Climate and Average Weather Year Round in Jarash Jordan
In Jarash, the summers are long, hot, arid, and clear and the winters are cold and mostly clear. Over the course of the year, the temperature typically varies from 40°F to 89°F and is rarely below 34°F or above 95°F.
Based on the beach/pool score, the best time of year to visit Jarash for hot-weather activities is from mid June to late September.
Climate in Jarash
Average Temperature in Jarash
The hot season lasts for 4.4 months, from May 24 to October 6, with an average daily high temperature above 82°F. The hottest day of the year is August 3, with an average high of 89°F and low of 68°F.
The cool season lasts for 3.1 months, from December 4 to March 9, with an average daily high temperature below 61°F. The coldest day of the year is January 24, with an average low of 40°F and high of 54°F.
Average High and Low Temperature in Jarash
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.
Average Hourly Temperature in Jarash
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
Opelika, Alabama, United States (6,549 miles away); Georgetown, South Carolina, United States (6,252 miles); and Baiyun, China (4,905 miles) are the far-away foreign places with temperatures most similar to Jarash (view comparison).
In Jarash, 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 Jarash begins around May 23 and lasts for 4.7 months, ending around October 14. On June 28, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 100% of the time, and overcast or mostly cloudy 0% of the time.
The cloudier part of the year begins around October 14 and lasts for 7.3 months, ending around May 23. On December 12, the cloudiest day of the year, the sky is overcast or mostly cloudy 30% of the time, and clear, mostly clear, or partly cloudy 70% of the time.
Cloud Cover Categories in Jarash
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Jarash varies throughout the year.
The wetter season lasts 4.1 months, from November 24 to March 26, with a greater than 13% chance of a given day being a wet day. The chance of a wet day peaks at 26% on February 2.
The drier season lasts 7.9 months, from March 26 to November 24. The smallest chance of a wet day is 0% on July 3.
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 26% on February 2.
Daily Chance of Precipitation in Jarash
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. Jarash experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 5.4 months, from October 27 to April 10, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around February 1, with an average total accumulation of 2.0 inches.
The rainless period of the year lasts for 6.5 months, from April 10 to October 27. The least rain falls around July 9, with an average total accumulation of 0.0 inches.
Average Monthly Rainfall in Jarash
The length of the day in Jarash varies significantly over the course of the year. In 2021, the shortest day is December 21, with 10 hours, 2 minutes of daylight; the longest day is June 21, with 14 hours, 16 minutes of daylight.
Hours of Daylight and Twilight in Jarash
The earliest sunrise is at 5:29 AM on June 11, and the latest sunrise is 1 hour, 21 minutes later at 6:50 AM on October 28. The earliest sunset is at 4:31 PM on December 3, and the latest sunset is 3 hours, 16 minutes later at 7:47 PM on June 30.
Daylight saving time (DST) is observed in Jarash during 2021, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time in Jarash
The figure below presents a compact representation of key lunar data for 2021. 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.
Moon Rise, Set & Phases in Jarash
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.
Jarash experiences some seasonal variation in the perceived humidity.
The muggier period of the year lasts for 2.3 months, from July 12 to September 22, during which time the comfort level is muggy, oppressive, or miserable at least 4% of the time. The muggiest day of the year is August 18, with muggy conditions 15% of the time.
The least muggy day of the year is March 4, when muggy conditions are essentially unheard of.
Humidity Comfort Levels in Jarash
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Jarash experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.3 months, from May 23 to September 1, with average wind speeds of more than 7.0 miles per hour. The windiest day of the year is July 15, with an average hourly wind speed of 7.8 miles per hour.
The calmer time of year lasts for 8.7 months, from September 1 to May 23. The calmest day of the year is October 16, with an average hourly wind speed of 6.1 miles per hour.
Average Wind Speed in Jarash
The predominant average hourly wind direction in Jarash varies throughout the year.
The wind is most often from the west for 10 months, from January 6 to November 9, with a peak percentage of 90% on July 10. The wind is most often from the east for 1.9 months, from November 9 to January 6, with a peak percentage of 37% on January 1.
Wind Direction in Jarash
Best Time of Year to Visit
To characterize how pleasant the weather is in Jarash 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 times of year to visit Jarash for general outdoor tourist activities are from mid May to late July and from mid August to late October, with a peak score in the last week of September.
Tourism Score in Jarash
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 Jarash for hot-weather activities is from mid June to late September, with a peak score in the last week of July.
Beach/Pool Score in Jarash
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).
While it does not do so every year, freezing temperatures are seen in Jarash over some winters. The day least likely to be in the growing season is January 15, with a 58% chance.
Time Spent in Various Temperature Bands and the Growing Season in Jarash
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
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.
Based on growing degree days alone, the first spring blooms in Jarash should appear around February 20, only rarely appearing before February 5 or after March 16.
Growing Degree Days in Jarash
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 extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.6 months, from May 6 to August 25, with an average daily incident shortwave energy per square meter above 7.5 kWh. The brightest day of the year is June 24, with an average of 8.7 kWh.
The darker period of the year lasts for 3.2 months, from November 5 to February 12, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest day of the year is December 24, with an average of 3.0 kWh.
Average Daily Incident Shortwave Solar Energy in Jarash
For the purposes of this report, the geographical coordinates of Jarash are 32.281 deg latitude, 35.899 deg longitude, and 2,034 ft elevation.
The topography within 2 miles of Jarash contains very significant variations in elevation, with a maximum elevation change of 1,329 feet and an average elevation above sea level of 2,122 feet. Within 10 miles contains very significant variations in elevation (3,960 feet). Within 50 miles also contains extreme variations in elevation (6,129 feet).
The area within 2 miles of Jarash is covered by cropland (33%), sparse vegetation (32%), grassland (14%), and trees (11%), within 10 miles by cropland (42%) and sparse vegetation (24%), and within 50 miles by bare soil (36%) and cropland (27%).
This report illustrates the typical weather in Jarash, 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 are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Jarash.
For each station, the records are corrected for the elevation difference between that station and Jarash according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Jarash is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Jarash and a given station.
The stations contributing to this reconstruction are: Irbid (OJBD, 37%, 30 kilometers, north); King Hussein Air Base (OJMF, 29%, 35 kilometers, east); Amman Civil Airport (OJAM, 25%, 35 kilometers, south); and Jerusalem (OJJR, 9%, 79 kilometers, southwest).
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.
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 airports 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.
The 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.