Climate and Average Weather Year Round in Mendī Ethiopia

In Mendī, the wet season is overcast, the dry season is partly cloudy, and it is warm year round. Over the course of the year, the temperature typically varies from 56°F to 89°F and is rarely below 52°F or above 94°F.

Based on the tourism score, the best time of year to visit Mendī for warm-weather activities is from late October to mid February.

The hot season lasts for 2.7 months, from February 4 to April 25, with an average daily high temperature above 86°F. The hottest month of the year in Mendī is March, with an average high of 89°F and low of 63°F.

The cool season lasts for 3.8 months, from June 18 to October 11, with an average daily high temperature below 75°F. The coldest month of the year in Mendī is August, with an average low of 59°F and high of 72°F.

In Mendī, 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 Mendī begins around September 21 and lasts for 6.4 months, ending around April 3.

The clearest month of the year in Mendī is December, during which on average the sky is clear, mostly clear, or partly cloudy 58% of the time.

The cloudier part of the year begins around April 3 and lasts for 5.6 months, ending around September 21.

The cloudiest month of the year in Mendī is July, during which on average the sky is overcast or mostly cloudy 83% 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 Mendī varies very significantly throughout the year.

The wetter season lasts 5.8 months, from April 25 to October 20, with a greater than 43% chance of a given day being a wet day. The month with the most wet days in Mendī is August, with an average of 25.7 days with at least 0.04 inches of precipitation.

The drier season lasts 6.2 months, from October 20 to April 25. The month with the fewest wet days in Mendī is January, with an average of 1.0 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Mendī is August, with an average of 25.7 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 84% on August 23.

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. Mendī experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.6 months, from March 5 to November 22, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Mendī is August, with an average rainfall of 7.9 inches.

The rainless period of the year lasts for 3.5 months, from November 22 to March 5. The month with the least rain in Mendī is January, with an average rainfall of 0.2 inches.

The length of the day in Mendī does not vary substantially over the course of the year, staying within 41 minutes of 12 hours throughout. In 2024, the shortest day is December 21, with 11 hours, 33 minutes of daylight; the longest day is June 20, with 12 hours, 42 minutes of daylight.

The earliest sunrise is at 6:17 AM on May 29, and the latest sunrise is 44 minutes later at 7:01 AM on January 28. The earliest sunset is at 6:14 PM on November 16, and the latest sunset is 50 minutes later at 7:04 PM on July 11.

Daylight saving time (DST) is not observed in Mendī during 2024.

The figure below presents a compact representation of key lunar data for 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.

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 Mendī, 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, staying within 2% of 2% 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 Mendī experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.8 months, from December 31 to May 26, with average wind speeds of more than 4.8 miles per hour. The windiest month of the year in Mendī is April, with an average hourly wind speed of 5.6 miles per hour.

The calmer time of year lasts for 7.2 months, from May 26 to December 31. The calmest month of the year in Mendī is October, with an average hourly wind speed of 4.1 miles per hour.

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

The wind is most often from the north for 3.0 months, from January 9 to April 9, with a peak percentage of 49% on February 1. The wind is most often from the west for 5.9 months, from April 9 to October 7, with a peak percentage of 65% on August 11. The wind is most often from the east for 3.1 months, from October 7 to January 9, with a peak percentage of 47% on January 1.

To characterize how pleasant the weather is in Mendī throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Mendī for general outdoor tourist activities is from late October to mid February, with a peak score in the third week of December.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Mendī for hot-weather activities is from late January to mid April, with a peak score in the first week of March.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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).

Temperatures in Mendī are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

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.

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 2.5 months, from February 4 to April 19, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest month of the year in Mendī is March, with an average of 6.5 kWh.

The darker period of the year lasts for 2.8 months, from June 5 to August 30, with an average daily incident shortwave energy per square meter below 4.9 kWh. The darkest month of the year in Mendī is July, with an average of 4.5 kWh.

For the purposes of this report, the geographical coordinates of Mendī are 9.800 deg latitude, 35.100 deg longitude, and 5,463 ft elevation.

The topography within 2 miles of Mendī contains significant variations in elevation, with a maximum elevation change of 531 feet and an average elevation above sea level of 5,388 feet. Within 10 miles contains significant variations in elevation (1,942 feet). Within 50 miles contains very significant variations in elevation (6,329 feet).

The area within 2 miles of Mendī is covered by cropland (100%), within 10 miles by cropland (84%) and grassland (15%), and within 50 miles by grassland (44%) and cropland (29%).