Summer Weather in Pachas Peru

Daily high temperatures are around 59°F, rarely falling below 54°F or exceeding 64°F.

Daily low temperatures are around 41°F, rarely falling below 38°F or exceeding 43°F. The highest daily average low temperature is 41°F on February 1.

For reference, on September 29, the hottest day of the year, temperatures in Pachas typically range from 40°F to 61°F, while on July 15, the coldest day of the year, they range from 35°F to 58°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.

Westhaven-Moonstone, United States (4,624 miles away); Papatowai, New Zealand (6,824 miles); and Waiouru, New Zealand (6,711 miles) are the far-away foreign places with temperatures most similar to Pachas (view comparison).

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The summer in Pachas experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 87% to 93%. The highest chance of overcast or mostly cloudy conditions is 93% on February 23.

The clearest day of the summer is December 1, with clear, mostly clear, or partly cloudy conditions 14% of the time.

For reference, on February 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 93%, while on July 29, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 57%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Pachas, the chance of a wet day over the course of the summer is increasing, starting the season at 35% and ending it at 40%.

For reference, the year's highest daily chance of a wet day is 41% on March 7, and its lowest chance is 5% on August 2.

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 Pachas is increasing, starting the season at 2.7 inches, when it rarely exceeds 5.5 inches or falls below 0.6 inches, and ending the season at 3.3 inches, when it rarely exceeds 7.0 inches or falls below 0.7 inches.

The highest average 31-day accumulation is 3.4 inches on February 23.

Over the course of the summer in Pachas, the length of the day is gradually decreasing. From the start to the end of the season, the length of the day decreases by 22 minutes, implying an average daily decrease of 15 seconds, and weekly decrease of 1 minute, 43 seconds.

The shortest day of the summer is February 28, with 12 hours, 17 minutes of daylight and the longest day is December 20, with 12 hours, 42 minutes of daylight.

The earliest sunrise of the summer in Pachas is 5:36 AM on December 1 and the latest sunrise is 34 minutes later at 6:10 AM on February 28.

The earliest sunset is 6:15 PM on December 1 and the latest sunset is 20 minutes later at 6:36 PM on January 26.

Daylight saving time is not observed in Pachas during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:44 AM and sets 12 hours, 42 minutes later, at 6:26 PM, while on June 20, the shortest day of the year, it rises at 6:22 AM and sets 11 hours, 33 minutes later, at 5:55 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 Pachas is essentially constant during the summer, remaining around 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 Pachas is essentially constant during the summer, remaining within 0.2 miles per hour of 5.7 miles per hour throughout.

For reference, on September 3, the windiest day of the year, the daily average wind speed is 7.7 miles per hour, while on January 4, the calmest day of the year, the daily average wind speed is 5.5 miles per hour.

The lowest daily average wind speed during the summer is 5.5 miles per hour on January 9.

The wind direction in Pachas during the summer is predominantly out of the east from December 1 to December 14 and from February 1 to February 28 and the north from December 14 to February 1.

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 Pachas typically lasts for 9.7 months (295 days), from around August 20 to around June 11, rarely starting before July 12 or after November 4, and rarely ending before May 12 or after July 11.

The summer in Pachas is very likely fully outside of the growing season, with the chance that a given day is in the growing season gradually increasing from 97% to 100% over the course of the 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.

The average accumulated growing degree days in Pachas are increasing during the summer, increasing by 182°F, from 347°F to 529°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 Pachas is essentially constant during the summer, remaining within 0.2 kWh of 5.5 kWh throughout.

For the purposes of this report, the geographical coordinates of Pachas are -9.707 deg latitude, -76.771 deg longitude, and 11,286 ft elevation.

The topography within 2 miles of Pachas contains extreme variations in elevation, with a maximum elevation change of 3,678 feet and an average elevation above sea level of 11,640 feet. Within 10 miles also contains extreme variations in elevation (5,033 feet). Within 50 miles also contains extreme variations in elevation (19,075 feet).

The area within 2 miles of Pachas is covered by shrubs (59%), grassland (23%), and cropland (14%), within 10 miles by grassland (51%) and shrubs (27%), and within 50 miles by grassland (39%) and shrubs (29%).