Table 3. 20-year average climate of Incheon coastal area(1997~2017)

Location		Average temperature for the year(°C)	Average temperature for January(°C)	Yearly minimum temperature(°C)	Warmth index(WI)	Coldness index(CI)	Annual precipitation (mm)
Incheon	Gongchon-dong	12.5	−2.5	−5.4	108.13	−17.64	1,357.9
	Yeongjong-do	11.7	−2.9	−5.2	98,89	−19.03	1.271.1
	Sangdo	12,3	−1.6	−3.6	103.60	−15.91	1,220.1
	Namdong complex	12.7	−1.7	−4.4	108.46	−15.98	1.230.3
Siheung	Get-Gol AWS	12.7	−2.0	−13.9	109.03	−16.10	1,186.6

Data : http://sts.kma.go.kr