7.3A
Precipitation Averages, Seasonality, Volatility and Trends in U.S. Cities
Dave Friedberg, WeatherBill Inc., San Francisco, CA
WeatherBill analyzed U.S. rainfall and rainy day data, from 200 National Weather Service Stations in 195 cities across 48 states, from the last thirty years to identify precipitation averages, seasonality, volatility and trends. Rainfall and rainy day averages were used to identify the top ten rainiest and driest cities annually and seasonally by calendar quarter. Standard deviation data was used to determine volatility, while statistically significant changes determined trends. .
Session 7, Observing and Monitoring the Urban-Coastal Environment
Wednesday, 12 September 2007, 11:00 AM-12:00 PM, Kon Tiki Ballroom
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