January-February 2017 had the 21st highest national count of 20-yr daily precipitation events for this season since 1901 (12.9% of 884 reporting stations which in turn are 90% of the original set of 987 stations). This national outcome was anchored by three regional totals at or above 20%: 25.5% in the Pacific Northwest (4th highest), 23.4% in the South (9th highest), and 20.0% in the Southwest (tied for 11th highest). Only the South showed a marginally significant upward trend through 2016 (p=93%), while the other two regions show no significant trends in this season.

There were two Billion-Dollar Disasters ( https://www.ncdc.noaa.gov/billions/events) during this season. The first one was a tornado outbreak in the South that killed 24 people, in a region that also showed the aforementioned high total of 20-yr daily extremes. The second one was due to flooding rains in California, especially in February when the dam at Lake Oroville was almost breached and the city of San Jose suffered extensive flooding that also took 5 lives. While the West overall ended up with 16.7% coverage of 20-yr daily extremes, this was "only" tied for 20th highest place, nevertheless a change from a long-term (if insignificant) downward trend.