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Fall Weather at Campo California, United States

Daily high temperatures decrease by 26°F, from 89°F to 63°F, rarely falling below 52°F or exceeding 96°F.

Daily low temperatures decrease by 17°F, from 55°F to 38°F, rarely falling below 30°F or exceeding 63°F.

For reference, on August 15, the hottest day of the year, temperatures at Campo typically range from 56°F to 91°F, while on December 24, the coldest day of the year, they range from 36°F to 59°F.

Average High and Low Temperature in the Fall at Campo

Average High and Low Temperature in the Fall at CampoSepOctNov30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FSummerWinterSep 189°FSep 189°F55°F55°FNov 3063°FNov 3063°F38°F38°FOct 181°FOct 181°F49°F49°FNov 171°FNov 171°F43°F43°F
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 fall 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.

Average Hourly Temperature in the Fall at Campo

Average Hourly Temperature in the Fall at CampoSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWintervery coldvery coldcoldcoldcoolcomfortablewarmhot
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chillán, Chile (5,581 miles away); Aïn Bessem, Algeria (6,311 miles); and Ceres, South Africa (9,904 miles) are the far-away foreign places with temperatures most similar to Campo (view comparison).

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The fall at Campo experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 11% to 34%. The lowest chance of overcast or mostly cloudy conditions is 10% on September 9.

The clearest day of the fall is September 9, 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 9, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.

Cloud Cover Categories in the Fall at Campo

Cloud Cover Categories in the Fall at CampoSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinterFeb 2058%Feb 2058%Sep 189%Sep 189%Nov 3065%Nov 3065%Oct 187%Oct 187%Nov 174%Nov 174%clearmostly clearovercastpartly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Campo, the chance of a wet day over the course of the fall is very rapidly increasing, starting the season at 3% and ending it at 12%.

For reference, the year's highest daily chance of a wet day is 18% on February 21, and its lowest chance is 1% on June 13.

Probability of Precipitation in the Fall at Campo

Probability of Precipitation in the Fall at CampoSepOctNov0%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%SummerWinterSep 113%Sep 113%Nov 3012%Nov 3012%Oct 14%Oct 14%Nov 17%Nov 17%rainmixed
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 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 fall at Campo is increasing, starting the season at 0.2 inches, when it rarely exceeds 0.6 inches or falls below -0.0 inches, and ending the season at 1.1 inches, when it rarely exceeds 2.7 inches.

Average Monthly Rainfall in the Fall at Campo

Average Monthly Rainfall in the Fall at CampoSepOctNov0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 inSummerWinterSep 10.2 inSep 10.2 inNov 301.1 inNov 301.1 inOct 10.3 inOct 10.3 inNov 10.6 inNov 10.6 in
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 snowfall.

Over the course of the fall at Campo, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 2 hours, 38 minutes, implying an average daily decrease of 1 minute, 46 seconds, and weekly decrease of 12 minutes, 19 seconds.

The shortest day of the fall is November 30, with 10 hours, 10 minutes of daylight and the longest day is September 1, with 12 hours, 48 minutes of daylight.

Hours of Daylight and Twilight in the Fall at Campo

Hours of Daylight and Twilight in the Fall at CampoSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2212 hr, 9 minSep 2212 hr, 9 minnightnightdaydayNov 3010 hr, 10 minNov 3010 hr, 10 minNov 110 hr, 51 minNov 110 hr, 51 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 fall at Campo is 7:04 AM on November 2 and the earliest sunrise is 59 minutes earlier at 6:05 AM on November 3.

The latest sunset is 7:09 PM on September 1 and the earliest sunset is 2 hours, 30 minutes earlier at 4:39 PM on November 30.

Daylight saving time (DST) starts at 1:00 AM on November 3, 2024, shifting sunrise and sunset to be an hour later.

For reference, on June 20, the longest day of the year, the Sun rises at 5:38 AM and sets 14 hours, 18 minutes later, at 7:56 PM, while on December 21, the shortest day of the year, it rises at 6:44 AM and sets 10 hours, 0 minutes later, at 4:44 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall at Campo

Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall at CampoSepOctNov12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSummerWinter6:05 AM6:05 AMNov 34:52 PMNov 34:52 PM6:21 AM6:21 AMSep 17:09 PMSep 17:09 PM6:29 AM6:29 AMNov 304:39 PMNov 304:39 PM6:40 AM6:40 AMOct 16:29 PMOct 16:29 PMDSTNov 3DSTNov 3SolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the fall. 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. The transitions to and from daylight saving time are indicated by the 'DST' labels.

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.

Solar Elevation and Azimuth in the Fall at Campo

Solar Elevation and Azimuth in the Fall at CampoSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWinter01020203040506000102030304070
northeastsouthwest
Solar elevation and azimuth in the the fall of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the fall 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.

Moon Rise, Set & Phases in the Fall at Campo

Moon Rise, Set & Phases in the Fall at CampoSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSummerWinterAug 44:14 AMAug 44:14 AMAug 1911:26 AMAug 1911:26 AMSep 26:56 PMSep 26:56 PMSep 177:35 PMSep 177:35 PMOct 211:50 AMOct 211:50 AMOct 174:27 AMOct 174:27 AMNov 15:48 AMNov 15:48 AMNov 151:29 PMNov 151:29 PMNov 3010:22 PMNov 3010:22 PMDec 151:02 AMDec 151:02 AMDec 302:28 PMDec 302:28 PM8:15 PM8:15 PM7:10 PM7:10 PM5:57 AM5:57 AM7:13 PM7:13 PM6:47 PM6:47 PM7:07 AM7:07 AM6:33 AM6:33 AM6:29 PM6:29 PM5:45 PM5:45 PM7:05 AM7:05 AM7:15 AM7:15 AM5:54 PM5:54 PM4:30 PM4:30 PM6:06 AM6:06 AM4:06 PM4:06 PM3:58 PM3:58 PM7:16 AM7:16 AM6:53 AM6:53 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 at Campo is gradually decreasing during the fall, falling from 2% to 0% over the course of the season.

For reference, on August 14, the muggiest day of the year, there are muggy conditions 3% 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 the Fall at Campo

Humidity Comfort Levels in the Fall at CampoSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SummerWinterSep 12%Sep 12%Nov 300%Nov 300%Oct 11%Oct 11%Nov 10%Nov 10%comfortablecomfortabledrydryhumidhumid
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 at Campo is essentially constant during the fall, remaining within 0.2 miles per hour of 6.9 miles per hour throughout.

For reference, on May 22, the windiest day of the year, the daily average wind speed is 9.5 miles per hour, while on October 22, the calmest day of the year, the daily average wind speed is 6.7 miles per hour.

The lowest daily average wind speed during the fall is 6.7 miles per hour on October 23.

Average Wind Speed in the Fall at Campo

Average Wind Speed in the Fall at CampoSepOctNov0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphSummerWinterOct 236.7 mphOct 236.7 mphSep 16.9 mphSep 16.9 mphNov 307.1 mphNov 307.1 mphOct 17.0 mphOct 17.0 mph
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 at Campo throughout the fall is predominantly from the west, with a peak proportion of 80% on September 1.

Wind Direction in the Fall at Campo

Wind Direction in the Fall at CampoWESepOctNov0%100%20%80%40%60%60%40%80%20%100%0%SummerWinterwesteastnorthsouth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Campo 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 at Campo is decreasing during the fall, falling by 7°F, from 69°F to 62°F, over the course of the season.

Average Water Temperature in the Fall at Campo

Average Water Temperature in the Fall at CampoSepOctNov56°F56°F58°F58°F60°F60°F62°F62°F64°F64°F66°F66°F68°F68°F70°F70°F72°F72°F74°F74°FSummerWinterSep 169°FSep 169°FNov 3062°FNov 3062°FOct 167°FOct 167°FNov 165°FNov 165°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 at Campo typically lasts for 7.2 months (219 days), from around April 11 to around November 16, rarely starting before March 9 or after May 28, and rarely ending before October 15 or after December 15.

During the fall at Campo, the chance that a given day is within the growing season is very rapidly decreasing falling from 100% to 28% over the course of the season.

Time Spent in Various Temperature Bands and the Growing Season in the Fall at Campo

Time Spent in Various Temperature Bands and the Growing Season in the Fall at Campogrowing seasonSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinter100%Sep 1100%Sep 1Nov 3028%Nov 3028%98%Oct 198%Oct 174%Nov 174%Nov 1Dec 1510%Dec 1510%Sep 10100%Sep 10100%very coldcoldcoolcomfortablewarmhotfreezingsweltering
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 percentage of time spent in various temperature bands. 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 at Campo are very rapidly increasing during the fall, increasing by 1,035°F, from 2,662°F to 3,697°F, over the course of the season.

Growing Degree Days in the Fall at Campo

Growing Degree Days in the Fall at CampoSepOctNov2,400°F2,400°F2,600°F2,600°F2,800°F2,800°F3,000°F3,000°F3,200°F3,200°F3,400°F3,400°F3,600°F3,600°F3,800°F3,800°F4,000°F4,000°FSummerWinterSep 12,662°FSep 12,662°FNov 303,697°FNov 303,697°FOct 13,193°FOct 13,193°FNov 13,530°FNov 13,530°F
The average growing degree days accumulated over the course of the fall, with 25th to 75th and 10th to 90th percentile bands.

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 at Campo is very rapidly decreasing during the fall, falling by 3.4 kWh, from 6.9 kWh to 3.5 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Fall at Campo

Average Daily Incident Shortwave Solar Energy in the Fall at CampoSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhSummerWinterSep 16.9 kWhSep 16.9 kWhNov 303.5 kWhNov 303.5 kWhOct 15.9 kWhOct 15.9 kWhNov 14.5 kWhNov 14.5 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Campo are 32.626 deg latitude, -116.468 deg longitude, and 2,598 ft elevation.

The topography within 2 miles of Campo contains very significant variations in elevation, with a maximum elevation change of 863 feet and an average elevation above sea level of 2,738 feet. Within 10 miles contains very significant variations in elevation (3,212 feet). Within 50 miles contains large variations in elevation (6,686 feet).

The area within 2 miles of Campo is covered by shrubs (55%), grassland (34%), and cropland (11%), within 10 miles by shrubs (82%), and within 50 miles by shrubs (57%) and bare soil (13%).

This report illustrates the typical weather at Campo, 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

Campo 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.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to General Abelardo L. Rodríguez International Airport, Brown Field Municipal Airport, Gillespie Field, Ramona Airport, Ream Field, Montgomery Field Airport, Miramar Marine Corps Air Station, and San Diego International Airport.

Other Data

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.

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.

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.

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