Fall Weather at Alejandro Velasco Astete International Airport Peru

Daily high temperatures are around 65°F, rarely falling below 59°F or exceeding 70°F. The highest daily average high temperature is 66°F on May 15.

Daily low temperatures decrease by 10°F, from 45°F to 36°F, rarely falling below 32°F or exceeding 48°F.

For reference, on November 2, the hottest day of the year, temperatures at Alejandro Velasco Astete International Airport typically range from 44°F to 67°F, while on July 8, the coldest day of the year, they range from 33°F to 65°F.

The figure below shows you a compact characterization of the hourly average fall 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.

Inverness, United States (4,859 miles away); La Ciudad, Mexico (3,443 miles); and Belfast, South Africa (6,544 miles) are the far-away foreign places with temperatures most similar to Alejandro Velasco Astete International Airport (view comparison).

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The fall at Alejandro Velasco Astete International Airport experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 93% to 62%.

The clearest day of the fall is May 31, with clear, mostly clear, or partly cloudy conditions 38% of the time.

For reference, on January 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 94%, while on July 23, 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. At Alejandro Velasco Astete International Airport, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 45% and ending it at 3%.

For reference, the year's highest daily chance of a wet day is 51% on January 15, and its lowest chance is 2% 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 fall at Alejandro Velasco Astete International Airport is very rapidly decreasing, starting the season at 3.3 inches, when it rarely exceeds 5.8 inches or falls below 1.2 inches, and ending the season at 0.1 inches, when it rarely exceeds 0.3 inches.

The lowest average 31-day accumulation is 0.1 inches on May 30.

Over the course of the fall at Alejandro Velasco Astete International Airport, the length of the day is decreasing. From the start to the end of the season, the length of the day decreases by 58 minutes, implying an average daily decrease of 38 seconds, and weekly decrease of 4 minutes, 28 seconds.

The shortest day of the fall is May 31, with 11 hours, 23 minutes of daylight and the longest day is March 1, with 12 hours, 21 minutes of daylight.

The earliest sunrise of the fall at Alejandro Velasco Astete International Airport is 5:49 AM on March 1 and the latest sunrise is 15 minutes later at 6:04 AM on May 31.

The latest sunset is 6:10 PM on March 1 and the earliest sunset is 43 minutes earlier at 5:26 PM on May 31.

Daylight saving time is not observed at Alejandro Velasco Astete International Airport during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:18 AM and sets 12 hours, 56 minutes later, at 6:14 PM, while on June 20, the shortest day of the year, it rises at 6:09 AM and sets 11 hours, 20 minutes later, at 5:29 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 fall 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 at Alejandro Velasco Astete International Airport is essentially constant during the fall, 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 at Alejandro Velasco Astete International Airport is essentially constant during the fall, remaining within 0.2 miles per hour of 4.8 miles per hour throughout.

For reference, on September 13, the windiest day of the year, the daily average wind speed is 6.2 miles per hour, while on April 22, the calmest day of the year, the daily average wind speed is 4.6 miles per hour.

The lowest daily average wind speed during the fall is 4.6 miles per hour on April 22.

The hourly average wind direction at Alejandro Velasco Astete International Airport throughout the fall is predominantly from the north, with a peak proportion of 75% on April 9.

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 at Alejandro Velasco Astete International Airport typically lasts for 9.9 months (301 days), from around August 12 to around June 9, rarely starting before July 12 or after September 4, and rarely ending before May 16 or after July 5.

The fall at Alejandro Velasco Astete International Airport is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly decreasing from 100% to 69% 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 at Alejandro Velasco Astete International Airport are increasing during the fall, increasing by 434°F, from 1,216°F to 1,650°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 at Alejandro Velasco Astete International Airport is essentially constant during the fall, remaining within 0.2 kWh of 5.2 kWh throughout.

The lowest average daily incident shortwave solar energy during the fall is 5.0 kWh on May 27.

For the purposes of this report, the geographical coordinates of Alejandro Velasco Astete International Airport are -13.536 deg latitude, -71.939 deg longitude, and 10,774 ft elevation.

The topography within 2 miles of Alejandro Velasco Astete International Airport contains very significant variations in elevation, with a maximum elevation change of 1,430 feet and an average elevation above sea level of 11,111 feet. Within 10 miles contains very significant variations in elevation (6,063 feet). Within 50 miles also contains extreme variations in elevation (18,294 feet).

The area within 2 miles of Alejandro Velasco Astete International Airport is covered by shrubs (48%) and artificial surfaces (39%), within 10 miles by grassland (43%) and shrubs (38%), and within 50 miles by grassland (43%) and shrubs (31%).