Average Weather in Tulu Bolo Ethiopia

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2. Ethiopia
3. Oromiya
4. Tulu Bolo

In Tulu Bolo, the wet season is mostly cloudy, the dry season is partly cloudy, and it is comfortable year round. Over the course of the year, the temperature typically varies from 51°F to 78°F and is rarely below 46°F or above 83°F.

The warm season lasts for 3.8 months, from February 6 to June 1, with an average daily high temperature above 75°F. The hottest day of the year is March 13, with an average high of 78°F and low of 58°F.

The cool season lasts for 2.1 months, from June 30 to September 3, with an average daily high temperature below 69°F. The coldest day of the year is December 23, with an average low of 51°F and high of 73°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 Tulu Bolo, 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 Tulu Bolo begins around August 27 and lasts for 6.7 months, ending around March 18. On November 10, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 59% of the time, and overcast or mostly cloudy 41% of the time.

The cloudier part of the year begins around March 18 and lasts for 5.3 months, ending around August 27. On July 27, the cloudiest day of the year, the sky is overcast or mostly cloudy 78% of the time, and clear, mostly clear, or partly cloudy 22% 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 Tulu Bolo varies very significantly throughout the year.

The wetter season lasts 3.4 months, from June 9 to September 22, with a greater than 45% chance of a given day being a wet day. The chance of a wet day peaks at 87% on August 7.

The drier season lasts 8.6 months, from September 22 to June 9. The smallest chance of a wet day is 2% on December 27.

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 87% on August 7.

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. Tulu Bolo experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.0 months, from January 30 to November 1, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around August 3, with an average total accumulation of 8.0 inches.

The rainless period of the year lasts for 2.9 months, from November 1 to January 30. The least rain falls around December 3, with an average total accumulation of 0.1 inches.

The length of the day in Tulu Bolo does not vary substantially over the course of the year, staying within 37 minutes of 12 hours throughout. In 2017, the shortest day is December 21, with 11 hours, 37 minutes of daylight; the longest day is June 21, with 12 hours, 38 minutes of daylight.

The earliest sunrise is at 6:06 AM on May 27, and the latest sunrise is 41 minutes later at 6:47 AM on January 29. The earliest sunset is at 6:03 PM on November 14, and the latest sunset is 47 minutes later at 6:50 PM on July 14.

Daylight saving time (DST) is not observed in Tulu Bolo 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 Tulu Bolo, 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 Tulu Bolo experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 7.5 months, from October 2 to May 17, with average wind speeds of more than 3.5 miles per hour. The windiest day of the year is November 29, with an average hourly wind speed of 4.7 miles per hour.

The calmer time of year lasts for 4.5 months, from May 17 to October 2. The calmest day of the year is June 20, with an average hourly wind speed of 2.4 miles per hour.

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

The wind is most often from the west for 2.8 months, from June 10 to September 5, with a peak percentage of 75% on July 24. The wind is most often from the east for 9.2 months, from September 5 to June 10, with a peak percentage of 96% 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 2.8 months, from January 17 to April 11, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest day of the year is March 2, with an average of 7.2 kWh.

The darker period of the year lasts for 1.8 months, from June 24 to August 18, with an average daily incident shortwave energy per square meter below 5.2 kWh. The darkest day of the year is July 18, with an average of 4.6 kWh.

For the purposes of this report, the geographical coordinates of Tulu Bolo are 8.667 deg latitude, 38.217 deg longitude, and 7,156 ft elevation.

The topography within 2 miles of Tulu Bolo contains only modest variations in elevation, with a maximum elevation change of 423 feet and an average elevation above sea level of 7,136 feet. Within 10 miles contains only modest variations in elevation (2,523 feet). Within 50 miles contains large variations in elevation (8,278 feet).

The area within 2 miles of Tulu Bolo is covered by cropland (100%), within 10 miles by cropland (100%), and within 50 miles by cropland (85%).

This report illustrates the typical weather in Tulu Bolo, 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

There is only a single weather station, Addis Ababa Bole International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Tulu Bolo.

At a distance of 73 kilometers from Tulu Bolo, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Tulu Bolo according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

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.