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Spring Weather in Seoseok South Korea

Daily high temperatures increase by 32°F, from 41°F to 73°F, rarely falling below 32°F or exceeding 81°F.

Daily low temperatures increase by 31°F, from 24°F to 55°F, rarely falling below 14°F or exceeding 61°F.

For reference, on August 3, the hottest day of the year, temperatures in Seoseok typically range from 68°F to 82°F, while on January 19, the coldest day of the year, they range from 13°F to 30°F.

Average High and Low Temperature in the Spring in Seoseok

Average High and Low Temperature in the Spring in SeoseokMarAprMay0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FWinterSummerMar 141°FMar 141°F24°F24°FMay 3173°FMay 3173°F55°F55°FApr 154°FApr 154°F35°F35°FMay 166°FMay 166°F46°F46°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average spring 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.

Average Hourly Temperature in the Spring in Seoseok

Average Hourly Temperature in the Spring in SeoseokMarAprMay12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMWinterSummerNowNowfreezingvery coldcoldcoolcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Mundelein, Illinois, United States (6,468 miles away) is the far-away foreign place with temperatures most similar to Seoseok (view comparison).

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The spring in Seoseok experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 45% throughout the season.

The clearest day of the spring is March 1, with clear, mostly clear, or partly cloudy conditions 58% of the time.

For reference, on July 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 57%, while on October 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.

Cloud Cover Categories in the Spring in Seoseok

Cloud Cover Categories in the Spring in SeoseokMarAprMay0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerMar 158%Mar 158%May 3155%May 3155%Apr 155%Apr 155%May 151%May 151%NowNowclearmostly clearpartly cloudyovercastmostly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Seoseok, the chance of a wet day over the course of the spring is rapidly increasing, starting the season at 14% and ending it at 22%.

For reference, the year's highest daily chance of a wet day is 53% on July 24, and its lowest chance is 10% on December 26.

Over the course of the spring in Seoseok, the chance of a day with only rain increases from 8% to 22%, the chance of a day with mixed snow and rain decreases from 4% to 0%, and the chance of a day with only snow remains an essentially constant 1% throughout.

Probability of Precipitation in the Spring in Seoseok

Probability of Precipitation in the Spring in SeoseokMarAprMay0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%WinterSummerMar 114%Mar 114%May 3122%May 3122%Apr 119%Apr 119%May 126%May 126%NowNowsnowrainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

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 spring in Seoseok is very rapidly increasing, starting the season at 1.1 inches, when it rarely exceeds 2.0 inches or falls below 0.1 inches, and ending the season at 3.4 inches, when it rarely exceeds 6.1 inches or falls below 1.1 inches.

Average Monthly Rainfall in the Spring in Seoseok

Average Monthly Rainfall in the Spring in SeoseokMarAprMay0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 in16 in16 inWinterSummerMar 11.1 inMar 11.1 inMay 313.4 inMay 313.4 inApr 12.0 inApr 12.0 inMay 13.2 inMay 13.2 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

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 the spring in Seoseok is decreasing, starting the season at 2.7 inches, when it rarely exceeds 7.7 inches, and ending the season at -0.0 inches, when it rarely exceeds -0.0 inches or falls below -0.0 inches.

Average Monthly Snowfall in the Spring in Seoseok

Average Monthly Snowfall in the Spring in SeoseokMarAprMay0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 inWinterSummerMar 12.7 inMar 12.7 inMay 31-0.0 inMay 31-0.0 inApr 10.5 inApr 10.5 inMay 10.0 inMay 10.0 in
The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Over the course of the spring in Seoseok, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 3 hours, 13 minutes, implying an average daily increase of 2 minutes, 7 seconds, and weekly increase of 14 minutes, 51 seconds.

The shortest day of the spring is March 1, with 11 hours, 22 minutes of daylight and the longest day is May 31, with 14 hours, 35 minutes of daylight.

Hours of Daylight and Twilight in the Spring in Seoseok

Hours of Daylight and Twilight in the Spring in SeoseokMarAprMay0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrWinterSummerMar 2012 hr, 8 minMar 2012 hr, 8 minnightnightdaydayMay 3114 hr, 35 minMay 3114 hr, 35 minMay 113 hr, 46 minMay 113 hr, 46 minNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The latest sunrise of the spring in Seoseok is 6:58 AM on March 1 and the earliest sunrise is 1 hour, 51 minutes earlier at 5:07 AM on May 31.

The earliest sunset is 6:20 PM on March 1 and the latest sunset is 1 hour, 22 minutes later at 7:42 PM on May 31.

Daylight saving time is not observed in Seoseok during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:05 AM and sets 14 hours, 47 minutes later, at 7:52 PM, while on December 21, the shortest day of the year, it rises at 7:38 AM and sets 9 hours, 33 minutes later, at 5:12 PM.

Sunrise & Sunset with Twilight in the Spring in Seoseok

Sunrise & Sunset with Twilight in the Spring in SeoseokMarAprMay2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMWinterSummer5:07 AM5:07 AMMay 317:42 PMMay 317:42 PM6:58 AM6:58 AMMar 16:20 PMMar 16:20 PM6:12 AM6:12 AMApr 16:50 PMApr 16:50 PM5:31 AM5:31 AMMay 17:17 PMMay 17:17 PMSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day in the spring. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

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.

Solar Elevation and Azimuth in the Spring in Seoseok

Solar Elevation and Azimuth in the Spring in SeoseokMarAprMay12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMWinterSummer0010202030304050506000101020303040506070NowNow
northeastsouthwest
Solar elevation and azimuth in the the spring of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the spring 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.

Moon Rise, Set & Phases in the Spring in Seoseok

Moon Rise, Set & Phases in the Spring in SeoseokMarAprMay12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMWinterSummerFeb 108:00 AMFeb 108:00 AMFeb 249:31 PMFeb 249:31 PMMar 106:01 PMMar 106:01 PMMar 254:01 PMMar 254:01 PMApr 93:22 AMApr 93:22 AMApr 248:50 AMApr 248:50 AMMay 812:23 PMMay 812:23 PMMay 2310:54 PMMay 2310:54 PMJun 69:38 PMJun 69:38 PMJun 2210:09 AMJun 2210:09 AM7:47 AM7:47 AM6:19 PM6:19 PM5:57 PM5:57 PM7:35 AM7:35 AM6:46 AM6:46 AM6:23 PM6:23 PM6:44 PM6:44 PM6:43 AM6:43 AM6:06 AM6:06 AM7:42 PM7:42 PM6:34 PM6:34 PM5:33 AM5:33 AM5:04 AM5:04 AM7:47 PM7:47 PM7:34 PM7:34 PM5:08 AM5:08 AM7:52 PM7:52 PM7:31 PM7:31 PM4:37 AM4:37 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 Seoseok is essentially constant during the spring, remaining within 1% of 1% throughout.

For reference, on August 2, the muggiest day of the year, there are muggy conditions 84% of the time, while on October 29, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Spring in Seoseok

Humidity Comfort Levels in the Spring in SeoseokMarAprMay0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%WinterSummerMar 10%Mar 10%May 312%May 312%Apr 10%Apr 10%May 10%May 10%humidhumiddrydrymuggymuggy
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Seoseok is decreasing during the spring, decreasing from 8.6 miles per hour to 6.8 miles per hour over the course of the season.

For reference, on April 20, the windiest day of the year, the daily average wind speed is 8.7 miles per hour, while on September 18, the calmest day of the year, the daily average wind speed is 6.3 miles per hour.

The highest daily average wind speed during the spring is 8.7 miles per hour on April 20.

Average Wind Speed in the Spring in Seoseok

Average Wind Speed in the Spring in SeoseokMarAprMay0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphWinterSummerApr 208.7 mphApr 208.7 mphMar 18.6 mphMar 18.6 mphMay 316.8 mphMay 316.8 mphApr 18.4 mphApr 18.4 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Seoseok throughout the spring is predominantly from the west, with a peak proportion of 61% on March 1.

Wind Direction in the Spring in Seoseok

Wind Direction in the Spring in SeoseokMarAprMay0%100%20%80%40%60%60%40%80%20%100%0%WinterSummerNowNowwesteastsouthnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Seoseok 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 Seoseok is very rapidly increasing during the spring, rising by 14°F, from 46°F to 61°F, over the course of the season.

Average Water Temperature in the Spring in Seoseok

Average Water Temperature in the Spring in SeoseokMarAprMay40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°FWinterSummerMar 146°FMar 146°FMay 3161°FMay 3161°FApr 149°FApr 149°FMay 154°FMay 154°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Seoseok typically lasts for 6.4 months (196 days), from around April 10 to around October 23, rarely starting before March 25 or after April 27, and rarely ending before October 6 or after November 9.

During the spring in Seoseok, the chance that a given day is within the growing season is very rapidly increasing rising from 0% to 100% over the course of the season.

Time Spent in Various Temperature Bands and the Growing Season in the Spring in Seoseok

Time Spent in Various Temperature Bands and the Growing Season in the Spring in Seoseokgrowing seasonMarAprMay0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%WinterSummerMar 10%Mar 10%100%May 31100%May 31Apr 124%Apr 124%95%May 195%May 1May 22100%May 22100%NowNowfrigidfreezingvery coldcoldcoolcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is 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 Seoseok are rapidly increasing during the spring, increasing by 451°F, from 1°F to 452°F, over the course of the season.

Growing Degree Days in the Spring in Seoseok

Growing Degree Days in the Spring in SeoseokMarAprMay100°F100°F200°F200°F300°F300°F400°F400°F500°F500°FWinterSummerMar 11°FMar 11°FMay 31452°FMay 31452°FApr 123°FApr 123°FMay 1149°FMay 1149°F
The average growing degree days accumulated over the course of the spring, with 25th to 75th and 10th to 90th percentile bands.

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 Seoseok is very rapidly increasing during the spring, rising by 2.4 kWh, from 4.1 kWh to 6.6 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Spring in Seoseok

Average Daily Incident Shortwave Solar Energy in the Spring in SeoseokMarAprMay0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhWinterSummerMar 14.1 kWhMar 14.1 kWhMay 316.6 kWhMay 316.6 kWhApr 15.2 kWhApr 15.2 kWhMay 16.0 kWhMay 16.0 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Seoseok are 37.712 deg latitude, 128.187 deg longitude, and 1,066 ft elevation.

The topography within 2 miles of Seoseok contains very significant variations in elevation, with a maximum elevation change of 1,627 feet and an average elevation above sea level of 1,354 feet. Within 10 miles contains very significant variations in elevation (3,691 feet). Within 50 miles also contains extreme variations in elevation (5,597 feet).

The area within 2 miles of Seoseok is covered by trees (58%), sparse vegetation (23%), and cropland (10%), within 10 miles by trees (83%), and within 50 miles by trees (63%) and grassland (11%).

This report illustrates the typical weather in Seoseok, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Seoseok.

For each station, the records are corrected for the elevation difference between that station and Seoseok according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Seoseok is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Seoseok and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Seoseok and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

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