to which will i refer if i want to know Japan has snow?

Does the fact that Japan has hosted two different winter olympics,

1972 in Sapporo and
1998 in Nagano tell you something about your question ?

Here is a site on climate in Japan.

http://gojapan.about.com/cs/weather/a/climateinjapan.htm

If you want to know if Japan has snow, the best source of information would be weather forecasts or climate data. Here's how you can find out:

1. Weather Forecast Websites: Visit reputable weather forecast websites such as Weather.com, AccuWeather.com, or BBC Weather. Enter the name of the specific location in Japan you are interested in, and check the current weather conditions or the forecast. These websites usually provide information about the temperature, precipitation, and snowfall levels.

2. Climate Data Websites: Another reliable source is climate data websites, such as World Weather Online, Climate Data, or NOAA National Centers for Environmental Information. These websites offer historical weather data for various locations around the world, including Japan. You can access historical records of snowfall patterns and average snow depth for specific regions or cities in Japan.

3. Japan's Meteorological Agency: The Japan Meteorological Agency (JMA) is the authoritative source for weather and climate information in Japan. You can visit their official website (www.jma.go.jp/jma) and navigate to the "Climate" or "Weather" section to find relevant information about snowfall in different regions of Japan.

Remember to consider the time of year when checking for snow in Japan, as it varies across seasons and regions. Checking forecasts or historical climate data will give you the most accurate information regarding snowfall in Japan.