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Average Weather in February in Descanso California, United States

In Descanso, the month of February is characterized by essentially constant daily high temperatures, with daily highs around 58°F throughout the month, rarely exceeding 70°F or dropping below 47°F.

Daily low temperatures are around 34°F, rarely falling below 25°F or exceeding 41°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 February

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 February. 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 February

Average Hourly Temperature in February in Descanso181522112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282812 AM4 AM8 AM12 PM4 PM8 PM12 AMJanMarcoldcoolvery cold
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < very cold < 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 February in Descanso experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 40% throughout the month. The highest chance of overcast or mostly cloudy conditions is 42% on February 20.

The clearest day of the month is February 1, with clear, mostly clear, or partly cloudy conditions 62% 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 February

Cloud Cover Categories in February in Descanso18152211223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728280%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanMarSep 1090%Sep 1090%Feb 162%Feb 162%Feb 2860%Feb 2860%Feb 1160%Feb 1160%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 Descanso, the chance of a wet day over the course of February is increasing, starting the month at 15% and ending it at 20%.

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.

Over the course of February in Descanso, the chance of a day with only rain increases from 13% to 18%, the chance of a day with mixed snow and rain remains an essentially constant 2% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.

Probability of Precipitation in February

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 February in Descanso is gradually increasing, starting the month at 2.0 inches, when it rarely exceeds 4.3 inches or falls below 0.1 inches, and ending the month at 2.3 inches, when it rarely exceeds 4.8 inches or falls below 0.3 inches.

The highest average 31-day accumulation is 2.4 inches on February 20.

Average Monthly Rainfall in February

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 February in Descanso, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 50 minutes, implying an average daily increase of 1 minute, 51 seconds, and weekly increase of 12 minutes, 55 seconds.

The shortest day of the month is February 1, with 10 hours, 38 minutes of daylight and the longest day is February 28, with 11 hours, 28 minutes of daylight.

Hours of Daylight and Twilight in February

Hours of Daylight and Twilight in February in Descanso18152211223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728280 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrJanMarnightnightdaydayFeb 110 hr, 38 minFeb 110 hr, 38 minFeb 2811 hr, 28 minFeb 2811 hr, 28 min
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 Descanso is 6:41 AM on February 1 and the earliest sunrise is 26 minutes earlier at 6:15 AM on February 28.

The earliest sunset is 5:19 PM on February 1 and the latest sunset is 24 minutes later at 5:43 PM on February 28.

Daylight saving time is observed in Descanso during 2017, but it neither starts nor ends during February, so the entire month is in standard 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 and Daylight Saving Time in February

Sunrise & Sunset with Twilight and Daylight Saving Time in February in Descanso181522112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282812 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJanMar6:15 AM6:15 AMFeb 285:43 PMFeb 285:43 PM6:41 AM6:41 AMFeb 15:19 PMFeb 15:19 PM6:33 AM6:33 AMFeb 115:28 PMFeb 115:28 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of February. 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 Descanso is essentially constant during February, 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 February

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 Descanso is gradually increasing during February, increasing from 7.3 miles per hour to 7.8 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 February

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 Descanso throughout February is predominantly from the west, with a peak proportion of 57% on February 28.

Wind Direction in February

Wind Direction in February in DescansoEW18152211223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728280%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanMarwesteastnorthsouth
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

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 essentially constant during February, remaining around 59°F throughout.

The lowest average surface water temperature during February is 59°F on February 10.

Average Water Temperature in February

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

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 (≥ 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 February in Descanso is reliably fully outside of the growing season.

Time Spent in Various Temperature Bands and the Growing Season in February

Time Spent in Various Temperature Bands and the Growing Season in February in Descanso18152211223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728280%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanMar0%Feb 150%Feb 15Mar 2110%Mar 2110%freezingcoldcoolvery coldcomfortable
The percentage of time spent in various temperature bands: frigid < 15°F < freezing < 32°F < very cold < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The black line is the percentage chance that a given day is within the growing season.

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 gradually increasing during February, increasing by 60°F, from 60°F to 120°F, over the course of the month.

Growing Degree Days in February

The average growing degree days accumulated over the course of February, 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 Descanso is increasing during February, rising by 1.1 kWh, from 3.9 kWh to 5.0 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in February

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 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%).

Data Sources

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).

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.

Disclaimer

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.