CoAgMET Homepage

At CoAgMET, we operate a network of agricultural weather stations around the state of Colorado. The data from these stations lets us calculate Evapotranspiration (ET) values to model water use for various crops.

Services

• Station Data Selector
  Select a station and view graphs, data tables or climatology for the selected dates and timestep (daily/hourly/5 minute).
• Crop Water Use (ET)
  See crop and turf water use.
• Latest ET Reports or Select the date and regions.
  These are daily reports of water use for various crops.
• Data API
  Download data in JSON or CSV format (and with no extra junk). You can read the documentation or use the URL builder to interactively create your request.
• Maps
  Surface conditions (wind, temperature, dewpoint), precipitation (will return in April) and gust speeds at our stations around Colorado. These are the same maps as you see on the right.
• Daily Summary
  Daily overview of the whole network for yesterday or select a date.
• Station Summary
  An overview of station weather and ET data for a month.
• Daily Data
  A station's raw Weather and ET data for a month.
• Monthly Data
  View weather statistics by month for a given year.
• Growing Degree Day (GDD) plots
  Plots of Growing Degree Days (GDD) for any of our stations for the present or previous years.
• Text Message Service
  Sign up for our SMS/email message service. You will be able to customize the messages sent to your cell phone (or email address).
• Raw Data Access
  Direct access to the raw data. Select hourly or daily data from our archives.
  Be sure to check out our Data API to see if it does what you want.
• Wind Summaries
  Wind summaries for CoAgMET stations.
• 2017 Growing Season Report
  An interactive web-based report for the 2017 growing season at our 7 long-term CoAgMET sites where we monitor ET accumulations.
• Web Services  (deprecated)
  Access to a variety of data including CoAgMET. Web Services are especially useful to those who are using scripts to access data. We now have a modernized data API we would prefer you to use.
• Other Climatic Data - Colorado Climate Center
  The Colorado Climate Center maintains a database of historical climatic data for many weather stations throughout Colorado.

Meta

• About CoAgMET
  A brief history of how CoAgMET came to be.
• Station Index and Station Map
  Metadata on all of the stations in our network, and a map showing where they are across Colorado.
• Understanding Evapotranspiration
  In-depth explanation of how we calculate plant water use.
• ET Coefficients
  The coefficients we use for different crops to calculate evapotranspiration.
• Evapotranspiration Workshop March 12th, 2010
  “Using the Best Science to Estimate Consumptive Use”
• Evapotranspiration Workshop March 21st, 2012
  “New Technologies and Methods for Estimating ET”
• Station Description
  A description of a typical CoAgMET station.
• Make a donation to CoAgMET
  Choose "Atmospheric Science" in the pull-down menu at the top, and in the "comments" field at the bottom, indicate "Gift is for Colorado Climate Center - new gift fund"