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.

The Soil Climate Analysis Network (SCAN) provides soil and climate data to support natural resource assessments and conservation activities, focusing on agricultural areas of the U.S.

Selected research papers, reports, and other resources which show the current state-of-knowledge and the progress in our understanding of the variability of climate and hydrology in the Colorado River Basin and the potential impacts of future climate change.

The U.S. Seasonal Drought Outlook depicts large-scale trends based on subjectively derived probabilities guided by short- and long-range statistical and dynamical forecasts. 

Point maps and interactive maps of snow water equivalent, snow depth, and snow density from the Natural Resources Conservation Service (NRCS) Snow Telemetry (SNOTEL).

Weekly and monthly hydrological data from the North-American Land Data Assimilation System (NLDAS).

The National Weather Service's National Water Prediction Service (NWPS) provides short-term observed and climatic trends of precipitation across the lower 48 United States (CONUS), Puerto Rico, and Alaska.

A soil moisture tool for the next 2 weeks based on the National Weather Service (NWS) Global Forecast System (GFS) model.

The nClimGrid-monthly dataset is a gridded dataset derived from spatially interpolating data from the Global Historical Climatology Network (GHCN), including precipitation (monthly totals) and temperature (monthly average, minimum and maximum), from 1895 to the present.