Daily high temperatures increase by 3°F, from 71°F to 74°F, rarely falling below 63°F or exceeding 85°F. The average accumulated growing degree days in Los Angeles are increasing during April, increasing by 359Â°F, from 771Â°F to 1,130Â°F, over the course of the month. The average hourly temperature, color coded into bands. April sees a shift in weather at Los Angeles, California from winter's rainy season to summer's dry season. Los Angeles has an April thunderstorm every few years. The solar day over the course of April. 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. 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. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. You will avoid the high season crowds though as you explore the city and relax on the beaches in pleasant and mild temperatures. This section reports on the wide-area average surface temperature of that water. Shortwave radiation includes visible light and ultraviolet radiation. The rainiest Aprils get at least 1 inch (28 mm). The relative humidity in Los Angeles during April usually peaks at 80 percent in the morning then drops to 60 percent by early afternoon. The humidity and thunderstorm measurements are averages at the Los Angeles International Airport, located southwest of the city center. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. There are normally 10 hours of bright sunshine each day in Los Angeles in April - that's 77% of daylight hours. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year. Time zones for airports and weather stations are provided by AskGeo.com . Temperatures in Los Angeles are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. For the purposes of this report, the geographical coordinates of Los Angeles are 34.052 deg latitude, -118.244 deg longitude, and 289 ft elevation.
Temperatures into the 100s °F (over 38 °C) occur about once a decade here during April. The average hourly wind speed in Los Angeles is essentially constant during April, remaining within 0.2 miles per hour of 7.1 miles per hour throughout. The temperature, rainfall, sunshine and wind speed numbers here are historical averages based on climate data gathered in downtown Los Angeles near Union Station. The black line is the percentage chance that a given day is within the growing season. Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32Â°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). 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. Daylight saving time is observed in Los Angeles during 2020, but it neither starts nor ends during April, so the entire month is in daylight saving time. All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. The percentage of time spent at various humidity comfort levels, categorized by dew point. Home | Privacy & Cookies | Contact | About. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. 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). 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 . Daytime temperatures usually reach 22°C in Los Angeles in April, falling to 11°C at night. By the end of the month, the days have lengthened to 13:32 from sunrise to sunset. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. But April does not normally get as cold as 40 °F (4 °C). The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands. For reference, on August 24, the hottest day of the year, temperatures in Los Angeles typically range from 66Â°F to 85Â°F, while on December 24, the coldest day of the year, they range from 48Â°F to 67Â°F. The average growing degree days accumulated over the course of April, with 25th to 75th and 10th to 90th percentile bands. The area within 2 miles of Los Angeles is covered by artificial surfaces (100%), within 10 miles by artificial surfaces (94%), and within 50 miles by shrubs (37%) and water (28%). Average Weather in April in Los Angeles California, United States.
The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. 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. From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night. Sunlight in April at Los Angeles lasts for 13 hours and 3 minutes a day on average. How sunny is it in Los Angeles in April? From the start to the end of the month, the length of the day increases by 58 minutes, implying an average daily increase of 1 minute, 59 seconds, and weekly increase of 13 minutes, 55 seconds. The chance that a given day will be muggy in Los Angeles is essentially constant during April, remaining around 0% throughout. There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Los Angeles. The number of hours during which the Sun is visible (black line). These durations can vary by a minute or two from year to year. The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 76% of the time. The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands. The percentage of time spent in various temperature bands. The average surface water temperature in Los Angeles is essentially constant during April, remaining within 1Â°F of 60Â°F throughout. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . The days at Los Angeles warm steadily during April. Safi, Morocco (5,943 miles away); Port Elizabeth, South Africa (10,386 miles); and Perth, Australia (9,346 miles) are the far-away foreign places with temperatures most similar to Los Angeles (view comparison). We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series.
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