Table 1. The climatic factors of Mt. Bulgok. Data from Seoul Meteorological Station (Recent 30 years; 1981～2010)

	J	F	M	A	M	J	J	A	S	O	N	D	Mean
Maximum air temp.(°C)	1.5	4.7	10.4	17.8	23	27.1	28.6	29.6	25.8	19.8	11.6	4.3	17.0
Mean air temp.(°C)	－2.4	0.4	5.7	12.5	17.8	22.2	24.9	25.7	21.2	14.8	7.2	0.4	12.5
Minimum air temp.(°C)	－5.9	－3.4	1.6	7.8	13.2	18.2	21.9	22.4	17.2	10.3	3.2	－3.2	8.6
Precipitation(mm)	20.8	25	47.2	64.5	105.9	133.2	394.7	364.2	169.3	51.8	52.5	21.5	1,450.6
Evaporation(mm)	37.5	46.6	82.8	123	141.4	139.2	110.8	123.3	107.3	89.3	53.2	39.4	1,093.8
Duration of sunshine(hr)	160.3	163.3	189	205	213	182	120	152.5	176.2	198.8	153.2	152.6	172.2