Climate and Average Weather Year Round at Jungwon Air Base South Korea

At Jungwon Air Base, the summers are long, warm, muggy, wet, and partly cloudy and the winters are short, freezing, snowy, and mostly clear. Over the course of the year, the temperature typically varies from 17°F to 86°F and is rarely below 5°F or above 92°F.

Based on the tourism score, the best times of year to visit Jungwon Air Base for warm-weather activities are from late May to early July and from early August to late September.

The hot season lasts for 4.0 months, from May 21 to September 22, with an average daily high temperature above 76°F. The hottest month of the year at Jungwon Air Base is August, with an average high of 84°F and low of 69°F.

The cold season lasts for 2.9 months, from December 1 to February 27, with an average daily high temperature below 45°F. The coldest month of the year at Jungwon Air Base is January, with an average low of 17°F and high of 35°F.

At Jungwon Air Base, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year at Jungwon Air Base begins around September 9 and lasts for 5.9 months, ending around March 7.

The clearest month of the year at Jungwon Air Base is October, during which on average the sky is clear, mostly clear, or partly cloudy 68% of the time.

The cloudier part of the year begins around March 7 and lasts for 6.1 months, ending around September 9.

The cloudiest month of the year at Jungwon Air Base is July, during which on average the sky is overcast or mostly cloudy 55% of the time.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Jungwon Air Base varies significantly throughout the year.

The wetter season lasts 2.9 months, from June 14 to September 11, with a greater than 31% chance of a given day being a wet day. The month with the most wet days at Jungwon Air Base is July, with an average of 15.7 days with at least 0.04 inches of precipitation.

The drier season lasts 9.1 months, from September 11 to June 14. The month with the fewest wet days at Jungwon Air Base is January, with an average of 3.0 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone at Jungwon Air Base is July, with an average of 15.7 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 52% on July 25.

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Jungwon Air Base experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year at Jungwon Air Base. The month with the most rain at Jungwon Air Base is July, with an average rainfall of 10.7 inches.

The month with the least rain at Jungwon Air Base is January, with an average rainfall of 0.5 inches.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Jungwon Air Base experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 1.8 months, from December 21 to February 13, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow at Jungwon Air Base is January, with an average snowfall of 1.4 inches.

The snowless period of the year lasts for 10 months, from February 13 to December 21. The least snow falls around July 10, with an average total accumulation of 0.0 inches.

The length of the day at Jungwon Air Base varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 37 minutes of daylight; the longest day is June 21, with 14 hours, 43 minutes of daylight.

The earliest sunrise is at 5:08 AM on June 13, and the latest sunrise is 2 hours, 34 minutes later at 7:42 AM on January 7. The earliest sunset is at 5:11 PM on December 6, and the latest sunset is 2 hours, 41 minutes later at 7:52 PM on June 28.

Daylight saving time (DST) is not observed at Jungwon Air Base during 2024.

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

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.

Jungwon Air Base experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.1 months, from June 11 to September 15, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. The month with the most muggy days at Jungwon Air Base is July, with 26.1 days that are muggy or worse.

The least muggy day of the year is February 13, when muggy conditions are essentially unheard of.

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 at Jungwon Air Base experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.0 months, from November 19 to May 21, with average wind speeds of more than 7.3 miles per hour. The windiest month of the year at Jungwon Air Base is March, with an average hourly wind speed of 8.2 miles per hour.

The calmer time of year lasts for 6.0 months, from May 21 to November 19. The calmest month of the year at Jungwon Air Base is September, with an average hourly wind speed of 6.4 miles per hour.

The predominant average hourly wind direction at Jungwon Air Base varies throughout the year.

The wind is most often from the east for 1.9 months, from August 9 to October 7, with a peak percentage of 43% on September 13. The wind is most often from the west for 10 months, from October 7 to August 9, with a peak percentage of 55% on January 1.

Jungwon Air Base 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 water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.1 months, from July 5 to October 7, with an average temperature above 69°F. The month of the year at Jungwon Air Base with the warmest water is August, with an average temperature of 75°F.

The time of year with cooler water lasts for 3.7 months, from December 27 to April 18, with an average temperature below 48°F. The month of the year at Jungwon Air Base with the coolest water is February, with an average temperature of 42°F.

To characterize how pleasant the weather is at Jungwon Air Base throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best times of year to visit Jungwon Air Base for general outdoor tourist activities are from late May to early July and from early August to late September, with a peak score in the second week of June.

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Jungwon Air Base for hot-weather activities is from mid July to late August, with a peak score in the first week of August.

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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 at Jungwon Air Base typically lasts for 6.7 months (205 days), from around April 6 to around October 27, rarely starting before March 22 or after April 21, and rarely ending before October 12 or after November 12.

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.

Based on growing degree days alone, the first spring blooms at Jungwon Air Base should appear around April 11, only rarely appearing before April 1 or after April 19.

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 experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 3.6 months, from April 18 to August 6, with an average daily incident shortwave energy per square meter above 5.7 kWh. The brightest month of the year at Jungwon Air Base is June, with an average of 6.3 kWh.

The darker period of the year lasts for 3.0 months, from November 5 to February 4, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest month of the year at Jungwon Air Base is December, with an average of 2.4 kWh.

For the purposes of this report, the geographical coordinates of Jungwon Air Base are 37.030 deg latitude, 127.885 deg longitude, and 243 ft elevation.

The topography within 2 miles of Jungwon Air Base contains very significant variations in elevation, with a maximum elevation change of 892 feet and an average elevation above sea level of 279 feet. Within 10 miles contains very significant variations in elevation (2,592 feet). Within 50 miles contains large variations in elevation (5,151 feet).

The area within 2 miles of Jungwon Air Base is covered by sparse vegetation (29%), cropland (27%), trees (22%), and grassland (13%), within 10 miles by trees (54%) and cropland (19%), and within 50 miles by trees (56%) and sparse vegetation (16%).