Historical and Forecast City Specific Weather Data

We produce historical and forecast weather data for hundreds of US and Canadian cities. Historical and forecast hourly data files are updated nearly every hour of every day, while historical and forecast daily data files are updated once or twice per day. While data files are available for download on the website and by ftp, much of the data can also be viewed graphically on the website for each location. The map to the right shows the locations for which we have forecast data available. Historical data is available for the same locations, as well as some additional locations not shown with a shorter period of record.

Click here to view a CSV formatted file listing of sites currently available.

Click here to browse through the data we have available. Note that you will not be able to download any of the data files without a subscription. A summary of some of the data available is shown below.

Daily and Hourly Forecast Data

• Hourly/Daily/Monthly data formats
• Historical data available for >300 U.S. & Canadian cities
• Forecast data available for >300 U.S. & Canadian cities
• Data files are available through the website and via ftp
• Historical and forecast hourly data is updated hourly
• Historical daily data is updated each morning
• Hourly forecast data is available out to 7 days
• Daily forecast data is available out to 15 days
• Daily forecasts are updated 2x per day
• Seasonal forecast data is available out to 9 months
• Seasonal forecast data is available in both monthly and daily formats

Plus Model Output Data Files

Model data files are available for:
   • 00z, 06z, 12z, 18z GFS operational runs
   • 00z, 06z, 12z, 18z GFS ensemble means
   • 00z, 12z Canadian ensemble means
   • 00z, 12z ECMWF operational (to 10 days)
   • 00z, 12z ECMWF ensembles (to 15 days)
   • 00z, 06z, 12z, 18z NAM model
   • 00z, 06z, 12z, 18z High Resolution NAM (conus nest)
Model data files include*:
   • U.S. and Global (~8000 locations) data points
   • Forecast temperature anomalies
   • Forecast high temperature
   • Forecast low temperature
   • Forecast precipitation
   • Forecast snowfall

   *not all variables available for all models

A non-interactive sample of what our city-specific data looks like on the website is shown below.