DEOS Marquee
RSS Data Feeds Web Services (XML) 
Current Advisories

Who We Are

For over 10 years, DEOS has been providing real-time environmental conditions for Delaware and the surrounding region. Today, DEOS operates and maintains over 50 environmental monitoring platforms and brings in data from over 200 additional environmental monitoring platforms throughout our region. These data are used for a number of purposes. From forecast model initialization to emergency planning to crop water requirements, DEOS monitoring and data services are utilized across many sectors.

Popular Products

DEOS GeoBrowser
The GeoBrowser is a tool that provides users a way to access DEOS data through a geographic framework. In the GeoBrowser, you can select stations to see current conditions and access daily and monthly summaries. You can also view the latest weather radar and warnings from the National Weather Service.
DEOS Snow Conditions Page
The DEOS snow monitoring page provides real-time snow accumulation data for 18 locations across Delaware. It also has an archive of past snow events and information on how the snow measurements are taken.
DEOS Ag Environmental Data
Agriculture/Irrigation Summaries are generated for most stations in the DEOS network. Data types in this summary include reference evapotransipiration, growing degree days, soil temperature, and soil moisture.
DEOS Network Station Updates:

There are currently no station outages at this time.
Expanded Snow Monitoring
Added 12/4/14

The DEOS Snow Monitoring Network is back for the 2014-2015 snow season. Eight new stations have been added to the network this year at Port Penn, Smyrna, Dover, Frederica, Lewes, Seaford, Millsboro, and Bethany Beach. This brings the total number of stations in the snow monitoring network to 26 statewide. To see the snow totals for the most recent event, visit our current snow conditions page.
Data Requests
The preferred method for filling data requests is through our web services, which provide data in an XML neutral format. This is ideal for anyone with recurring data needs. To access our web services, go to the sign up page to get an account.

Other data requests, particularly one-time data requests, can be made via our feedback page and will be filled as time permits.

If you encounter problems using the web services, or if you have other data questions, go to our feedback page and send us a message.