Streamflow trends over the past year at Pawcatuck River At Westerly in an interactive calendar format. View seasonal patterns on the river and see how an evolving climate has affecting streamflow levels over the past year. Click on any day to see what the streamflow was for that day, or sign up for a free account to view data for the past 104,260 days. The streamflow average over the past 10 days was 296.0 ^cfs, with a day to day variation of about 121.2^cfs.