Summer Weather in Rivadavia Argentina

Daily high temperatures decrease by 5°F, from 98°F to 93°F, rarely falling below 85°F or exceeding 106°F. The highest daily average high temperature is 98°F on December 12.

Daily low temperatures are around 73°F, rarely falling below 64°F or exceeding 79°F. The highest daily average low temperature is 74°F on January 1.

For reference, on December 11, the hottest day of the year, temperatures in Rivadavia typically range from 73°F to 98°F, while on July 18, the coldest day of the year, they range from 52°F to 80°F.

The figure below shows you a compact characterization of the hourly average summer temperatures. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Plan de Ayala, Mexico (4,032 miles away) and Mount Isa, Australia (8,998 miles) are the far-away foreign places with temperatures most similar to Rivadavia (view comparison).

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The summer in Rivadavia experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 43% throughout the season. The highest chance of overcast or mostly cloudy conditions is 49% on January 11.

The clearest day of the summer is December 3, with clear, mostly clear, or partly cloudy conditions 63% of the time.

For reference, on January 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 49%, while on August 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 77%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Rivadavia, the chance of a wet day over the course of the summer is increasing, starting the season at 40% and ending it at 46%.

For reference, the year's highest daily chance of a wet day is 48% on January 10, and its lowest chance is 3% on July 20.

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the summer in Rivadavia is rapidly increasing, starting the season at 4.0 inches, when it rarely exceeds 7.0 inches or falls below 1.8 inches, and ending the season at 5.3 inches, when it rarely exceeds 8.6 inches or falls below 2.5 inches.

The highest average 31-day accumulation is 5.3 inches on January 12.

Over the course of the summer in Rivadavia, the length of the day is decreasing. From the start to the end of the season, the length of the day decreases by 57 minutes, implying an average daily decrease of 38 seconds, and weekly decrease of 4 minutes, 27 seconds.

The shortest day of the summer is February 28, with 12 hours, 35 minutes of daylight and the longest day is December 21, with 13 hours, 38 minutes of daylight.

The earliest sunrise of the summer in Rivadavia is 6:15 AM on December 1 and the latest sunrise is 51 minutes later at 7:06 AM on February 28.

The latest sunset is 8:04 PM on January 12 and the earliest sunset is 23 minutes earlier at 7:41 PM on February 28.

Daylight saving time is not observed in Rivadavia during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 6:20 AM and sets 13 hours, 38 minutes later, at 7:59 PM, while on June 20, the shortest day of the year, it rises at 7:54 AM and sets 10 hours, 38 minutes later, at 6:32 PM.

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.

The figure below presents a compact representation of key lunar data for the summer of 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

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 chance that a given day will be muggy in Rivadavia is very rapidly increasing during the summer, rising from 50% to 74% over the course of the season.

The highest chance of a muggy day during the summer is 75% on February 13.

For reference, on February 13, the muggiest day of the year, there are muggy conditions 75% of the time, while on July 21, the least muggy day of the year, there are muggy conditions 0% of the time.

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 Rivadavia is decreasing during the summer, decreasing from 8.9 miles per hour to 7.4 miles per hour over the course of the season.

For reference, on October 1, the windiest day of the year, the daily average wind speed is 9.9 miles per hour, while on March 16, the calmest day of the year, the daily average wind speed is 7.3 miles per hour.

The wind direction in Rivadavia during the summer is predominantly out of the east from December 1 to December 5 and the north from December 5 to February 28.

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).

Temperatures in Rivadavia are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

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.

The average accumulated growing degree days in Rivadavia are very rapidly increasing during the summer, increasing by 2,725°F, from 3,542°F to 6,268°F, over the course of the season.

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 in Rivadavia is gradually decreasing during the summer, falling by 1.0 kWh, from 7.5 kWh to 6.5 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 7.5 kWh on December 10.

For the purposes of this report, the geographical coordinates of Rivadavia are -24.188 deg latitude, -62.890 deg longitude, and 689 ft elevation.

The topography within 2 miles of Rivadavia is essentially flat, with a maximum elevation change of 46 feet and an average elevation above sea level of 684 feet. Within 10 miles is also essentially flat (75 feet). Within 50 miles is essentially flat (361 feet).

The area within 2 miles of Rivadavia is covered by shrubs (38%), trees (35%), cropland (14%), and grassland (13%), within 10 miles by trees (69%) and shrubs (25%), and within 50 miles by trees (79%) and shrubs (15%).