Average Weather in Las Lajas Argentina
In Las Lajas, the summers are warm, dry, and mostly clear and the winters are very cold, wet, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 33°F to 80°F and is rarely below 25°F or above 89°F.
Based on the tourism score, the best time of year to visit Las Lajas for warm-weather activities is from mid December to early March.
The warm season lasts for 3.6 months, from November 28 to March 17, with an average daily high temperature above 74°F. The hottest day of the year is January 13, with an average high of 80°F and low of 52°F.
The cool season lasts for 3.2 months, from May 21 to August 27, with an average daily high temperature below 55°F. The coldest day of the year is July 24, with an average low of 33°F and high of 49°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
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
In Las Lajas, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Las Lajas begins around October 14 and lasts for 5.8 months, ending around April 7. On January 21, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 83% of the time, and overcast or mostly cloudy 17% of the time.
The cloudier part of the year begins around April 7 and lasts for 6.2 months, ending around October 14. On May 28, the cloudiest day of the year, the sky is overcast or mostly cloudy 54% of the time, and clear, mostly clear, or partly cloudy 46% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Las Lajas varies significantly throughout the year.
The wetter season lasts 4.4 months, from April 30 to September 10, with a greater than 27% chance of a given day being a wet day. The chance of a wet day peaks at 43% on June 17.
The drier season lasts 7.6 months, from September 10 to April 30. The smallest chance of a wet day is 10% on January 14.
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 39% on June 9.
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. Las Lajas experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Las Lajas. The most rain falls during the 31 days centered around June 5, with an average total accumulation of 3.9 inches.
The least rain falls around January 1, with an average total accumulation of 0.7 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Las Lajas does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Las Lajas varies significantly over the course of the year. In 2021, the shortest day is June 21, with 9 hours, 28 minutes of daylight; the longest day is December 21, with 14 hours, 52 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:10 AM on December 8, and the latest sunrise is 2 hours, 49 minutes later at 8:59 AM on June 28. The earliest sunset is at 6:26 PM on June 12, and the latest sunset is 2 hours, 43 minutes later at 9:09 PM on January 4.
Daylight saving time (DST) is not observed in Las Lajas during 2021.
Sunrise & Sunset with Twilight
The figure below presents a compact representation of key lunar data for 2021. 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.
Moon Rise, Set & Phases
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 perceived humidity level in Las Lajas, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Las Lajas experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.0 months, from October 8 to January 9, with average wind speeds of more than 10.3 miles per hour. The windiest day of the year is December 7, with an average hourly wind speed of 11.5 miles per hour.
The calmer time of year lasts for 9.0 months, from January 9 to October 8. The calmest day of the year is February 26, with an average hourly wind speed of 9.1 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Las Lajas is from the west throughout the year.
Best Time of Year to Visit
To characterize how pleasant the weather is in Las Lajas 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 Las Lajas for general outdoor tourist activities is from mid December to early March, with a peak score in the second week of January.
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 Las Lajas for hot-weather activities is from late December to mid February, with a peak score in the second week of January.
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 Las Lajas typically lasts for 6.0 months (183 days), from around October 20 to around April 21, rarely starting before September 28 or after November 13, and rarely ending before April 2 or after May 16.
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 Las Lajas should appear around September 23, only rarely appearing before September 14 or after October 3.
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 extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.4 months, from November 5 to February 15, with an average daily incident shortwave energy per square meter above 7.8 kWh. The brightest day of the year is December 28, with an average of 9.2 kWh.
The darker period of the year lasts for 3.8 months, from April 26 to August 19, with an average daily incident shortwave energy per square meter below 3.6 kWh. The darkest day of the year is June 22, with an average of 2.2 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Las Lajas are -38.523 deg latitude, -70.367 deg longitude, and 2,356 ft elevation.
The topography within 2 miles of Las Lajas contains significant variations in elevation, with a maximum elevation change of 594 feet and an average elevation above sea level of 2,509 feet. Within 10 miles contains significant variations in elevation (2,277 feet). Within 50 miles contains large variations in elevation (7,628 feet).
The area within 2 miles of Las Lajas is covered by trees (32%), grassland (29%), bare soil (20%), and sparse vegetation (12%), within 10 miles by trees (29%) and grassland (26%), and within 50 miles by bare soil (30%) and trees (21%).
This report illustrates the typical weather in Las Lajas, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Las Lajas.
For each station, the records are corrected for the elevation difference between that station and Las Lajas 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 Las Lajas is computed as the weighted average of the individual contributions from each station, in addition to a contribution from the MERRA-2 reconstruction, corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Las Lajas.
The station weights are proportional to the inverse of the distance between Las Lajas and a given station.
The weight assigned to the MERRA-2 value depends on the distance from Las Lajas to the nearest station, increasing from 0% at 150 kilometers to 100% at 200 kilometers. In this case, the MERRA-2 weight is 49%.
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 © 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.