The Natural Resources Conservation Service (NRCS) installs, operates and maintains an extensive, automated system to collect snowpack and related climatic data in the western United States called SNOTEL (for SNOwpack TELemetry). SNOTEL sensors collect hourly data on temperature, precipitation and snow water equivalent. Data can be displayed as tables or graphs for individual stations, drainage basins ... Full description.

This website, created and maintained by the Natural Resources Conservation Service, contains an interactive map containing climate information for each state. Users can click on states and find information and data for every county in every state. Data includes daily mean temperature, frost free days, growing season, and monthly temperature and precipitation. Users may also download data from this ... Full description.

NOAA Paleoclimatology program provides six different animations of Climate Research Unit (CRU) temperature data. Data can be used to view globally mapped temperature for the time period of available data (1856 to 1997). In each case, temperature anomalies (composed to the period 1961 to 1990) are mapped (from website). Full description.

The NOAA Paleoclimatology World Data Center (WDC) Pollen Viewer is an interactive animation that allows the user to see spatial distribution changes in 50 North American pollen taxa from 21,000 years BP to present. The user can choose pollen type, request Latin or common name, display sites, reverse animation and compare images. There is also a link to the paper: Late Quaternary vegetation dynamics ... Full description.

This website, developed by the NOAA-CIRES Climate Diagnostic Center, provides a clickable map with national climate data. Users click on states and find another clickable topographic map of each state. Data within each state includes graphical representation basic climatology and monthly rankings for temperatures and precipitation. Full description.

Palynology research scientists from around the world contribute pollen data to the NOAA Paleoclimatology World Data Center (WDC). There are pollen counts, related information, and various derived data sets. Users can access or contribute data. There are several links on obtaining WDC data, other data archives, software (including Tilia and PALYHELP), and other paleoclimatology, climatology, and botany ... Full description.

This mirror site for NOAA's World Data Center (WDC) for Paleoclimatology offers Java applets on annual records of tropical systems (ARTS) and WDC data on coral, sclerosponge, ice core, plant microfossil, pollen, and tree rings. Each animation displays summary information (e.g., site name, investigator, latitude, longitude (in decimal degrees), place, altitude, the number of samples, variables, radiocarbon ... Full description.

This website contains an interactive GIS map with global temperatures, precipitation, ecosystems, population and other layers. The tool can zoom in and out, provide limited geographic information, and display a variety of climatic information. Full description.

These animations give a paleo perspective on global warming, drought, and global temperature patterns. Climate Research Unit (CRU) data from 1856-1997 are used to create six animations that show globally mapped temperature. Three other animations reconstruct climates for the last 260 years and show spatial patterns of annual temperature anomalies. There are also two drought animations and an interactive ... Full description.

This site features visual resources and supporting data that illustrate the relationship between weather and climate. Resources are divided by topic including climate resources, weather forecasting, warnings and data, and evidence for global warming. Visualizations and data sets include GIS-based animated maps, static maps, simple animations, and links to real-time stream gauge data. This site provides ... Full description.