Summer Weather in Ngozi Burundi

Daily high temperatures are around 77°F, rarely falling below 71°F or exceeding 83°F. The highest daily average high temperature is 78°F on January 29.

Daily low temperatures are around 60°F, rarely falling below 57°F or exceeding 63°F. The highest daily average low temperature is 60°F on January 2.

For reference, on September 10, the hottest day of the year, temperatures in Ngozi typically range from 60°F to 81°F, while on July 4, the coldest day of the year, they range from 57°F to 77°F.

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

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The summer in Ngozi experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 79% throughout the season.

The clearest day of the summer is December 12, with clear, mostly clear, or partly cloudy conditions 22% of the time.

For reference, on April 9, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 82%, while on July 27, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 64%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ngozi, the chance of a wet day over the course of the summer is very rapidly decreasing, starting the season at 64% and ending it at 52%.

For reference, the year's highest daily chance of a wet day is 64% on November 26, and its lowest chance is 3% on July 3.

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 summer in Ngozi is decreasing, starting the season at 4.7 inches, when it rarely exceeds 7.4 inches or falls below 1.9 inches, and ending the season at 4.1 inches, when it rarely exceeds 7.3 inches or falls below 1.7 inches.

The lowest average 31-day accumulation is 3.5 inches on January 29.

Over the course of the summer in Ngozi, the length of the day is essentially constant. The shortest day of the summer is February 28, with 12 hours, 10 minutes of daylight and the longest day is December 22, with 12 hours, 18 minutes of daylight.

The earliest sunrise of the summer in Ngozi is 5:41 AM on December 1 and the latest sunrise is 27 minutes later at 6:08 AM on February 17.

The earliest sunset is 5:58 PM on December 1 and the latest sunset is 23 minutes later at 6:21 PM on February 4.

Daylight saving time is not observed in Ngozi during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:50 AM and sets 12 hours, 18 minutes later, at 6:07 PM, while on June 20, the shortest day of the year, it rises at 6:03 AM and sets 11 hours, 57 minutes later, at 6:01 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 summer 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 Ngozi is essentially constant during the summer, remaining within 1% of 10% throughout.

For reference, on April 3, the muggiest day of the year, there are muggy conditions 14% of the time, while on July 28, 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 Ngozi is essentially constant during the summer, remaining within 0.3 miles per hour of 4.1 miles per hour throughout.

For reference, on August 10, the windiest day of the year, the daily average wind speed is 6.9 miles per hour, while on January 19, the calmest day of the year, the daily average wind speed is 3.8 miles per hour.

The lowest daily average wind speed during the summer is 3.8 miles per hour on January 19.

The hourly average wind direction in Ngozi throughout the summer is predominantly from the east, with a peak proportion of 54% on December 1.

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 Ngozi 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.

The average accumulated growing degree days in Ngozi are very rapidly increasing during the summer, increasing by 1,588°F, from 2,830°F to 4,417°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 Ngozi is gradually increasing during the summer, rising by 0.6 kWh, from 5.2 kWh to 5.9 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Ngozi are -2.908 deg latitude, 29.831 deg longitude, and 5,984 ft elevation.

The topography within 2 miles of Ngozi contains very significant variations in elevation, with a maximum elevation change of 955 feet and an average elevation above sea level of 5,546 feet. Within 10 miles contains very significant variations in elevation (2,195 feet). Within 50 miles contains large variations in elevation (7,034 feet).

The area within 2 miles of Ngozi is covered by cropland (70%) and grassland (21%), within 10 miles by cropland (84%), and within 50 miles by cropland (59%) and grassland (17%).