Average Weather in Deder Ethiopia

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In Deder, it is comfortable and partly cloudy year round. Over the course of the year, the temperature typically varies from 47°F to 78°F and is rarely below 43°F or above 83°F.

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.

In Deder, 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 in Deder begins around August 9 and lasts for 7.0 months, ending around March 10. On November 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 63% of the time, and overcast or mostly cloudy 37% of the time.

The cloudier part of the year begins around March 10 and lasts for 5.0 months, ending around August 9. On April 30, the cloudiest day of the year, the sky is overcast or mostly cloudy 66% of the time, and clear, mostly clear, or partly cloudy 34% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Deder varies very significantly throughout the year.

The wetter season lasts 5.4 months, from April 8 to September 19, with a greater than 38% chance of a given day being a wet day. The chance of a wet day peaks at 71% on August 5.

The drier season lasts 6.6 months, from September 19 to April 8. The smallest chance of a wet day is 3% on December 26.

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 71% on August 5.

Rainfall

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. Deder experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.9 months, from January 19 to November 17, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 15, with an average total accumulation of 5.5 inches.

The rainless period of the year lasts for 2.1 months, from November 17 to January 19. The least rain falls around December 21, with an average total accumulation of 0.3 inches.

The length of the day in Deder does not vary substantially over the course of the year, staying within 40 minutes of 12 hours throughout. In 2017, the shortest day is December 21, with 11 hours, 35 minutes of daylight; the longest day is June 21, with 12 hours, 40 minutes of daylight.

The earliest sunrise is at 5:53 AM on May 28, and the latest sunrise is 43 minutes later at 6:35 AM on January 28. The earliest sunset is at 5:49 PM on November 15, and the latest sunset is 49 minutes later at 6:38 PM on July 13.

Daylight saving time (DST) is not observed in Deder during 2017.

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 in Deder, 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.

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 Deder experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 3.3 months, from June 2 to September 12, with average wind speeds of more than 4.0 miles per hour. The windiest day of the year is July 6, with an average hourly wind speed of 5.4 miles per hour.

The calmer time of year lasts for 8.7 months, from September 12 to June 2. The calmest day of the year is November 17, with an average hourly wind speed of 2.6 miles per hour.

The predominant average hourly wind direction in Deder varies throughout the year.

The wind is most often from the south for 7.6 months, from February 20 to October 9, with a peak percentage of 93% on August 22. The wind is most often from the east for 3.1 weeks, from October 9 to October 31, with a peak percentage of 41% on October 18. The wind is most often from the north for 3.7 months, from October 31 to February 20, with a peak percentage of 52% 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 some seasonal variation over the course of the year.

The brighter period of the year lasts for 1.4 months, from February 8 to March 20, with an average daily incident shortwave energy per square meter above 6.9 kWh. The brightest day of the year is March 1, with an average of 7.1 kWh.

The darker period of the year lasts for 1.1 months, from July 8 to August 11, with an average daily incident shortwave energy per square meter below 6.2 kWh. The darkest day of the year is July 25, with an average of 5.9 kWh.

For the purposes of this report, the geographical coordinates of Deder are 9.312 deg latitude, 41.443 deg longitude, and 7,470 ft elevation.

The topography within 2 miles of Deder contains large variations in elevation, with a maximum elevation change of 2,579 feet and an average elevation above sea level of 7,556 feet. Within 10 miles contains large variations in elevation (5,190 feet). Within 50 miles also contains extreme variations in elevation (8,845 feet).

The area within 2 miles of Deder is covered by cropland (75%) and shrubs (25%), within 10 miles by cropland (74%) and shrubs (26%), and within 50 miles by cropland (40%) and shrubs (26%).

This report illustrates the typical weather in Deder, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Deder is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Deder, according to the International Standard Atmosphere .

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.

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.