Climate and Average Weather Year Round in Iriba ChadIn Iriba, the summers are sweltering and partly cloudy; the winters are short, comfortable, windy, and mostly clear; and it is dry year round. Over the course of the year, the temperature typically varies from 48°F to 100°F and is rarely below 41°F or above 104°F. Based on the beach/pool score, the best times of year to visit Iriba for hot-weather activities are from mid March to late July and from mid August to late October. Average Temperature in IribaThe hot season lasts for 3.0 months, from April 6 to July 5, with an average daily high temperature above 96°F. The hottest month of the year in Iriba is June, with an average high of 99°F and low of 72°F. The cool season lasts for 2.1 months, from November 28 to February 3, with an average daily high temperature below 84°F. The coldest month of the year in Iriba is January, with an average low of 49°F and high of 81°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. Badiraguato, Mexico (8,060 miles away); Plan de Ayala, Mexico (7,683 miles); and Mount Isa, Australia (8,326 miles) are the far-away foreign places with temperatures most similar to Iriba (view comparison). CloudsIn Iriba, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. The clearer part of the year in Iriba begins around September 20 and lasts for 9.2 months, ending around June 26. The clearest month of the year in Iriba is January, during which on average the sky is clear, mostly clear, or partly cloudy 71% of the time. The cloudier part of the year begins around June 26 and lasts for 2.8 months, ending around September 20. The cloudiest month of the year in Iriba is August, during which on average the sky is overcast or mostly cloudy 44% of the time.
PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Iriba varies significantly throughout the year. The wetter season lasts 1.7 months, from July 13 to September 4, with a greater than 23% chance of a given day being a wet day. The month with the most wet days in Iriba is August, with an average of 11.9 days with at least 0.04 inches of precipitation. The drier season lasts 10 months, from September 4 to July 13. The month with the fewest wet days in Iriba is January, with an average of 0.0 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 Iriba is August, with an average of 11.9 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 45% on August 11.
RainfallTo 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. Iriba experiences significant seasonal variation in monthly rainfall. The rainy period of the year lasts for 3.2 months, from June 19 to September 24, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Iriba is August, with an average rainfall of 2.8 inches. The rainless period of the year lasts for 8.8 months, from September 24 to June 19. The month with the least rain in Iriba is December, with an average rainfall of 0.0 inches.
SunThe length of the day in Iriba varies over the course of the year. In 2024, the shortest day is December 21, with 11 hours, 14 minutes of daylight; the longest day is June 20, with 13 hours, 2 minutes of daylight.
The earliest sunrise is at 4:59 AM on June 2, and the latest sunrise is 1 hour, 1 minute later at 6:00 AM on January 22. The earliest sunset is at 4:58 PM on November 21, and the latest sunset is 1 hour, 7 minutes later at 6:05 PM on July 7. Daylight saving time (DST) is not observed in Iriba during 2024. 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. MoonThe 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. HumidityWe 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. Iriba experiences significant seasonal variation in the perceived humidity. The muggier period of the year lasts for 2.2 months, from July 9 to September 14, during which time the comfort level is muggy, oppressive, or miserable at least 9% of the time. The month with the most muggy days in Iriba is August, with 9.9 days that are muggy or worse. The least muggy day of the year is February 15, when muggy conditions are essentially unheard of.
WindThis 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 Iriba experiences significant seasonal variation over the course of the year. The windier part of the year lasts for 7.7 months, from October 6 to May 28, with average wind speeds of more than 10.1 miles per hour. The windiest month of the year in Iriba is January, with an average hourly wind speed of 13.4 miles per hour. The calmer time of year lasts for 4.3 months, from May 28 to October 6. The calmest month of the year in Iriba is August, with an average hourly wind speed of 7.1 miles per hour.
The predominant average hourly wind direction in Iriba varies throughout the year. The wind is most often from the west for 2.1 months, from June 28 to September 1, with a peak percentage of 61% on July 27. The wind is most often from the east for 9.9 months, from September 1 to June 28, with a peak percentage of 90% on January 1. Best Time of Year to VisitTo characterize how pleasant the weather is in Iriba 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 Iriba for general outdoor tourist activities is from mid October to early March, with a peak score in the second week of November. Tourism Score in IribaThe beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best times of year to visit Iriba for hot-weather activities are from mid March to late July and from mid August to late October, with a peak score in the first week of October. Beach/Pool Score in IribaMethodologyFor 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. Growing SeasonDefinitions 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 Iriba 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. Solar EnergyThis 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 3.4 months, from March 14 to June 27, with an average daily incident shortwave energy per square meter above 7.4 kWh. The brightest month of the year in Iriba is April, with an average of 7.8 kWh. The darker period of the year lasts for 2.1 months, from November 18 to January 21, with an average daily incident shortwave energy per square meter below 6.3 kWh. The darkest month of the year in Iriba is December, with an average of 5.9 kWh.
TopographyFor the purposes of this report, the geographical coordinates of Iriba are 15.117 deg latitude, 22.250 deg longitude, and 3,058 ft elevation. The topography within 2 miles of Iriba contains only modest variations in elevation, with a maximum elevation change of 161 feet and an average elevation above sea level of 3,045 feet. Within 10 miles contains only modest variations in elevation (495 feet). Within 50 miles contains significant variations in elevation (2,352 feet). The area within 2 miles of Iriba is covered by grassland (76%) and bare soil (15%), within 10 miles by grassland (75%) and bare soil (17%), and within 50 miles by grassland (61%) and bare soil (32%). Data SourcesThis report illustrates the typical weather in Iriba, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Iriba 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 Iriba, 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 Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Please review our full terms contained on our Terms of Service page. |