Climate and Average Weather Year Round in Llallagua BoliviaIn Llallagua, the summers are short, comfortable, and mostly cloudy; the winters are short, very cold, and mostly clear; and it is dry year round. Over the course of the year, the temperature typically varies from 22°F to 69°F and is rarely below 17°F or above 77°F. Based on the tourism score, the best time of year to visit Llallagua for warm-weather activities is from early September to early December. Average Temperature in LlallaguaThe warm season lasts for 2.7 months, from September 26 to December 15, with an average daily high temperature above 67°F. The hottest month of the year in Llallagua is November, with an average high of 69°F and low of 40°F. The cold season lasts for 1.8 months, from May 29 to July 23, with an average daily high temperature below 61°F. The coldest month of the year in Llallagua is June, with an average low of 23°F and high of 60°F.
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. La Ciudad, Mexico (3,933 miles away) and Cerro La Calera, Mexico (3,444 miles) are the far-away foreign places with temperatures most similar to Llallagua (view comparison). CloudsIn Llallagua, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year. The clearer part of the year in Llallagua begins around April 11 and lasts for 6.0 months, ending around October 13. The clearest month of the year in Llallagua is July, during which on average the sky is clear, mostly clear, or partly cloudy 74% of the time. The cloudier part of the year begins around October 13 and lasts for 6.0 months, ending around April 11. The cloudiest month of the year in Llallagua is January, during which on average the sky is overcast or mostly cloudy 79% of the time.
PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Llallagua varies significantly throughout the year. The wetter season lasts 3.3 months, from December 9 to March 20, with a greater than 22% chance of a given day being a wet day. The month with the most wet days in Llallagua is January, with an average of 12.4 days with at least 0.04 inches of precipitation. The drier season lasts 8.7 months, from March 20 to December 9. The month with the fewest wet days in Llallagua is July, with an average of 0.6 days with at least 0.04 inches of precipitation. Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Llallagua is January, with an average of 12.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 43% on January 11.
RainfallTo 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. Llallagua experiences significant seasonal variation in monthly rainfall. The rainy period of the year lasts for 6.7 months, from September 20 to April 11, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Llallagua is January, with an average rainfall of 2.7 inches. The rainless period of the year lasts for 5.3 months, from April 11 to September 20. The month with the least rain in Llallagua is July, with an average rainfall of 0.1 inches.
SunThe length of the day in Llallagua varies over the course of the year. In 2024, the shortest day is June 20, with 11 hours, 1 minute of daylight; the longest day is December 21, with 13 hours, 14 minutes of daylight.
The earliest sunrise is at 5:40 AM on November 25, and the latest sunrise is 1 hour, 19 minutes later at 6:59 AM on July 6. The earliest sunset is at 5:56 PM on June 3, and the latest sunset is 1 hour, 12 minutes later at 7:09 PM on January 17. Daylight saving time (DST) is not observed in Llallagua during 2024. 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. MoonThe figure below presents a compact representation of key lunar data for 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. HumidityWe 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 Llallagua, 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.
WindThis 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 Llallagua experiences mild seasonal variation over the course of the year. The windier part of the year lasts for 9.2 months, from June 3 to March 8, with average wind speeds of more than 7.1 miles per hour. The windiest month of the year in Llallagua is September, with an average hourly wind speed of 7.8 miles per hour. The calmer time of year lasts for 2.8 months, from March 8 to June 3. The calmest month of the year in Llallagua is April, with an average hourly wind speed of 6.5 miles per hour.
The predominant average hourly wind direction in Llallagua varies throughout the year. The wind is most often from the north for 2.6 weeks, from April 5 to April 23 and for 1.1 months, from October 5 to November 7, with a peak percentage of 39% on October 17. The wind is most often from the west for 5.4 months, from April 23 to October 5, with a peak percentage of 62% on June 26. The wind is most often from the east for 4.9 months, from November 7 to April 5, with a peak percentage of 54% on January 1. Best Time of Year to VisitTo characterize how pleasant the weather is in Llallagua 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 Llallagua for general outdoor tourist activities is from early September to early December, with a peak score in the last week of October. Tourism Score in LlallaguaThe 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 Llallagua for hot-weather activities is from late October to late November, with a peak score in the third week of November. Beach/Pool Score in LlallaguaMethodologyFor 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. Growing SeasonDefinitions 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 Llallagua typically lasts for 4.6 months (139 days), from around November 5 to around March 24, rarely starting before October 4 or after December 31, and rarely ending before January 31 or after April 19. 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 Llallagua should appear around August 11, only rarely appearing before August 3 or after August 24. Solar EnergyThis 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 some seasonal variation over the course of the year. The brighter period of the year lasts for 2.5 months, from October 4 to December 18, with an average daily incident shortwave energy per square meter above 7.4 kWh. The brightest month of the year in Llallagua is November, with an average of 7.8 kWh. The darker period of the year lasts for 2.3 months, from May 16 to July 24, with an average daily incident shortwave energy per square meter below 5.9 kWh. The darkest month of the year in Llallagua is June, with an average of 5.5 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Llallagua are -18.424 deg latitude, -66.584 deg longitude, and 12,785 ft elevation. The topography within 2 miles of Llallagua contains large variations in elevation, with a maximum elevation change of 2,815 feet and an average elevation above sea level of 13,039 feet. Within 10 miles contains large variations in elevation (4,396 feet). Within 50 miles also contains extreme variations in elevation (9,948 feet). The area within 2 miles of Llallagua is covered by sparse vegetation (63%), artificial surfaces (22%), and bare soil (12%), within 10 miles by sparse vegetation (46%) and grassland (23%), and within 50 miles by sparse vegetation (25%) and bare soil (22%). Data SourcesThis report illustrates the typical weather in Llallagua, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointThere is only a single weather station, Jorge Wilsterman, in our network suitable to be used as a proxy for the historical temperature and dew point records of Llallagua. At a distance of 120 kilometers from Llallagua, 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 Llallagua 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. Other DataAll 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. DisclaimerThe 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. Please review our full terms contained on our Terms of Service page. |