IEM Computed Daily Summary of Observations

This tool lets you download daily summaries computed from collected observations for a site or all sites in a network. For COOP networks the daily values reflect the once-daily reports. When requesting all stations, limit the date span to one year.

The definition of a day usually follows the local calendar day for each station's timezone, but some stations provide standardized local-time summaries which override computed totals.

Backend documentation

1. Choose Network


Switching networks updates available stations below.

2. Select Stations, Dates, and Variables

Stations

Date Range (inclusive)
Start Date
End Date

For all stations limit span to <= 1 year for performance.

Variables

Values of 0.0001 inches represent trace precipitation.