I want to know the answer to the following question:
What is the average rainfall in the City of Boston per year?
All the background I'm provided with is that "There is also high year-to-year variability in snowfall; for instance, the winter of 2011–12 saw only 9.3 in (23.6 cm) of accumulating snow, but the previous winter, the corresponding figure was 81.0 in (2.06 m).[d]". Is that enough to answer the question?