Change of Annual Average Temperature
Looking at the annual average temperature change in Seonbong,
Annual average temperature changes +0.37959°C/15yrs over the last 46 years (1973-2018)
Average annual Minimum temperature increase (+0.17372°C/15yrs) is smaller than annual Maximum temperature increase (+0.59809°C/15yrs).
In particular, the last 10 years (2009-2018) of the analysis period of 46 years, compared to the first 10 years (1973-1982), clearly show a marked increase in Maximum temperature.
Average temperature : +0.837°C
Maximum temperature : +1.7865°C
Minimum temperature : +0.2655°C
Average temperature : +0.41079°C
Maximum temperature : +1.17432°C
Minimum temperature : -0.2596°C
The annual average temperature in 2018 was 7.26753°C, the annual average Maximum temperature was 21.55°C, and the annual average Minimum temperature was -3.76667°C.
Change of Seasonal Temperature
The annual average temperature for the spring of 2018 was 6.1564°C,
the annual average temperature for the summer was 19.274°C,
the annual average temperature for the fall was 10.316°C
and the annual average temperature for the winter was -6.676°C.
Long-term trends in temperature rise are evident in all seasons.
Spring : +0.3197°C/15yrs
Summer : +0.39349°C/15yrs
Autumn : +0.35118°C/15yrs
Winter : +0.34485°C/15yrs
The greatest increase in Average, Maximum and Minimum temperatures in the last 10 years compared to the first 10-year Average temperature is showed in summer, with increases of +0.63936°C, +1.19412°C and +0.98139°C respectively.
Unit [℃]
(a) Spring
Unit [℃]
(b) Summer
Unit [℃]
(c) Autumn
Unit [℃]
(d) Winter
Unit [℃]
(a)~(d) is Change of Seasonal Average, Maximum, Minimum Temperature(1973-2018)
Change of Annual Precipitation
Annual precipitation increased to +52.3 mm/15years over the last 46 years (1973-2018).
Heavy rain days(1day’s accumulated precipitation≥ 80mm) increased to +0.23333days/15years.
Annual accumulated precipitation is 719.8mm and Heavy rain days are 0days in 2018
(In general, Heavy rain days are rarely in Seonbong).
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Unit [mm]
(a) Change of Annual Average (accumulated) Precipitation(mm)
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(b) Change of Annual frequency of the heavy rain days(days)
Change of Seasonal Precipitation
Seasonal precipitation in Seonbong increases in all seasons except winter and is the most increasing trend in summer.
Spring : +6.27149802mm/15yrs
Summer : +6.61201389mm/15yrs
Autumn : +3.26840278mm/15yrs
Winter : -0.5897222mm/15yrs
In 2018, seasonal precipitaton in Seonbong is 56.333mm in spring, 110.03mm in summer,
77.1mm in autumn, and 4.333mm in winter.
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Unit [mm]
(a) Spring
Unit [mm]
(b) Summer
Unit [mm]
(c) Autumn
Unit [mm]
(d) Winter
Unit [mm]
