Snow depth products produced by the SNOTEL network of over 800 automated data collection sites located in remote, high-elevation mountain watersheds in the western U.S.

The National Weather Service Climate Prediction Center produces Topsoil Moisture Monitoring maps based on United States Department of Agriculture (USDA) state reports of topsoil moisture conditions.

The Weekly Palmer Drought Index (PDI) and Palmer Hydrological Drought Index (PHDI) are estimations of the monthly PDI and PHDI on an operational weekly basis.

The Drought Risk Atlas provides historic data about drought through 2017 for weather stations across the United States that have at least 40 years of records.

Climate Engine allows users to analyze and interact with climate and earth observations for decision support related to drought, water use, agricultural, wildfire, and ecology.

The GPCC provides unrestricted access to its monthly gridded precipitation data sets for climate monitoring purposes and related research.

The Weekly Weather and Crop Bulletin (WWCB) provides a vital source of information on weather, climate, and agricultural developments worldwide, along with maps and charts appropriate for the season.

GPCC Drought Index: a standardized anomaly of precipitation and potential evapotranspiration regarding to long-term means.

The Keetch-Byram Drought Index assesses the risk of fire by representing the net effect of evapotranspiration and precipitation in producing cumulative moisture deficiency in deep duff and upper soil layers.

NCEI Find a Station tool: a tool for retrieving weather records from observing stations by entering the desired location, data set, data range, and data category.