July Weather in Yŏnan-ŭp North Korea

Daily high temperatures increase by 4°F, from 80°F to 84°F, rarely falling below 73°F or exceeding 90°F.

Daily low temperatures increase by 5°F, from 68°F to 73°F, rarely falling below 64°F or exceeding 77°F.

For reference, on August 3, the hottest day of the year, temperatures in Yŏnan-ŭp typically range from 73°F to 84°F, while on January 18, the coldest day of the year, they range from 18°F to 32°F.

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

Chicago, United States (6,536 miles away) is the far-away foreign place with temperatures most similar to Yŏnan-ŭp (view comparison).

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The month of July in Yŏnan-ŭp experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 51% throughout the month. The highest chance of overcast or mostly cloudy conditions is 53% on July 15.

The clearest day of the month is July 31, with clear, mostly clear, or partly cloudy conditions 50% of the time.

For reference, on July 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 53%, while on October 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 72%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Yŏnan-ŭp, the chance of a wet day over the course of July is increasing, starting the month at 42% and ending it at 48%.

For reference, the year's highest daily chance of a wet day is 52% on July 23, and its lowest chance is 6% on January 24.

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 July in Yŏnan-ŭp is very rapidly increasing, starting the month at 7.9 inches, when it rarely exceeds 12.9 inches or falls below 3.0 inches, and ending the month at 10.0 inches, when it rarely exceeds 16.4 inches or falls below 4.5 inches.

The highest average 31-day accumulation is 10.4 inches on July 22.

Over the course of July in Yŏnan-ŭp, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 37 minutes, implying an average daily decrease of 1 minute, 15 seconds, and weekly decrease of 8 minutes, 43 seconds.

The shortest day of the month is July 31, with 14 hours, 8 minutes of daylight and the longest day is July 1, with 14 hours, 45 minutes of daylight.

The earliest sunrise of the month in Yŏnan-ŭp is 5:16 AM on July 1 and the latest sunrise is 21 minutes later at 5:37 AM on July 31.

The latest sunset is 8:01 PM on July 1 and the earliest sunset is 16 minutes earlier at 7:45 PM on July 31.

Daylight saving time is not observed in Yŏnan-ŭp during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:13 AM and sets 14 hours, 48 minutes later, at 8:00 PM, while on December 21, the shortest day of the year, it rises at 7:47 AM and sets 9 hours, 32 minutes later, at 5:19 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 July 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 Yŏnan-ŭp is very rapidly increasing during July, rising from 56% to 91% over the course of the month.

For reference, on August 1, the muggiest day of the year, there are muggy conditions 92% of the time, while on January 1, 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 Yŏnan-ŭp is essentially constant during July, remaining within 0.3 miles per hour of 8.0 miles per hour throughout.

For reference, on January 18, the windiest day of the year, the daily average wind speed is 10.5 miles per hour, while on June 13, the calmest day of the year, the daily average wind speed is 7.3 miles per hour.

The highest daily average wind speed during July is 8.2 miles per hour on July 23.

The hourly average wind direction in Yŏnan-ŭp throughout July is predominantly from the south, with a peak proportion of 47% on July 22.

Yŏnan-ŭp 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 Yŏnan-ŭp is increasing during July, rising by 6°F, from 68°F to 74°F, over the course of the month.

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 Yŏnan-ŭp typically lasts for 7.4 months (228 days), from around March 27 to around November 10, rarely starting before March 11 or after April 12, and rarely ending before October 24 or after November 26.

The month of July in Yŏnan-ŭp 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 Yŏnan-ŭp are rapidly increasing during July, increasing by 764°F, from 1,221°F to 1,985°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 Yŏnan-ŭp is essentially constant during July, remaining within 0.2 kWh of 5.8 kWh throughout.

For the purposes of this report, the geographical coordinates of Yŏnan-ŭp are 37.909 deg latitude, 126.161 deg longitude, and 141 ft elevation.

The topography within 2 miles of Yŏnan-ŭp contains significant variations in elevation, with a maximum elevation change of 817 feet and an average elevation above sea level of 121 feet. Within 10 miles contains significant variations in elevation (1,142 feet). Within 50 miles contains very significant variations in elevation (3,291 feet).

The area within 2 miles of Yŏnan-ŭp is covered by cropland (43%), trees (34%), and grassland (21%), within 10 miles by cropland (36%) and trees (23%), and within 50 miles by water (35%) and cropland (22%).