March Weather in Hongch’ŏn South Korea

Daily high temperatures increase by 13°F, from 44°F to 57°F, rarely falling below 34°F or exceeding 67°F.

Daily low temperatures increase by 11°F, from 27°F to 38°F, rarely falling below 18°F or exceeding 46°F.

For reference, on August 3, the hottest day of the year, temperatures in Hongch’ŏn typically range from 71°F to 85°F, while on January 19, the coldest day of the year, they range from 16°F to 33°F.

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

North Peoria, United States (6,531 miles away) is the far-away foreign place with temperatures most similar to Hongch’ŏn (view comparison).

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Compare Hongch’ŏn to another city:

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The month of March in Hongch’ŏn experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 43% throughout the month.

The clearest day of the month is March 1, with clear, mostly clear, or partly cloudy conditions 59% of the time.

For reference, on July 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 56%, while on October 19, 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 Hongch’ŏn, the chance of a wet day over the course of March is gradually increasing, starting the month at 15% and ending it at 18%.

For reference, the year's highest daily chance of a wet day is 54% on July 21, and its lowest chance is 9% on December 26.

Over the course of March in Hongch’ŏn, the chance of a day with only rain increases from 12% to 18%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.

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 March in Hongch’ŏn is increasing, starting the month at 1.2 inches, when it rarely exceeds 2.3 inches or falls below 0.2 inches, and ending the month at 1.9 inches, when it rarely exceeds 3.7 inches or falls below 0.6 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during March in Hongch’ŏn is gradually decreasing, starting the month at 1.0 inches, when it rarely exceeds 3.4 inches or falls below -0.0 inches, and ending the month at 0.1 inches, when it rarely exceeds 0.5 inches or falls below -0.0 inches.

Over the course of March in Hongch’ŏn, 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, 13 minutes, implying an average daily increase of 2 minutes, 26 seconds, and weekly increase of 17 minutes, 0 seconds.

The shortest day of the month is March 1, with 11 hours, 22 minutes of daylight and the longest day is March 31, with 12 hours, 35 minutes of daylight.

The latest sunrise of the month in Hongch’ŏn is 6:59 AM on March 1 and the earliest sunrise is 45 minutes earlier at 6:15 AM on March 31.

The earliest sunset is 6:22 PM on March 1 and the latest sunset is 28 minutes later at 6:50 PM on March 31.

Daylight saving time is not observed in Hongch’ŏn during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:06 AM and sets 14 hours, 46 minutes later, at 7:53 PM, while on December 21, the shortest day of the year, it rises at 7:39 AM and sets 9 hours, 33 minutes later, at 5:13 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 March 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 Hongch’ŏn is essentially constant during March, remaining around 0% throughout.

For reference, on August 2, the muggiest day of the year, there are muggy conditions 87% of the time, while on October 29, 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 Hongch’ŏn is essentially constant during March, remaining within 0.1 miles per hour of 8.0 miles per hour throughout.

For reference, on April 20, the windiest day of the year, the daily average wind speed is 8.3 miles per hour, while on September 20, the calmest day of the year, the daily average wind speed is 6.0 miles per hour.

The hourly average wind direction in Hongch’ŏn throughout March is predominantly from the west, with a peak proportion of 57% on March 1.

Hongch’ŏn 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 Hongch’ŏn is gradually increasing during March, rising by 3°F, from 46°F to 49°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 Hongch’ŏn typically lasts for 6.9 months (213 days), from around April 1 to around October 31, rarely starting before March 16 or after April 17, and rarely ending before October 15 or after November 18.

The month of March in Hongch’ŏn is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 1% to 45% 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 Hongch’ŏn are essentially constant during March, remaining within 16°F of 18°F throughout.

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 Hongch’ŏn is increasing during March, rising by 1.1 kWh, from 4.1 kWh to 5.2 kWh, over the course of the month.