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Data

Report your observations online
As you collect data during the season, login to your account and enter the observation data you recorded. The sooner you enter your data, the more useful it will be for real-time phenology visualizations (coming soon). Observe
Making a phenological observation Credit: J. Weltzin
Share your existing data
If you have recorded phenological data for plants or animals in past years, or have the records of someone who has, we would very much like to include them in our national phenology database. We will be accepting these historical datasets in the near future. Please keep your existing data safe for now and contact us to let us know what you have.
Historical phenology data recorded in Alfred Hosmer's field notebook Credit: R. Primack
Get legacy (historical) datasets
Obtain phenology data from the USA-NPN database, the National Climatic Data Center, and access other datasets.
Lilac in full bloom- a phenophase recorded in many historical datasets Credit: M. Schwartz
Visualize and download contemporary USA-NPN observations
Coming soon: download data and visualization tools for contemporary observations. In the meantime, see our growing gallery of maps.
Visualization of USA-NPN observations USA-NPN observers

 

Thank you for participating in the USA-NPN!