This is weather because it describes one day, rather than a general weather type over a longer time, which is what climate does.
Since polar is a climate, we know that we are talking about climates.
This is still weather, because it is talking about a short term event. Climate would have been saying that it is generally snowy, not that one specific week was snowy.
This is climate, because I stated what the average temperature was in New York, as well as a common statement about precipitation. Weather would have included a more specific day.
Since we are talking about one day that it is 70 degrees, not an average in a certain area, this is weather, not climate.
Awesome Job! You have earned your final Achievement Badge, the Climate Badge!
Just below this text, you can print the badge, cut it out, and glue it to your sash. If you need a new sash, feel free to print a new one out on the Home Page.