Quality Controlled Local Climatological Data QCLCD (v.1.3) Your Access Will Require Payment Subscription Login Updates/Differences Documentation/Decode Station Type Descriptions Frequently Asked Questions Pricing/Description LCD Serial Publication System NWS Wind Chill Chart US Climate Reference Network (CRN) Samples  Daily Summary,   ASCII  Hourly Observations,   ASCII  Hourly Remarks,   ASCII  Hourly Precipitation,   ASCII Important Notes

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Important Notes

1. The Quality Controlled Local Climatological Data product consists of hourly, daily, and monthly summaries for approximately 1600 U.S. locations. Daily Summary forms are not available for all stations.
   
2. The best product for customers requesting multi-month, multi-station capability is the CDO system: http://cdo.ncdc.noaa.gov/pls/plclimprod/poemain.accessrouter?datasetabbv=SOD (daily only) http://cdo.ncdc.noaa.gov/pls/plclimprod/poemain.accessrouter?datasetabbv=DS3505 (hourly data)
   SOD is daily; 3505 is hourly.
3. Some differences between ASOS and non-ASOS stations:
   ASOS:
   Elevation is available and will be displayed
   Fahrenheit temperature variables will be displayed in whole degrees
   Celsius temperature variables will be displayed in tenths of degrees
   Non ASOS:
   Daily summary forms are not available
   Fahrenheit and Celsius variables will be displayed in whole degrees
   Sea Level Pressure and Total Precipitation values are not available
   Other elements/values will occasionally be unavailable
4. Want to know more about ASOS and AWOS stations? Visit this FAA web site for more information.
5. ASCII comma-delimited version is provided for those who desire to import the data into other applications.
6. The data provided have been processed through automated quality control processing. First-order stations also undergo additional quality control after the end of the month.
7. Subscriptions provide access for one year from date of purchase. Subscriptions can be ordered for All Stations All Years or for a Single Station All Years. A subscription for ALL also allows downloading of ALL stations for each month in ASCII format. If you have purchased a subscription, you may access it using the Subscription Login screen.
8. ASCII format download of this data available at http://www5.ncdc.noaa.gov/ulcd for unlimited subscription customers and FREE domains.
9. Final Data loads occur on a monthly basis, usually overnight. Data gaps may exist during this time frame.