In the summer of 2014 at Pawtuckaway Beach at Pawtuckaway State Park in Nottingham New Hampshire, the U.S. Geological Survey (USGS) established a seasonal meteorological station (430508071091801) on the beach and a seasonal water-quality station (01073389) in Pawtuckaway Lake proximal to the swimming area. Data recorded at 15-minute intervals by the meteorological station were wind speed, wind direction, precipitation, barometric pressure, and relative humidity. Data recorded at 15-minute intervals by the water-quality station were air and water temperature, specific conductance, dissolved oxygen (DO), pH, and stage (water level), which characterized water conditions at the swimming area. In 2015 the USGS also established a stage monitoring station (430509071092201) at Burnham Marsh, which discharges into Pawtuckaway Lake near the swimming area. The dataset includes the 15-minute data from these stations for the summer seasons (June to September) from 2015 through 2017, and E. coli data collected at the beach during these periods by New Hampshire Department of Environmental Services (NHDES). Additional data provided by NHDES and included in the dataset are daily attendance records at Pawtuckaway State Park and dates that geese populations were present at the beach.