Modified method for evaluating weathering intensity using outdoor exposure tests on wood-based panels

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 2 Weather conditions and climate classifications for eight sites

Places	Groups	North latitude (°)	East longitude (°)	Annual average temperature^a (°C)	Annual precipitation^a (mm)	Annual sunlight hours^a (h)	Classification
Asahikawa	Northern Japan	43	142	7.3	992	1567	Low temp./low prec.
Morioka		39	141	10.6	1338	1672	Low temp./low prec.
Noshiro		40	140	11.6	1500	1454	Low temp./middle prec.
Tsukuba		36	140	14.4	1371	1974	Middle temp./low prec.
Okayama(N)	Southern Japan	35	133	14.0	1409	1581	Middle temp./low prec.
Okayama(S)		34	133	16.7	1069	2048	High temp./low prec.
Shizuoka		34	138	17.0	2342	2123	High temp./high prec.
Miyakonojo		31	131	16.9	2515	1963	High temp./high prec.