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Average Weather in San Francisco del Chañar Argentina

In San Francisco del Chañar, the wet season is warm, the dry season is cool, and it is mostly clear year round. Over the course of the year, the temperature typically varies from 38°F to 84°F and is rarely below 28°F or above 93°F.

Temperature

The warm season lasts for 3.8 months, from November 11 to March 4, with an average daily high temperature above 79°F. The hottest day of the year is January 1, with an average high of 84°F and low of 62°F.

The cool season lasts for 2.7 months, from May 20 to August 9, with an average daily high temperature below 65°F. The coldest day of the year is July 20, with an average low of 38°F and high of 61°F.

Average High and Low Temperature

Average High and Low Temperature in San Francisco del ChañarwarmwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F10°F20°F30°F40°F50°F60°F70°F80°F90°F100°FJul 2061°FJul 2061°FJan 184°FJan 184°F38°F38°F62°F62°FNov 1179°FNov 1179°FMar 479°FMar 479°FMay 2065°FMay 2065°F56°F56°F60°F60°F46°F46°FLowHigh
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 entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature in San Francisco del ChañarJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMvery coldcoldcoolwarmcomfortable
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

In San Francisco del Chañar, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year in San Francisco del Chañar begins around July 15 and lasts for 9.6 months, ending around May 2. On March 28, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 79% of the time, and overcast or mostly cloudy 21% of the time.

The cloudier part of the year begins around May 2 and lasts for 2.4 months, ending around July 15. On May 31, the cloudiest day of the year, the sky is overcast or mostly cloudy 38% of the time, and clear, mostly clear, or partly cloudy 62% of the time.

Cloud Cover Categories

Cloud Cover Categories in San Francisco del ChañarclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Mar 2879%Mar 2879%May 3162%May 3162%Jul 1571%Jul 1571%May 271%May 271%clearpartly cloudyovercastmostly clearmostly cloudy
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. The chance of wet days in San Francisco del Chañar varies significantly throughout the year.

The wetter season lasts 5.9 months, from October 19 to April 16, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 41% on January 1.

The drier season lasts 6.1 months, from April 16 to October 19. The smallest chance of a wet day is 3% on August 10.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 41% on January 1.

Daily Chance of Precipitation

Daily Chance of Precipitation in San Francisco del ChañarwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 141%Jan 141%Aug 103%Aug 103%Oct 1922%Oct 1922%Apr 1622%Apr 1622%rain
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 months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. San Francisco del Chañar experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.0 months, from August 30 to May 28, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around February 3, with an average total accumulation of 4.6 inches.

The rainless period of the year lasts for 3.0 months, from May 28 to August 30. The least rain falls around August 5, with an average total accumulation of 0.3 inches.

Average Monthly Rainfall

Average Monthly Rainfall in San Francisco del ChañarrainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in2 in4 in6 in8 inFeb 34.6 inFeb 34.6 inAug 50.3 inAug 50.3 inJun 220.3 inJun 220.3 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 liquid-equivalent snowfall.

Sun

The length of the day in San Francisco del Chañar varies significantly over the course of the year. In 2017, the shortest day is June 21, with 10 hours, 14 minutes of daylight; the longest day is December 21, with 14 hours, 4 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in San Francisco del ChañarJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minSep 2212 hr, 7 minSep 2214 hr, 4 minDec 2114 hr, 4 minDec 2112 hr, 9 minMar 2012 hr, 9 minMar 2010 hr, 14 minJun 2110 hr, 14 minJun 21daydaynight
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 earliest sunrise is at 6:07 AM on December 3, and the latest sunrise is 2 hours, 4 minutes later at 8:11 AM on July 1. The earliest sunset is at 6:23 PM on June 9, and the latest sunset is 1 hour, 58 minutes later at 8:20 PM on January 9.

Daylight saving time (DST) is not observed in San Francisco del Chañar during 2017.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in San Francisco del ChañarJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMDec 36:07 AMDec 36:07 AM8:20 PMJan 98:20 PMJan 9Jun 96:23 PMJun 96:23 PM8:11 AMJul 18:11 AMJul 1daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. 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.

San Francisco del Chañar experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 5.2 months, from November 18 to April 24, during which time the comfort level is muggy, oppressive, or miserable at least 8% of the time. The muggiest day of the year is January 24, with muggy conditions 34% of the time.

The least muggy day of the year is August 5, when muggy conditions are essentially unheard of.

Humidity Comfort Levels

Humidity Comfort Levels in San Francisco del ChañarmuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Aug 50%Aug 50%Jan 2434%Jan 2434%Nov 188%Nov 188%Apr 248%Apr 248%humidhumiddrydrymuggymuggycomfortablecomfortableoppressiveoppressive
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 San Francisco del Chañar experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 4.7 months, from August 9 to December 31, with average wind speeds of more than 8.6 miles per hour. The windiest day of the year is October 9, with an average hourly wind speed of 10.1 miles per hour.

The calmer time of year lasts for 7.3 months, from December 31 to August 9. The calmest day of the year is June 14, with an average hourly wind speed of 7.1 miles per hour.

Average Wind Speed

Average Wind Speed in San Francisco del ChañarwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mph14 mphOct 910.1 mphOct 910.1 mphJun 147.1 mphJun 147.1 mphAug 98.6 mphAug 98.6 mphDec 318.6 mphDec 318.6 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in San Francisco del Chañar varies throughout the year.

The wind is most often from the north for 3.7 weeks, from June 15 to July 11, with a peak percentage of 35% on June 17. The wind is most often from the east for 11 months, from July 11 to June 15, with a peak percentage of 62% on January 1.

Wind Direction

Wind Direction in San Francisco del ChañarENEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%southnortheast
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).

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 experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.6 months, from October 24 to February 11, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest day of the year is December 11, with an average of 7.8 kWh.

The darker period of the year lasts for 3.2 months, from May 1 to August 6, with an average daily incident shortwave energy per square meter below 4.2 kWh. The darkest day of the year is June 17, with an average of 3.3 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in San Francisco del ChañarbrightbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWh10 kWhDec 117.8 kWhDec 117.8 kWhJun 173.3 kWhJun 173.3 kWhOct 246.9 kWhOct 246.9 kWhFeb 116.9 kWhFeb 116.9 kWhMay 14.2 kWhMay 14.2 kWhAug 64.2 kWhAug 64.2 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.

Topography

For the purposes of this report, the geographical coordinates of San Francisco del Chañar are -29.790 deg latitude, -63.939 deg longitude, and 2,287 ft elevation.

The topography within 2 miles of San Francisco del Chañar contains only modest variations in elevation, with a maximum elevation change of 197 feet and an average elevation above sea level of 2,285 feet. Within 10 miles contains only modest variations in elevation (1,060 feet). Within 50 miles contains very significant variations in elevation (3,556 feet).

The area within 2 miles of San Francisco del Chañar is covered by shrubs (33%), cropland (32%), trees (19%), and grassland (15%), within 10 miles by shrubs (53%) and cropland (21%), and within 50 miles by shrubs (43%) and trees (25%).

Data Sources

This report illustrates the typical weather in San Francisco del Chañar, 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 is only a single weather station, Ceres Aerodrome, in our network suitable to be used as a proxy for the historical temperature and dew point records of San Francisco del Chañar.

At a distance of 192 kilometers from San Francisco del Chañar, further than our threshold of 150 kilometers, this station is deemed insufficiently nearby to be relied upon as our primary source for temperature and dew point records. Consequently, the station records are blended with interpolated values from NASA's MERRA-2 satellite-era reanalysis , and both are corrected for elevation differences according to the International Standard Atmosphere .

The weight assigned to the MERRA-2 value depends on the distance from San Francisco del Chañar to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 46%, making the weight assigned to the weather station 54%.

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.