Summer Weather in Yunhe China

Daily high temperatures are around 86°F, rarely falling below 75°F or exceeding 95°F. The highest daily average high temperature is 89°F on July 30.

Daily low temperatures increase by 7°F, from 62°F to 69°F, rarely falling below 57°F or exceeding 80°F. The highest daily average low temperature is 75°F on July 29.

For reference, on July 29, the hottest day of the year, temperatures in Yunhe typically range from 75°F to 89°F, while on January 19, the coldest day of the year, they range from 27°F to 42°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.

Louisville, United States (7,186 miles away); Washington, D.C.; United States (7,290 miles); and Karaj, Iran (3,813 miles) are the far-away foreign places with temperatures most similar to Yunhe (view comparison).

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The summer in Yunhe experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 49% to 44%. The highest chance of overcast or mostly cloudy conditions is 60% on July 10.

The clearest day of the summer is August 31, with clear, mostly clear, or partly cloudy conditions 56% of the time.

For reference, on July 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 60%, while on October 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Yunhe, the chance of a wet day over the course of the summer is very rapidly increasing, starting the season at 20% and ending it at 32%.

For reference, the year's highest daily chance of a wet day is 47% on July 10, and its lowest chance is 8% on December 23.

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 Yunhe is rapidly increasing, starting the season at 3.1 inches, when it rarely exceeds 5.8 inches or falls below 1.0 inches, and ending the season at 4.8 inches, when it rarely exceeds 8.6 inches or falls below 1.6 inches.

The highest average 31-day accumulation is 8.0 inches on July 10.

Over the course of the summer in Yunhe, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 23 minutes, implying an average daily decrease of 54 seconds, and weekly decrease of 6 minutes, 21 seconds.

The shortest day of the summer is August 31, with 12 hours, 54 minutes of daylight and the longest day is June 20, with 14 hours, 26 minutes of daylight.

The earliest sunrise of the summer in Yunhe is 4:49 AM on June 12 and the latest sunrise is 45 minutes later at 5:33 AM on August 31.

The latest sunset is 7:16 PM on June 28 and the earliest sunset is 48 minutes earlier at 6:28 PM on August 31.

Daylight saving time is not observed in Yunhe during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:49 AM and sets 14 hours, 26 minutes later, at 7:15 PM, while on December 21, the shortest day of the year, it rises at 7:02 AM and sets 9 hours, 53 minutes later, at 4:55 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 Yunhe is very rapidly increasing during the summer, rising from 16% to 73% over the course of the season.

The highest chance of a muggy day during the summer is 98% on August 1.

For reference, on July 31, the muggiest day of the year, there are muggy conditions 98% of the time, while on November 21, 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 Yunhe is decreasing during the summer, decreasing from 9.0 miles per hour to 7.6 miles per hour over the course of the season.

For reference, on May 1, the windiest day of the year, the daily average wind speed is 9.9 miles per hour, while on August 29, the calmest day of the year, the daily average wind speed is 7.5 miles per hour.

The lowest daily average wind speed during the summer is 7.5 miles per hour on August 29.

The wind direction in Yunhe during the summer is predominantly out of the east from June 1 to July 4 and from July 28 to August 31 and the south from July 4 to July 28.

Yunhe is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Yunhe is very rapidly increasing during the summer, rising by 14°F, from 65°F to 79°F, over the course of the season.

The highest average surface water temperature during the summer is 80°F on August 11.

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 Yunhe typically lasts for 7.7 months (235 days), from around March 26 to around November 16, rarely starting before March 10 or after April 11, and rarely ending before October 30 or after December 3.

The summer in Yunhe 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 Yunhe are very rapidly increasing during the summer, increasing by 2,500°F, from 896°F to 3,397°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 Yunhe is decreasing during the summer, falling by 1.1 kWh, from 6.4 kWh to 5.3 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Yunhe are 34.083 deg latitude, 119.717 deg longitude, and 10 ft elevation.

The topography within 2 miles of Yunhe is essentially flat, with a maximum elevation change of 39 feet and an average elevation above sea level of 20 feet. Within 10 miles is also essentially flat (75 feet). Within 50 miles is essentially flat (2,067 feet).

The area within 2 miles of Yunhe is covered by cropland (73%) and artificial surfaces (27%), within 10 miles by cropland (71%) and artificial surfaces (26%), and within 50 miles by cropland (54%) and water (25%).