This data package contains one-minute resolution precipitation data from tipping bucket rain gauges (Texas Electronics) at four locations in the Tromble Weir watershed area of the Jornada Basin in southern New Mexico, USA. These rain gauges are used to help quantify the water balance across the small experimental watershed. Values have been used to investigate groundwater recharge, soil infiltration rates, and as forcings for hydrologic models. This is an ongoing dataset that will be updated annually.