Spring Weather in Bir el Ater Algeria

Daily high temperatures increase by 25°F, from 58°F to 82°F, rarely falling below 48°F or exceeding 91°F.

Daily low temperatures increase by 20°F, from 40°F to 60°F, rarely falling below 34°F or exceeding 67°F.

For reference, on July 17, the hottest day of the year, temperatures in Bir el Ater typically range from 69°F to 94°F, while on January 12, the coldest day of the year, they range from 36°F to 52°F.

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

Good Hope, United States (5,178 miles away); Charlotte, United States (4,844 miles); and Yangzhong, China (6,268 miles) are the far-away foreign places with temperatures most similar to Bir el Ater (view comparison).

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The spring in Bir el Ater experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 32% throughout the season. The highest chance of overcast or mostly cloudy conditions is 33% on May 21.

The clearest day of the spring is April 1, with clear, mostly clear, or partly cloudy conditions 70% of the time.

For reference, on October 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 40%, while on July 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 96%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Bir el Ater, the chance of a wet day over the course of the spring is essentially constant, remaining around 12% throughout.

For reference, the year's highest daily chance of a wet day is 15% on September 15, and its lowest chance is 3% on July 15.

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 spring in Bir el Ater is essentially constant, remaining about 0.8 inches throughout, and rarely exceeding 2.2 inches or falling below 0.1 inches.

The highest average 31-day accumulation is 0.9 inches on May 4.

Over the course of the spring in Bir el Ater, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 2 hours, 52 minutes, implying an average daily increase of 1 minute, 54 seconds, and weekly increase of 13 minutes, 15 seconds.

The shortest day of the spring is March 1, with 11 hours, 27 minutes of daylight and the longest day is May 31, with 14 hours, 20 minutes of daylight.

The latest sunrise of the spring in Bir el Ater is 6:56 AM on March 1 and the earliest sunrise is 1 hour, 41 minutes earlier at 5:15 AM on May 31.

The earliest sunset is 6:23 PM on March 1 and the latest sunset is 1 hour, 12 minutes later at 7:35 PM on May 31.

Daylight saving time is not observed in Bir el Ater during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:14 AM and sets 14 hours, 29 minutes later, at 7:44 PM, while on December 21, the shortest day of the year, it rises at 7:31 AM and sets 9 hours, 49 minutes later, at 5:20 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 spring 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 Bir el Ater is essentially constant during the spring, remaining around 0% throughout.

For reference, on August 24, the muggiest day of the year, there are muggy conditions 1% 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 Bir el Ater is essentially constant during the spring, remaining within 0.4 miles per hour of 9.4 miles per hour throughout.

For reference, on April 11, the windiest day of the year, the daily average wind speed is 9.8 miles per hour, while on August 8, the calmest day of the year, the daily average wind speed is 7.2 miles per hour.

The highest daily average wind speed during the spring is 9.8 miles per hour on April 11.

The wind direction in Bir el Ater during the spring is predominantly out of the north from March 1 to April 25 and the east from April 25 to May 31.

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 Bir el Ater typically lasts for 10 months (304 days), from around February 13 to around December 13, rarely starting after March 16, or ending before November 20.

The spring in Bir el Ater is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly increasing from 75% 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 Bir el Ater are very rapidly increasing during the spring, increasing by 957°F, from 77°F to 1,034°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 Bir el Ater is very rapidly increasing during the spring, rising by 2.8 kWh, from 4.8 kWh to 7.6 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Bir el Ater are 34.745 deg latitude, 8.060 deg longitude, and 2,917 ft elevation.

The topography within 2 miles of Bir el Ater contains significant variations in elevation, with a maximum elevation change of 564 feet and an average elevation above sea level of 2,893 feet. Within 10 miles contains significant variations in elevation (2,385 feet). Within 50 miles contains large variations in elevation (5,843 feet).

The area within 2 miles of Bir el Ater is covered by sparse vegetation (43%), bare soil (35%), and artificial surfaces (22%), within 10 miles by sparse vegetation (79%) and bare soil (19%), and within 50 miles by bare soil (45%) and sparse vegetation (27%).