Average Weather in June in Descanso California, United States
In Descanso, the month of June is characterized by rapidly rising daily high temperatures, with daily highs increasing by 9°F, from 73°F to 82°F over the course of the month, and rarely exceeding 90°F or dropping below 63°F.
Daily low temperatures increase by 5°F, from 44°F to 49°F, rarely falling below 39°F or exceeding 56°F.
For reference, on August 20, the hottest day of the year, temperatures in Descanso typically range from 54°F to 85°F, while on December 25, the coldest day of the year, they range from 32°F to 56°F.
Average High and Low Temperature in June
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on June. 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 June
The month of June in Descanso experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 17% to 11%. The lowest chance of overcast or mostly cloudy conditions is 10% on June 22.
The clearest day of the month is June 22, with clear, mostly clear, or partly cloudy conditions 90% of the time.
For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 42%, while on September 10, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.
Cloud Cover Categories in June
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Descanso, the chance of a wet day over the course of June is essentially constant, remaining around 1% throughout.
For reference, the year's highest daily chance of a wet day is 20% on February 21, and its lowest chance is 1% on June 26.
Probability of Precipitation in June
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 June in Descanso is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.3 inches.
The lowest average 31-day accumulation is 0.0 inches on June 17.
Average Monthly Rainfall in June
Over the course of June in Descanso, the length of the day is essentially constant. The shortest day of the month is June 1, with 14 hours, 11 minutes of daylight and the longest day is June 21, with 14 hours, 19 minutes of daylight.
Hours of Daylight and Twilight in June
The earliest sunrise of the month in Descanso is 5:37 AM on June 11 and the latest sunrise is 4 minutes later at 5:41 AM on June 30.
The earliest sunset is 7:50 PM on June 1 and the latest sunset is 9 minutes later at 7:58 PM on June 29.
Daylight saving time is observed in Descanso during 2017, but it neither starts nor ends during June, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:38 AM and sets 14 hours, 19 minutes later, at 7:57 PM, while on December 21, the shortest day of the year, it rises at 6:45 AM and sets 9 hours, 59 minutes later, at 4:44 PM.
Sunrise & Sunset with Twilight in June
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 Descanso is essentially constant during June, remaining around 0% throughout.
For reference, on August 13, the muggiest day of the year, there are muggy conditions 1% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in June
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 Descanso is gradually decreasing during June, decreasing from 9.2 miles per hour to 8.3 miles per hour over the course of the month.
For reference, on May 23, the windiest day of the year, the daily average wind speed is 9.2 miles per hour, while on October 23, the calmest day of the year, the daily average wind speed is 6.6 miles per hour.
Average Wind Speed in June
Wind Direction in June
Descanso 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 Descanso is gradually increasing during June, rising by 3°F, from 64°F to 66°F, over the course of the month.
Average Water Temperature in June
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 (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).
The growing season in Descanso typically lasts for 6.8 months (207 days), from around April 15 to around November 8, rarely starting before March 21 or after May 9, and rarely ending before October 16 or after December 2.
The month of June in Descanso is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in June
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 Descanso is increasing during June, increasing by 353°F, from 610°F to 963°F, over the course of the month.
Growing Degree Days in June
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 Descanso is essentially constant during June, remaining within 0.1 kWh of 8.5 kWh throughout.
The highest average daily incident shortwave solar energy during June is 8.6 kWh on June 19.
Average Daily Incident Shortwave Solar Energy in June
For the purposes of this report, the geographical coordinates of Descanso are 32.853 deg latitude, -116.616 deg longitude, and 3,661 ft elevation.
The topography within 2 miles of Descanso contains very significant variations in elevation, with a maximum elevation change of 1,627 feet and an average elevation above sea level of 3,639 feet. Within 10 miles contains very significant variations in elevation (5,699 feet). Within 50 miles also contains extreme variations in elevation (8,806 feet).
The area within 2 miles of Descanso is covered by shrubs (92%), within 10 miles by shrubs (89%), and within 50 miles by shrubs (57%) and bare soil (11%).
This report illustrates the typical weather in Descanso 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 Descanso.
For each station, the records are corrected for the elevation difference between that station and Descanso 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 Descanso is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Descanso and a given station.
The stations contributing to this reconstruction are: Campo (55%, 29 kilometers, southeast); Gillespie Field (14%, 34 kilometers, west); Ramona Airport (22%, 35 kilometers, northwest); and Thermal Airport (8%, 96 kilometers, northeast).
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.
The 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.