Summer Weather in Altay China

Daily high temperatures are around 77°F, rarely falling below 62°F or exceeding 91°F. The highest daily average high temperature is 82°F on July 23.

Daily low temperatures are around 55°F, rarely falling below 42°F or exceeding 67°F. The highest daily average low temperature is 60°F on July 21.

For reference, on July 22, the hottest day of the year, temperatures in Altay typically range from 60°F to 82°F, while on January 15, the coldest day of the year, they range from 1°F to 19°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.

Moose Jaw, Saskatchewan, Canada (5,606 miles away) and Grafton, North Dakota, United States (5,784 miles) are the far-away foreign places with temperatures most similar to Altay (view comparison).

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The summer in Altay experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 39% to 29%. The lowest chance of overcast or mostly cloudy conditions is 27% on August 8.

The clearest day of the summer is August 8, with clear, mostly clear, or partly cloudy conditions 73% of the time.

For reference, on January 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 50%, while on August 8, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Altay, the chance of a wet day over the course of the summer is essentially constant, remaining around 12% throughout.

For reference, the year's highest daily chance of a wet day is 14% on July 11, and its lowest chance is 4% on February 20.

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 Altay is essentially constant, remaining about 0.6 inches throughout, and rarely exceeding 1.4 inches or falling below 0.1 inches.

The highest average 31-day accumulation is 0.7 inches on July 14.

Over the course of the summer in Altay, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 2 hours, 20 minutes, implying an average daily decrease of 1 minute, 32 seconds, and weekly decrease of 10 minutes, 47 seconds.

The shortest day of the summer is August 31, with 13 hours, 26 minutes of daylight and the longest day is June 21, with 16 hours, 1 minute of daylight.

The earliest sunrise of the summer in Altay is 4:08 AM on June 16 and the latest sunrise is 1 hour, 16 minutes later at 5:24 AM on August 31.

The latest sunset is 8:10 PM on June 25 and the earliest sunset is 1 hour, 20 minutes earlier at 6:50 PM on August 31.

Daylight saving time is not observed in Altay during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:08 AM and sets 16 hours, 1 minute later, at 8:09 PM, while on December 21, the shortest day of the year, it rises at 7:53 AM and sets 8 hours, 23 minutes later, at 4:17 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 Altay is essentially constant during the summer, 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 Altay is decreasing during the summer, decreasing from 8.1 miles per hour to 7.0 miles per hour over the course of the season.

For reference, on May 12, the windiest day of the year, the daily average wind speed is 8.2 miles per hour, while on December 17, the calmest day of the year, the daily average wind speed is 5.4 miles per hour.

The hourly average wind direction in Altay throughout the summer is predominantly from the west, with a peak proportion of 57% on July 9.

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 Altay typically lasts for 4.8 months (149 days), from around May 5 to around September 30, rarely starting before April 15 or after May 24, and rarely ending before September 12 or after October 20.

The summer in Altay is reliably fully within the growing season.

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 Altay are very rapidly increasing during the summer, increasing by 1,629°F, from 348°F to 1,976°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 Altay is rapidly decreasing during the summer, falling by 1.6 kWh, from 7.4 kWh to 5.8 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 7.5 kWh on June 12.

For the purposes of this report, the geographical coordinates of Altay are 47.849 deg latitude, 88.134 deg longitude, and 2,841 ft elevation.

The topography within 2 miles of Altay contains very significant variations in elevation, with a maximum elevation change of 1,263 feet and an average elevation above sea level of 3,123 feet. Within 10 miles contains very significant variations in elevation (5,741 feet). Within 50 miles also contains extreme variations in elevation (11,253 feet).

The area within 2 miles of Altay is covered by grassland (64%) and artificial surfaces (22%), within 10 miles by grassland (66%) and trees (16%), and within 50 miles by grassland (57%) and trees (18%).