April Weather at Murrin Murrin Airport Western Australia, AustraliaDaily high temperatures decrease by 8°F, from 79°F to 71°F, rarely falling below 63°F or exceeding 89°F. Daily low temperatures decrease by 6°F, from 54°F to 48°F, rarely falling below 42°F or exceeding 63°F. For reference, on January 20, the hottest day of the year, temperatures at Murrin Murrin Airport typically range from 64°F to 94°F, while on July 19, the coldest day of the year, they range from 41°F to 59°F. 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. Villa Basilio Nievas, Argentina (8,224 miles away) and De Aar, Northern Cape, South Africa (5,662 miles) are the far-away foreign places with temperatures most similar to Murrin Murrin Airport (view comparison). CloudsThe month of April at Murrin Murrin Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 32% throughout the month. The highest chance of overcast or mostly cloudy conditions is 34% on April 12. The clearest day of the month is April 30, with clear, mostly clear, or partly cloudy conditions 70% of the time. For reference, on April 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 34%, while on September 10, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 93%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Murrin Murrin Airport, the chance of a wet day over the course of April is gradually decreasing, starting the month at 12% and ending it at 9%. For reference, the year's highest daily chance of a wet day is 14% on February 14, and its lowest chance is 3% on September 10. RainfallTo 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 at Murrin Murrin Airport is essentially constant, remaining about 0.8 inches throughout, and rarely exceeding 2.3 inches. SunOver the course of April at Murrin Murrin Airport, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 46 minutes, implying an average daily decrease of 1 minute, 35 seconds, and weekly decrease of 11 minutes, 6 seconds. The shortest day of the month is April 30, with 11 hours, 1 minute of daylight and the longest day is April 1, with 11 hours, 47 minutes of daylight. The earliest sunrise of the month at Murrin Murrin Airport is 6:02 AM on April 1 and the latest sunrise is 16 minutes later at 6:19 AM on April 30. The latest sunset is 5:49 PM on April 1 and the earliest sunset is 30 minutes earlier at 5:19 PM on April 30. Daylight saving time is not observed at Murrin Murrin Airport during 2024. For reference, on December 21, the longest day of the year, the Sun rises at 4:51 AM and sets 13 hours, 59 minutes later, at 6:49 PM, while on June 20, the shortest day of the year, it rises at 6:44 AM and sets 10 hours, 19 minutes later, at 5:03 PM. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation. MoonThe figure below presents a compact representation of key lunar data for April 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
HumidityWe 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 at Murrin Murrin Airport is essentially constant during April, remaining around 1% throughout. For reference, on February 14, the muggiest day of the year, there are muggy conditions 7% of the time, while on August 15, the least muggy day of the year, there are muggy conditions 0% of the time. WindThis 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 at Murrin Murrin Airport is decreasing during April, decreasing from 10.5 miles per hour to 9.3 miles per hour over the course of the month. For reference, on January 16, the windiest day of the year, the daily average wind speed is 12.6 miles per hour, while on May 16, the calmest day of the year, the daily average wind speed is 9.2 miles per hour. The hourly average wind direction at Murrin Murrin Airport throughout April is predominantly from the east, with a peak proportion of 59% on April 1. Growing SeasonDefinitions 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 (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). While it does not do so every year, freezing temperatures are seen at Murrin Murrin Airport over some winters. The day least likely to be in the growing season is July 7, with a 50% chance. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F. The average accumulated growing degree days at Murrin Murrin Airport are increasing during April, increasing by 385°F, from 4,496°F to 4,882°F, over the course of the month. Solar EnergyThis 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 at Murrin Murrin Airport is decreasing during April, falling by 1.1 kWh, from 5.5 kWh to 4.4 kWh, over the course of the month. TopographyFor the purposes of this report, the geographical coordinates of Murrin Murrin Airport are -28.710 deg latitude, 121.886 deg longitude, and 1,545 ft elevation. The topography within 2 miles of Murrin Murrin Airport contains only modest variations in elevation, with a maximum elevation change of 131 feet and an average elevation above sea level of 1,553 feet. Within 10 miles also contains only modest variations in elevation (443 feet). Within 50 miles contains only modest variations in elevation (1,434 feet). The area within 2 miles of Murrin Murrin Airport is covered by sparse vegetation (90%), within 10 miles by sparse vegetation (92%), and within 50 miles by sparse vegetation (83%) and grassland (11%). Data SourcesThis report illustrates the typical weather at Murrin Murrin Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointMurrin Murrin Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required. There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.Other DataAll 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. 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 airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Please review our full terms contained on our Terms of Service page. |