Average Weather at Mecheria Airport Algeria
At Mecheria Airport, the summers are short, hot, arid, and mostly clear and the winters are long, cold, dry, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 37°F to 97°F and is rarely below 31°F or above 103°F.
The hot season lasts for 2.9 months, from June 13 to September 9, with an average daily high temperature above 88°F. The hottest day of the year is July 19, with an average high of 97°F and low of 73°F.
The cool season lasts for 3.9 months, from November 15 to March 11, with an average daily high temperature below 62°F. The coldest day of the year is January 12, with an average low of 37°F and high of 53°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
At Mecheria Airport, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year at Mecheria Airport begins around June 13 and lasts for 2.7 months, ending around September 5. On July 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 93% of the time, and overcast or mostly cloudy 7% of the time.
The cloudier part of the year begins around September 5 and lasts for 9.3 months, ending around June 13. On November 1, the cloudiest day of the year, the sky is overcast or mostly cloudy 42% of the time, and clear, mostly clear, or partly cloudy 58% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Mecheria Airport varies throughout the year.
The wetter season lasts 9.0 months, from August 27 to May 28, with a greater than 7% chance of a given day being a wet day. The chance of a wet day peaks at 12% on October 7.
The drier season lasts 3.0 months, from May 28 to August 27. The smallest chance of a wet day is 2% on July 17.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 12% on October 7.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Mecheria Airport experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 8.1 months, from September 15 to May 19, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around October 20, with an average total accumulation of 0.9 inches.
The rainless period of the year lasts for 3.9 months, from May 19 to September 15. The least rain falls around July 17, with an average total accumulation of 0.1 inches.
Average Monthly Rainfall
The length of the day at Mecheria Airport varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 56 minutes of daylight; the longest day is June 21, with 14 hours, 23 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:50 AM on June 12, and the latest sunrise is 2 hours, 16 minutes later at 8:05 AM on January 7. The earliest sunset is at 5:52 PM on December 4, and the latest sunset is 2 hours, 22 minutes later at 8:15 PM on June 29.
Daylight saving time (DST) is not observed at Mecheria Airport during 2017.
Sunrise & Sunset with Twilight
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 perceived humidity level at Mecheria Airport, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
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 Mecheria Airport experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 4.7 months, from January 26 to June 16, with average wind speeds of more than 5.1 miles per hour. The windiest day of the year is April 12, with an average hourly wind speed of 5.7 miles per hour.
The calmer time of year lasts for 7.3 months, from June 16 to January 26. The calmest day of the year is August 27, with an average hourly wind speed of 4.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction at Mecheria Airport varies throughout the year.
The wind is most often from the north for 6.9 months, from February 23 to September 19, with a peak percentage of 41% on June 7. The wind is most often from the south for 1.7 months, from September 19 to November 11, with a peak percentage of 35% on October 31. The wind is most often from the west for 3.4 months, from November 11 to February 23, with a peak percentage of 35% on January 1.
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 experiences significant seasonal variation over the course of the year.
The brighter period of the year lasts for 4.1 months, from April 18 to August 21, with an average daily incident shortwave energy per square meter above 7.0 kWh. The brightest day of the year is June 21, with an average of 8.1 kWh.
The darker period of the year lasts for 3.2 months, from November 1 to February 6, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest day of the year is December 18, with an average of 3.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Mecheria Airport are 33.536 deg latitude, -0.242 deg longitude, and 3,638 ft elevation.
The topography within 2 miles of Mecheria Airport contains only modest variations in elevation, with a maximum elevation change of 197 feet and an average elevation above sea level of 3,656 feet. Within 10 miles contains only modest variations in elevation (2,178 feet). Within 50 miles contains large variations in elevation (4,140 feet).
The area within 2 miles of Mecheria Airport is covered by bare soil (62%), sparse vegetation (28%), and artificial surfaces (10%), within 10 miles by bare soil (83%) and sparse vegetation (15%), and within 50 miles by bare soil (88%) and sparse vegetation (11%).
This report illustrates the typical weather at Mecheria Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
Mecheria Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
In this case, the only station close and reliable enough to use as a fallback is El-Bayadh.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.