May Weather in Bayan Mongolia

Daily high temperatures increase by 12°F, from 56°F to 68°F, rarely falling below 42°F or exceeding 79°F.

Daily low temperatures increase by 12°F, from 31°F to 42°F, rarely falling below 22°F or exceeding 51°F.

For reference, on July 15, the hottest day of the year, temperatures in Bayan typically range from 52°F to 76°F, while on January 18, the coldest day of the year, they range from -8°F to 11°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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.

Manning, Alberta, Canada (5,018 miles away) and Hudson Bay, Saskatchewan, Canada (5,467 miles) are the far-away foreign places with temperatures most similar to Bayan (view comparison).

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The month of May in Bayan experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 39% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 38% on May 15.

The clearest day of the month is May 15, with clear, mostly clear, or partly cloudy conditions 62% of the time.

For reference, on April 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 41%, while on September 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 70%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Bayan, the chance of a wet day over the course of May is gradually increasing, starting the month at 5% and ending it at 9%.

For reference, the year's highest daily chance of a wet day is 20% on July 3, and its lowest chance is 0% on February 16.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during May in Bayan is gradually increasing, starting the month at 0.2 inches, when it rarely exceeds 0.4 inches, and ending the month at 0.5 inches, when it rarely exceeds 0.9 inches or falls below 0.1 inches.

Over the course of May in Bayan, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 11 minutes, implying an average daily increase of 2 minutes, 21 seconds, and weekly increase of 16 minutes, 30 seconds.

The shortest day of the month is May 1, with 14 hours, 26 minutes of daylight and the longest day is May 31, with 15 hours, 37 minutes of daylight.

The latest sunrise of the month in Bayan is 5:23 AM on May 1 and the earliest sunrise is 35 minutes earlier at 4:48 AM on May 31.

The earliest sunset is 7:49 PM on May 1 and the latest sunset is 36 minutes later at 8:25 PM on May 31.

Daylight saving time is not observed in Bayan during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:43 AM and sets 15 hours, 54 minutes later, at 8:37 PM, while on December 21, the shortest day of the year, it rises at 8:22 AM and sets 8 hours, 31 minutes later, at 4:52 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 May 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 Bayan is essentially constant during May, remaining around 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 Bayan is gradually decreasing during May, decreasing from 10.4 miles per hour to 9.7 miles per hour over the course of the month.

For reference, on May 1, the windiest day of the year, the daily average wind speed is 10.4 miles per hour, while on January 25, the calmest day of the year, the daily average wind speed is 7.0 miles per hour.

The highest daily average wind speed during May is 10.4 miles per hour on May 1.

The hourly average wind direction in Bayan throughout May is predominantly from the north, with a peak proportion of 41% on May 31.

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).

The growing season in Bayan typically lasts for 3.4 months (103 days), from around May 27 to around September 7, rarely starting before May 9 or after June 13, and rarely ending before August 22 or after September 22.

During May in Bayan, the chance that a given day is within the growing season is very rapidly increasing rising from 2% to 62% over the course of the month.

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 Bayan are gradually increasing during May, increasing by 157°F, from 40°F to 196°F, over the course of the month.

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 Bayan is gradually increasing during May, rising by 0.7 kWh, from 6.9 kWh to 7.6 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Bayan are 46.993 deg latitude, 95.200 deg longitude, and 6,063 ft elevation.

The topography within 2 miles of Bayan contains significant variations in elevation, with a maximum elevation change of 554 feet and an average elevation above sea level of 6,054 feet. Within 10 miles contains significant variations in elevation (3,507 feet). Within 50 miles also contains extreme variations in elevation (8,510 feet).

The area within 2 miles of Bayan is covered by bare soil (100%), within 10 miles by bare soil (100%), and within 50 miles by bare soil (99%).