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.

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.

North American Drought Monitor (NADM) indices and data include, Standard Precipitation Index (SPI), Percent of Long-term Average Precipitation and Palmer Drought Severity Index (PDSI).

The U.S. Climate Divisional Dataset is a long-term temporally and spatially complete dataset from 1895–present for the contiguous United States. 

UC San Diego Scripps Institute of Oceanography Center for Western Weather and Water Extremes (CW3E) provides observation and forecast datasets, including integrated water transport, integrated water vapor, precipitation, snow, temperature, winds and height, isotherm, meteograms, and virtual RASS.

National Weather Service (NWS) Climate Prediction Center (CPC) generates outlooks that view probabilities of above- or below-normal temperature and precipitation maps at the 6-10 Day, 8-14 Day, Week 3-4, One Month, and Three Month timescales.

The Regional Climate Centers (RCC) Applied Climate Information System (ACIS) offers interactive temperature and precipitation charts with single- or multi-station capabilities.

Precipitation data from CoCoRaHS: a non-profit, community-based network of volunteers of all ages and backgrounds working together to measure and map precipitation (rain, hail, and snow) across the U.S.

NCEI provides a variety of temperature and precipitation products available at the National and Global scale.

The NOAA NCEI Climate at a Glance (CAG) tool provides an analysis of monthly and annual temperatures for the globe and is intended for the study of climate variability and change.