Attention: NCEI HDSS Access System (HAS) is currently unavailable. Access to the affected systems should be restored by Monday, April 20. We apologize for the inconvenience.
Cooperative Observer Network (COOP)
Original COOP Observation Forms
Daily observations provided on handwritten or computer-generated forms. These may include remarks or additional information supplied by the observer. Available one month at a time.
COOP Data with a 24-hour Lag
Electronically generated and available for more than 85% of COOP stations. Data do not include remarks and additional information supplied by the observer. Generally available within 24 hours of observation.
- FTP: 15-Minute Precipitation (3260)
- FTP: Hourly Precipitation (3240)
- FTP: NWS Cooperative Summary of the Day (3200)
- FTP: Summary of the Day, First Order Stations (3210)