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Announcing our new website

We are excited to announce the upcoming launch of our new website. The new site will include a cleaner look and feel with a long-awaited spatial mapping feature. This is "Phase 1" of changes coming to the DEOS website. The site is tentatively scheduled to be released the first week of September. We hope that you'll enjoy our new site and continue to find DEOS to be the best source for real-time environmental data in Delaware.

- DEOS Team
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 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.
DEOS Data Integrated into Wheat Scab Model
Added 05/12/2015

DEOS and the Office of the Delaware State Climatologist have partnered with the Pennsylvania State Climate Office at Penn State University to integrate DEOS weather station data into a regional wheat scab risk model (Fusarium Head Blight Prediction Center) to improve the accuracy and usability of the model to Delaware's wheat growers.

Click here to access this resource.
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.