Spring Weather in Pasil PhilippinesDaily high temperatures increase by 4°F, from 77°F to 80°F, rarely falling below 72°F or exceeding 87°F. The highest daily average high temperature is 83°F on April 27. Daily low temperatures increase by 6°F, from 58°F to 64°F, rarely falling below 54°F or exceeding 65°F. For reference, on April 26, the hottest day of the year, temperatures in Pasil typically range from 63°F to 83°F, while on January 15, the coldest day of the year, they range from 56°F to 71°F. The figure below shows you a compact characterization of the hourly average spring temperatures. 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. CloudsThe spring in Pasil experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 42% to 94%. The clearest day of the spring is March 2, with clear, mostly clear, or partly cloudy conditions 58% of the time. For reference, on June 6, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 94%, while on February 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 58%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Pasil, the chance of a wet day over the course of the spring is very rapidly increasing, starting the season at 9% and ending it at 51%. For reference, the year's highest daily chance of a wet day is 65% on August 14, and its lowest chance is 7% on February 4. RainfallTo show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day rainfall during the spring in Pasil is very rapidly increasing, starting the season at 0.8 inches, when it rarely exceeds 2.4 inches, and ending the season at 6.9 inches, when it rarely exceeds 12.2 inches or falls below 2.4 inches. SunOver the course of the spring in Pasil, the length of the day is rapidly increasing. From the start to the end of the season, the length of the day increases by 1 hour, 17 minutes, implying an average daily increase of 51 seconds, and weekly increase of 5 minutes, 58 seconds. The shortest day of the spring is March 1, with 11 hours, 48 minutes of daylight and the longest day is May 31, with 13 hours, 6 minutes of daylight. The latest sunrise of the spring in Pasil is 6:13 AM on March 1 and the earliest sunrise is 53 minutes earlier at 5:20 AM on May 31. The earliest sunset is 6:02 PM on March 1 and the latest sunset is 24 minutes later at 6:26 PM on May 31. Daylight saving time is not observed in Pasil during 2024. For reference, on June 20, the longest day of the year, the Sun rises at 5:22 AM and sets 13 hours, 10 minutes later, at 6:32 PM, while on December 21, the shortest day of the year, it rises at 6:20 AM and sets 11 hours, 5 minutes later, at 5:26 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 the spring of 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 in Pasil is very rapidly increasing during the spring, rising from 26% to 90% over the course of the season. For reference, on June 17, the muggiest day of the year, there are muggy conditions 92% of the time, while on January 25, the least muggy day of the year, there are muggy conditions 20% 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 in Pasil is decreasing during the spring, decreasing from 5.6 miles per hour to 4.0 miles per hour over the course of the season. For reference, on December 10, the windiest day of the year, the daily average wind speed is 7.9 miles per hour, while on May 15, the calmest day of the year, the daily average wind speed is 4.0 miles per hour. The lowest daily average wind speed during the spring is 4.0 miles per hour on May 15. The wind direction in Pasil during the spring is predominantly out of the east from March 1 to May 21 and the west from May 21 to May 31. Water TemperaturePasil 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 Pasil is increasing during the spring, rising by 5°F, from 81°F to 86°F, over the course of the season. 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). Temperatures in Pasil are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year. 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 in Pasil are very rapidly increasing during the spring, increasing by 1,837°F, from 807°F to 2,644°F, over the course of the season. 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 in Pasil is gradually decreasing during the spring, falling by 0.9 kWh, from 5.9 kWh to 5.0 kWh, over the course of the season. The highest average daily incident shortwave solar energy during the spring is 6.4 kWh on April 3. TopographyFor the purposes of this report, the geographical coordinates of Pasil are 17.383 deg latitude, 121.133 deg longitude, and 3,278 ft elevation. The topography within 2 miles of Pasil contains extreme variations in elevation, with a maximum elevation change of 5,059 feet and an average elevation above sea level of 3,443 feet. Within 10 miles also contains extreme variations in elevation (7,129 feet). Within 50 miles also contains extreme variations in elevation (8,770 feet). The area within 2 miles of Pasil is covered by trees (47%) and cropland (42%), within 10 miles by trees (63%) and cropland (28%), and within 50 miles by trees (46%) and cropland (40%). Data SourcesThis report illustrates the typical weather in Pasil, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointThere are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Pasil. For each station, the records are corrected for the elevation difference between that station and Pasil 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 Pasil is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Pasil and a given station. The stations contributing to this reconstruction are:
To get a sense of how much these sources agree with each other, you can view a comparison of Pasil and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. 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. |