World Weather & Climate Information. Average monthly weather in Tokyo, Japan. The former city of Tokyo and the majority of mainland Tokyo lie in the humid subtropical climate zone with hot humid summers and generally mild winters with cool spells. Annual rainfall averages nearly 1,530 millimetres (60.2 in), with a wetter summer and a drier winter.
Replied on 04/19/2011. Most dogs have their first heat cycle at about 6 to 9 months, so I assume you mean months in your question not years. Female dogs are in heat for a period of 3 to 4 weeks.
Female dogs don't have period, they go through a heat cycle, called estrus, every six months. She will have proestrus, or a bleeding cycle, before her true heat cycle during which she is very receptive to the advances of male dogs. This heat cycle lasts for several days up to three or four weeks.