Fall Weather in Barro Spain

Daily high temperatures decrease by 19°F, from 76°F to 56°F, rarely falling below 51°F or exceeding 86°F.

Daily low temperatures decrease by 14°F, from 59°F to 45°F, rarely falling below 38°F or exceeding 64°F.

For reference, on July 28, the hottest day of the year, temperatures in Barro typically range from 60°F to 78°F, while on January 23, the coldest day of the year, they range from 43°F to 54°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.

Melbourne, Australia (11,023 miles away) is the far-away foreign place with temperatures most similar to Barro (view comparison).

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The fall in Barro experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 34% to 57%.

The clearest day of the fall is September 1, with clear, mostly clear, or partly cloudy conditions 67% of the time.

For reference, on December 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 61%, while on July 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 81%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Barro, the chance of a wet day over the course of the fall is very rapidly increasing, starting the season at 16% and ending it at 39%.

For reference, the year's highest daily chance of a wet day is 43% on January 8, and its lowest chance is 9% on July 23.

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 in Barro is very rapidly increasing, starting the season at 1.7 inches, when it rarely exceeds 3.7 inches or falls below 0.3 inches, and ending the season at 5.6 inches, when it rarely exceeds 10.7 inches or falls below 1.4 inches.

Over the course of the fall in Barro, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 3 hours, 50 minutes, implying an average daily decrease of 2 minutes, 33 seconds, and weekly decrease of 17 minutes, 52 seconds.

The shortest day of the fall is November 30, with 9 hours, 19 minutes of daylight and the longest day is September 1, with 13 hours, 8 minutes of daylight.

The earliest sunrise of the fall in Barro is 7:59 AM on September 1 and the latest sunrise is 1 hour, 1 minute later at 9:01 AM on October 26.

The latest sunset is 9:08 PM on September 1 and the earliest sunset is 3 hours, 6 minutes earlier at 6:02 PM on November 30.

Daylight saving time (DST) starts at 2:00 AM on October 27, 2024, shifting sunrise and sunset to be an hour later.

For reference, on June 20, the longest day of the year, the Sun rises at 6:56 AM and sets 15 hours, 19 minutes later, at 10:15 PM, while on December 21, the shortest day of the year, it rises at 9:01 AM and sets 9 hours, 3 minutes later, at 6:04 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 in Barro is gradually decreasing during the fall, falling from 3% to 0% over the course of the season.

For reference, on August 11, the muggiest day of the year, there are muggy conditions 5% of the time, while on January 1, 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 Barro is gradually increasing during the fall, increasing from 5.3 miles per hour to 6.3 miles per hour over the course of the season.

For reference, on December 26, the windiest day of the year, the daily average wind speed is 6.7 miles per hour, while on September 12, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.

The lowest daily average wind speed during the fall is 5.2 miles per hour on September 12.

The wind direction in Barro during the fall is predominantly out of the north from September 1 to October 3 and the south from October 3 to November 30.

Barro 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 surface water temperature in Barro is decreasing during the fall, falling by 5°F, from 63°F to 58°F, over the course of the season.

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).

While it does not do so every year, freezing temperatures are seen in Barro over some winters. The day least likely to be in the growing season is January 16, with a 61% chance.

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 Barro are rapidly increasing during the fall, increasing by 842°F, from 2,162°F to 3,004°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 Barro is very rapidly decreasing during the fall, falling by 4.1 kWh, from 5.8 kWh to 1.6 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Barro are 42.555 deg latitude, -8.622 deg longitude, and 515 ft elevation.

The topography within 2 miles of Barro contains very significant variations in elevation, with a maximum elevation change of 1,555 feet and an average elevation above sea level of 454 feet. Within 10 miles contains very significant variations in elevation (2,631 feet). Within 50 miles contains large variations in elevation (4,652 feet).

The area within 2 miles of Barro is covered by trees (60%) and cropland (40%), within 10 miles by trees (54%) and cropland (31%), and within 50 miles by trees (34%) and water (28%).