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Online Climate Data Sources:

This page is intended to guide you in your search for online climate data. If you cannot find what you are looking for among the links in the table below, or have any questions or concerns, please fill out the data request form or give us a call at (434) 924-0548. 

Please contact us for information regarding the quality of the data, or the suitability of the data for your particular purpose. Many of the data acquisition sites listed are located on the National Climatic Data Center (NCDC) web page. If you prefer to explore the data in the NCDC archives on your own without the aid of our organized list below, you can go directly to the NCDC Online Climate Resources.

For more intensive data needs, please see the Southeast Regional Climate Center and their interactive ACIS data retrieval site.


Station Data:

National Climatic Data Center Station List (May require a fee, for more info see NCDC Data Access Policy)

Southeast Regional Climate Center, ACIS Web (Subscription Only)

The Weather Underground (Unofficial, privately run site, but with some useful archives of hourly and daily data for many stations)


Hourly Data:

National Climate Data Center Hourly Surface Data (May require a fee, for more info see NCDC Data Access Policy)

Automated Flood Warning System (AFWS) Hourly Precipitation


Daily Data:

National Climate Data Center Daily Surface Data (May require a fee, for more info see NCDC Data Access Policy)

DCA, IAD, BWI, Charlottesville, Hagerstown, and Martinsburg Airport Daily Surface Data, Past 5 years

Richmond, Norfolk, Salisbury, Wallops Island, and Elizabeth City Daily Surface Data, Past 5 years

Blacksburg, Lynchburg, Roanoke, Danville, and Bluefield Daily Surface Data, Past 5 Years

Chattanooga, Knoxville, and Tri-Cities Daily Surface Data, Past 5 Years


Monthly and Annual Data:

National Climate Data Center Monthly Surface Data (May require a fee, for more info see NCDC Data Access Policy)

Climatic Summaries for Virginia Stations (Includes a wide variety of summaries for precipitation and temperature climatology, including temperature, precipitation, snowfall, freeze, and degree day historical data tables)

United States Historical Climate Network (For selected Virginia stations, period of available recording often back to 19th century)


Virginia and U.S. Means and Extreme Events:

Climatic Summaries for Virginia Stations (Includes a wide variety of summaries for precipitation and temperature, including historical tables of temperature, precipitation, snowfall, freeze, and degree days)

Virginia Extremes and Records

U.S. Regional Climate Centers (Climate Summaries for all U.S. Stations, free of charge)

U.S. and World Climatology and Extreme Events (NCDC, may include fee for some products)

U.S. Comparative Climate Data (NCDC--Click on Data Tables for free access to data, including relative humidity)

U.S. Storm Events Data Base (Search for Extreme Events--Tornadoes, Hurricanes, High Winds, Hail, etc.)

U.S. Preliminary Storm Reports (Search for recent tornado, hail, and wind reports, and other extreme events)

General Virginia Climate Information (Qualitative description of Virginia's climate, with long-term statewide averages of temperature and precipitation)

Selected Snowfall Summaries for Virginia Stations

Virginia Monthly Potential Evapotranspiration (PET) and PET-Monthly and Annual Precipitation


Solar and Wind Data:

Sunrise/Sunset/Twilight and Moonrise/Moonset/Phase (U.S. Naval Observatory)

Solar Radiation Data from Solstice and NREL

Solar Radiation Data from NREL

Observed Solar Radiation Data from NREL

Wind Energy Resource Information from NREL


Marine Data:

National Buoy Data Center

Tidal and Water Level Data

Organized Weather Links


Miscellaneous Climate Data Sources:

U.S. Climate Prediction Center (Drought data, U.S. Climate Summaries, etc.)

National Oceanic And Atmospheric Administration

U.S. Air Monitoring Network (Detailed data for a few select stations)

World Meteorological Organization Data

Nineteenth Century U.S. Climate Data Set Project

UniData

Carbon Dioxide Information and Analysis Center

LDEO Climate Modeling Group (A comprehensive list of online climate data links)

List of Links to Various Types of Climate Data (Courtesy of S. Baum, Texas A&M University)

USA Climate Data (Courtesy of ~Jacob the Australian)

Kentucky State Climatology Office

Maryland State Climatology Office

Minnesota State Climatology Office

New Mexico State Climatology Office

U.S. Official Time

visits since January 20, 2000