Climate and Average Weather Year Round in Sierra Grande Argentina

In Sierra Grande, the summers are warm and mostly clear, the winters are cold and partly cloudy, and it is dry and windy year round. Over the course of the year, the temperature typically varies from 35°F to 80°F and is rarely below 25°F or above 90°F.

Based on the tourism score, the best time of year to visit Sierra Grande for warm-weather activities is from early December to early March.

The warm season lasts for 3.7 months, from November 22 to March 12, with an average daily high temperature above 74°F. The hottest month of the year in Sierra Grande is January, with an average high of 80°F and low of 60°F.

The cool season lasts for 3.4 months, from May 17 to August 30, with an average daily high temperature below 57°F. The coldest month of the year in Sierra Grande is July, with an average low of 35°F and high of 52°F.

In Sierra Grande, 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 Sierra Grande begins around October 15 and lasts for 5.8 months, ending around April 8.

The clearest month of the year in Sierra Grande is January, during which on average the sky is clear, mostly clear, or partly cloudy 76% of the time.

The cloudier part of the year begins around April 8 and lasts for 6.2 months, ending around October 15.

The cloudiest month of the year in Sierra Grande is May, during which on average the sky is overcast or mostly cloudy 50% of the time.

Sierra Grande does not experience significant seasonal variation in the frequency of wet days (i.e., those with greater than 0.04 inches of liquid or liquid-equivalent precipitation). The frequency ranges from 7% to 13%, with an average value of 10%.

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 Sierra Grande is March, with an average of 3.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 13% on February 29.

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. Sierra Grande experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Sierra Grande. The month with the most rain in Sierra Grande is April, with an average rainfall of 1.1 inches.

The month with the least rain in Sierra Grande is December, with an average rainfall of 0.5 inches.

The length of the day in Sierra Grande varies significantly over the course of the year. In 2024, the shortest day is June 20, with 9 hours, 9 minutes of daylight; the longest day is December 21, with 15 hours, 12 minutes of daylight.

The earliest sunrise is at 5:40 AM on December 8, and the latest sunrise is 3 hours, 9 minutes later at 8:49 AM on June 27. The earliest sunset is at 5:57 PM on June 13, and the latest sunset is 3 hours, 2 minutes later at 8:58 PM on January 3.

Daylight saving time (DST) is not observed in Sierra Grande during 2024.

The 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.

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 Sierra Grande, 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.

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 Sierra Grande experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.4 months, from November 26 to March 8, with average wind speeds of more than 13.0 miles per hour. The windiest month of the year in Sierra Grande is January, with an average hourly wind speed of 13.4 miles per hour.

The calmer time of year lasts for 8.6 months, from March 8 to November 26. The calmest month of the year in Sierra Grande is October, with an average hourly wind speed of 12.7 miles per hour.

The predominant average hourly wind direction in Sierra Grande varies throughout the year.

The wind is most often from the west for 7.3 months, from March 24 to November 3, with a peak percentage of 51% on June 18. The wind is most often from the south for 4.7 months, from November 3 to March 24, with a peak percentage of 38% on January 1.

Sierra Grande 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 water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.1 months, from December 24 to March 29, with an average temperature above 62°F. The month of the year in Sierra Grande with the warmest water is February, with an average temperature of 65°F.

The time of year with cooler water lasts for 3.8 months, from June 27 to October 20, with an average temperature below 54°F. The month of the year in Sierra Grande with the coolest water is August, with an average temperature of 52°F.

To characterize how pleasant the weather is in Sierra Grande 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 Sierra Grande for general outdoor tourist activities is from early 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 Sierra Grande for hot-weather activities is from late December to early February, with a peak score in the second week of January.

Methodology

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 Sierra Grande typically lasts for 7.7 months (233 days), from around September 15 to around May 6, rarely starting before August 13 or after October 14, and rarely ending before April 6 or after June 8.

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 Sierra Grande should appear around August 31, only rarely appearing before August 18 or after September 16.

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 3.2 months, from November 5 to February 13, with an average daily incident shortwave energy per square meter above 7.2 kWh. The brightest month of the year in Sierra Grande is December, with an average of 8.4 kWh.

The darker period of the year lasts for 3.8 months, from April 26 to August 20, with an average daily incident shortwave energy per square meter below 3.1 kWh. The darkest month of the year in Sierra Grande is June, with an average of 1.8 kWh.

For the purposes of this report, the geographical coordinates of Sierra Grande are -41.606 deg latitude, -65.356 deg longitude, and 804 ft elevation.

The topography within 2 miles of Sierra Grande contains significant variations in elevation, with a maximum elevation change of 784 feet and an average elevation above sea level of 857 feet. Within 10 miles contains significant variations in elevation (1,280 feet). Within 50 miles contains very significant variations in elevation (2,762 feet).

The area within 2 miles of Sierra Grande is covered by bare soil (33%), trees (31%), and grassland (27%), within 10 miles by trees (39%) and grassland (29%), and within 50 miles by water (31%) and trees (27%).