Precipitation Events in Northern New England, USA
Douglas, E.M. and Fairbank, C.A. 2011. Is precipitation in northern New England becoming more extreme? Statistical analysis of extreme rainfall in Massachusetts, New Hampshire, and Maine and updated estimates of the 100-year storm. Journal of Hydrologic Engineering 16: 203-217.
Working with MAXP depths from 48 recording stations with long, continuous records in Maine, New Hampshire and Massachusetts (USA), the two researchers did indeed determine there was "a strong increase in the magnitude of extreme precipitation events over the last three decades," and they also determined that "the frequency of extreme rainfall events appears to be increasing." But over the much longer 51-year period of 1954-2005, they found that the trend in MAXP was "amazingly stationary." And working with seven stations having records stretching all the way back to 1893, they also found that "annual maximum precipitation in northern New England was relatively stationary up through 2005."
As is the case with almost all types of extreme meteorological phenomena that have been found to have been increasing in magnitude and frequency over the past few decades, Douglas and Fairbank discovered that when one looks still further back in time, equally extreme occurrences of the phenomena are typically found to have occurred, indicative of the fact that there is nothing unusual, unnatural or unprecedented about the recent trends in these sometimes dangerous weather events.