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.
Based on the tourism score, the best time of year to visit San Francisco del Chañar for warm-weather activities is from early October to mid April.
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
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
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
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
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
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
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 10, 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
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
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
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.
Best Time of Year to Visit
To characterize how pleasant the weather is in San Francisco del Chañar throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit San Francisco del Chañar for general outdoor tourist activities is from early October to mid April, with a peak score in the second week of March.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit San Francisco del Chañar for hot-weather activities is from late November to mid February, with a peak score in the last week of December.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
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 San Francisco del Chañar typically lasts for 8.8 months (266 days), from around August 29 to around May 23, rarely starting before July 25 or after September 23, and rarely ending before April 25 or after July 2.
Time Spent in Various Temperature Bands and 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.
Based on growing degree days alone, the first spring blooms in San Francisco del Chañar should appear around July 25, only rarely appearing before July 17 or after August 5.
Growing Degree Days
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
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%).
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, Villa De Maria Del Rio Seco, 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 28 kilometers from San Francisco del Chañar, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and San Francisco del Chañar according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
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.