Back to CIG Home CIG Operations Normals & Extremes Observations Outlooks Documents Rainfall & Drought Severe Weather Winter Weather Organizations CLIMATE DATA SOURCES PLEASE NOTE! Many of these products are not yet ready for public consumption, and are offered to OCS employees for "beta-testing". We encourage your feedback! Public / Free sites Some charges may apply Internal or developmental sites - do not give out URLs (but providing information from these sites is ok) Resource Files Station Locations Pulling Hourly or Higher-Resolution Data Finding Daily or Monthly Data Climate Data Sources Documenting Storm Reports FREQUENTLY ASKED QUESTIONS Overview of data sources (powerpoint) FTP link to data requests Normals & Extremes Atlas of Oklahoma Climate * In development; planned first release December 2003 Monthly and Daily Climate Normals (NCDC) * Free to .edu domain users; others will be charged a fee. See http://www.ncdc.noaa.gov/oa/documentlibrary/pricelists.html for NCDC price lists) OCS documents archive - Normals OCS normals and extremes county summaries - average of county station normals; monthly temperature and precipitation County normals - whole state, listed by temperature, precipitation, and degree days State temperature maps - annual temperature, days above/below thresholds, seasonal degree days State precipitation maps - monthly and nanual normals, annual snowfall Cooperative Observer Data Monthly Climate Calendar CLIMOCS (monthly means and extremes, by station) Additional climate products from NWS Forecast Offices Norman: http://www.srh.noaa.gov/oun/climate/ Tulsa: http://www.srh.noaa.gov/tulsa/climo.htm Amarillo: http://www.srh.noaa.gov/ama/html/climo.htm Shreveport: http://www.srh.noaa.gov/shv/climate.htm Selected Climate Change References AASC Statement (2001) NRC Review of IPCC Report (2001) John Christy's Review of the "Evidence" (2003) Soon et al. (2003) The Climatologists' Toolbox Daily Records (NCDC) Observations (Historical) NCDC publications * Free to .edu domain users; others will be charged a fee. See http://www.ncdc.noaa.gov/oa/documentlibrary/pricelists.html for NCDC price lists) Local Climatological Data Climatological Data Hourly Precipitation Data Storm Data Monthly Climatic Data for the World COOP Data / Record of Observations (B-91 forms) Other Publications OCS/CIG publications documents archive Climatological Data Local Climatological Data Storm Data Hourly Precipitation Data NCDC Normals Daily Weather Maps Climate Summaries (F6s) Norman: Oklahoma City, Wichita Falls (TX), Bethany, Clinton, Frederick, Gage, Guthrie, Hobart, Lawton, Ponca City, Stillwater Tulsa: Tulsa, Bartlesville, Muskogee, Fayetteville (AR), Highfill (AR), Fort Smith (AR), McAlester, Tulsa Riverside (Jenks) Amarillo: Amarillo, Borger, Dalhart, Guymon Shreveport: De Queen (AR), El Dorado (AR), Longview (TX), Lufkin (TX), Monroe (LA), Shreveport (LA), Texarkana (AR), Tyler (TX) Cooperative Observer Forms (B-91s from WSSRD) Oklahoma Mesonet Mesonet Climatological Data (click on Monthly and Climate) Mesonet Monthly Data Mesonet Daily Data Mesonet 5-minute observations Mesodata text table listing (PC) Mesonet Query / Daily data search engine Mesonet Climate Division Summary  Make a Mesonet Meteogram Make a "Mesotext" file Make a Mesonet "Current Weather" Map for any time Cooperative Observer Data (TD-3206+TD-3200) Timeseries - actual observations from any selected time period, station Timeseries - monthly: summarized observations for selected period, station A month in time - calendar of observations (single station) Statewide Records - 'Top-20' list for all stations, all years on a given date Surface Airways Observations Hourly Observations (NCDC) Metar Hourly observations for Tulsa (NWS) Surface Obs from Plymouth State (statewide, selected time) Meteograms & listings from Plymouth State (selected station) National Metars (OCS, 2002-present) - by request  Upper Air / Soundings University of Wyoming (1989-present) FSL RAOBS (1998-present) NCDC CARDS dataset (order) NOAA / NESDIS CLASS (satellite data) Ag Weather / Current Observations Outlooks  Seasonal & Extended Outlooks (Climate Prediction Center) CPC Probability of Exceedence forecasts (Temperature, Precipitation, Degree Days) Drought Outlook (Climate Prediction Center) Sunrise/Sunset (U.S. Naval Observatory) ENSO Outlooks (CPC) Documents OCS Data Fees (Word, PDF) Data Request Database (OCS personnel only) OCS Travel Request Database NCDC Publications, Forms, and Documents (from WSSRD)  OCS Monthly Summaries OCS Event Summaries ES-2002-01: January 28-30, 2002: Oklahoma Ice Storm ES-2002-02: The Oklahoma Drought of 2001-2002 ES-2003-01: Oklahoma Ice Storm: December 3, 2002 ES-2003-02: May 8-9, 2003 Tornadoes OCS Hazard Summaries (in development; as of May 4, 2004) Tornadoes (Gary McManus) Thunderstorms / High Winds / Hail / Lightning (Gary McManus) Floods (Derek Arndt) Winter Storms (Gary McManus) Drought (Derek Arndt) Wildfires (Mark Shafer) Extreme Temperatures / Heat Index / Wind Chill (Mark Shafer) Dam Failures (Mark Shafer) OCS Overview (Mark Shafer) OCS/Mesonet Ticker Weekly Crop Weather (Oklahoma Agricultural Statistics Service) Daily Weather Maps NCEP Charts (surface & upper air 'facsimilie charts') Consulting Meteorologists Oklahoma Metadata Mesonet Site Map (STIDs) Mesonet Site Map (long names) Oklahoma Climate Divisions NWS County Warning Areas Federal Observing Sites, Southern Region National Climate Divisions (from CDC) Oklahoma Counties Oklahoma Ecoregions (Tourism) Geodata.gov (federal e-government portal) National Atlas of the U.S. Mapmaker (USGS) Terraserver (topo and satellite maps) TopoZone.com (topo only; quite a bit faster) Weather Calculator (NWS El Paso) Norman NWS quarterly newsletter Global Hazard Reports Rainfall & Drought Rainfall & Drought Update (seasonal maps and climate division statistics) Drought Map Maker (total rainfall, soils) Recent Mesonet Rainfall (Mesonet 7-90 day rainfall totals, by station) Mesonet rainfall accumulation maps (1 to 72 hours) Water Resources Bulletin (Oklahoma Water Resources Board) Reservoir Status (Corps of Engineers) Red Flag Fire Alert (Oklahoma Dept of Agriculture, Food and Forestry) Vegetation Mapping Viewer (USGS) Vegetation Health (current and comparative / archive; NESDIS NDVI) Pro Farmer (Midwestern) Crop Tour Active fires (USDA Forest Service) National Wildland Fire Outlook (National Interagency Coordination Center) Drought Monitor (National Drought Mitigation Center) Drought Outlook (Climate Prediction Center) Standardized Precipitation Index (Western Regional Climate Center) N-day Rainfall vs. Normal Maps (Climate Prediction Center) NWS Precipitation Analysis (Southern Region HQ) Precipitation Mapping (ABRFC) RCC precip and temperature maps (HPRCC) USGS Streamflow Data (Oklahoma) Return-Period precipitation maps (OK USGS) Mesonet Rainfall vs. Flash Flood Guidance ES-2002-02: The Oklahoma Drought of 2001-2002 (OCS Event Summary) Rainfall Return-Period Maps (on request from OCS) Drought for Kids (from NDMC) Severe Weather   OCS normals and extremes tornadoes - annual number, number by county, time of day hail - number of hail days, number of events Storm Data (NCDC) * Free to .edu domain users; others will be charged a fee. See http://www.ncdc.noaa.gov/oa/documentlibrary/pricelists.html for NCDC price lists) OCS documents archive - Storm Data Storm Events Database (NCDC) Preliminary Storm Reports: Storm Prediction Center Norman WSFO Tulsa WSFO Amarillo WSFO Shreveport WSFO (Not Available) Oklahoma Tornado statistics & listings (NWS-Norman) Tornado Statistics for Oklahoma (Doug Speheger, OUN, personal pages) Corrections to the tornado database (NOAA Technical Memorandum NWS SR-209) National Weather Service archives (search engine; 2002-present) Text products issued by area offices or Storm Prediction Center Climate data and weather roundup (KOUN only) Temperature and precipitation tables Area Weather Summaries Zone and short-term forecasts and discussions Local storm reports Watches and warnings Special weather statements Public information statements Mesoscale discussions and outlooks WSR-88D (Nexrad Radar) from NCDC product list WSR-88D (Nexrad Radar) archives information from OCS 15 local-area radars + 3 mosaic products; 1998-present offline orders only Lightning Information (Vaisala / lightningstorm.com; formerly Global Atmospherics Ltd.) ES-2003-02: May 8-9, 2003 Tornadoes (OCS Event Summary) Winter Weather / Freezes   OCS Freeze and Frost maps Average date of first / last frost, freeze, or hard freeze Average frost-free period Earliest / latest freeze First / last freeze distributions (10%, 30%, 50%, 70%, 90%)  Freeze/Frost data for the U.S. (NCDC, Clim-20) Snow cover maps (NWS Hydrologic Remote Sensing Center) GoogleEarth Snow Maps (NWS Hydrologic Remote Sensing Center) ES-2002-01: January 28-30, 2002: Oklahoma Ice Storm (OCS Event Summary) ES-2003-02: Oklahoma Ice Storm: December 3, 2002 (OCS Event Summary)  Heavy Snow in Oklahoma - NWS Norman (Mike Branick) Organizations Oklahoma Climatological Survey (OCS) Oklahoma Mesonet Public pages (real-time) Premium pages (real-time) Oklahoma Wind Power Initiative (OWPI) Oklahoma Water Resources Board (OWRB) State of Oklahoma National Climatic Data Center (NCDC) American Association of State Climatologists (AASC) Southern Regional Climate Center (SRCC) Regional Climate Centers National Drought Mitigation Center (NDMC) National Oceanographic and Atmospheric Administration (NOAA) Regional Integrated Sciences and Assessments (RISA) National Weather Service (NWS) Climate Services Division  Climate Prediction Center (CPC) Storm Prediction Center (SPC) National Severe Storms Laboratory (NSSL) River Forecast Center, Tulsa (ABRFC) Norman WFO Tulsa WFO Amarillo WFO Shreveport WFO Last Updated: July 12, 2007