lowest chance is 11% on February 22.

Probability of Precipitation in April

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during April in Corpus Christi is increasing, starting the month at 1.5 inches, when it rarely exceeds 3.8 inches or falls below 0.1 inches, and ending the month at 2.1 inches, when it rarely exceeds 4.5 inches or falls below 0.3 inches.

The lowest average 31-day accumulation is 1.5 inches on April 11.

Average Monthly Rainfall in April

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

Over the course of April in Corpus Christi, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 45 minutes, implying an average daily increase of 1 minute, 33 seconds, and weekly increase of 10 minutes, 51 seconds.

The shortest day of the month is April 1, with 12 hours, 28 minutes of daylight and the longest day is April 30, with 13 hours, 13 minutes of daylight.

Hours of Daylight and Twilight in April

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The latest sunrise of the month in Corpus Christi is 7:19 AM on April 1 and the earliest sunrise is 29 minutes earlier at 6:50 AM on April 30.

The earliest sunset is 7:47 PM on April 1 and the latest sunset is 16 minutes later at 8:03 PM on April 30.

Daylight saving time is observed in Corpus Christi during 2017, but it neither starts nor ends during April, so the entire month is in daylight saving time.

For reference, on June 21, the longest day of the year, the Sun rises at 6:34 AM and sets 13 hours, 54 minutes later, at 8:28 PM, while on December 21, the shortest day of the year, it rises at 7:16 AM and sets 10 hours, 23 minutes later, at 5:39 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in April

The solar day over the course of April. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Humidity

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Corpus Christi is very rapidly increasing during April, rising from 43% to 69% over the course of the month.

For reference, on July 18, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 28, the least muggy day of the year, there are muggy conditions 9% of the time.

Humidity Comfort Levels in April

Humidity Comfort Levels in April in Corpus Christi181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%10%20%30%40%50%60%70%80%90%100%MarMayApr 143%Apr 143%Apr 3069%Apr 3069%Apr 1151%Apr 1151%Apr 2158%Apr 2158%drydryhumidhumidmuggymuggymiserablemiserableoppressiveoppressivecomfortablecomfortable
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Corpus Christi is essentially constant during April, remaining around 6.6 miles per hour throughout.

For reference, on April 26, the windiest day of the year, the daily average wind speed is 6.7 miles per hour, while on September 1, the calmest day of the year, the daily average wind speed is 5.0 miles per hour.

The highest daily average wind speed during April is 6.7 miles per hour on April 27.

Average Wind Speed in April

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
The hourly average wind direction in Corpus Christi throughout April is predominantly from the south, with a peak proportion of 50% on April 30.

Wind Direction in April

Wind Direction in April in Corpus Christi181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayeastnorthsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Corpus Christi is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Corpus Christi is increasing during April, rising by 6°F, from 68°F to 74°F, over the course of the month.

Average Water Temperature in April

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Corpus Christi is essentially constant during April, remaining within 0.2 kWh of 6.2 kWh throughout.

Average Daily Incident Shortwave Solar Energy in April

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Corpus Christi are 27.801 deg latitude, -97.396 deg longitude, and 0 ft elevation.

The topography within 2 miles of Corpus Christi is essentially flat, with a maximum elevation change of 49 feet and an average elevation above sea level of 10 feet. Within 10 miles is also essentially flat (72 feet). Within 50 miles is essentially flat (400 feet).

The area within 2 miles of Corpus Christi is covered by water (44%), artificial surfaces (43%), and bare soil (13%), within 10 miles by water (38%) and cropland (30%), and within 50 miles by cropland (38%) and water (35%).

Data Sources

This report illustrates the typical weather in Corpus Christi year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Corpus Christi.

For each station, the records are corrected for the elevation difference between that station and Corpus Christi according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Corpus Christi is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Corpus Christi and a given station.

The stations contributing to this reconstruction are: Corpus Christi International Airport (50%, 12 kilometers, west); Corpus Christi, Corpus Christi Naval Air Station/Truax Field (28%, 17 kilometers, southeast); T P Mc Campbell Airport (18%, 23 kilometers, northeast); and Chase Naval Air Station (3.6%, 68 kilometers, northwest).

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.