iPhone Screenshots


CoCoRaHS Observer for iOS is an application that lets registered volunteer Observers submit their daily precipitation reports via their mobile device. In addition, users can view past reports to ensure accuracy.

CoCoRaHS is an acronym for the Community Collaborative Rain, Hail and Snow Network. CoCoRaHS is a unique, non-profit, community-based network of volunteers of all ages and backgrounds working together to measure and map precipitation (rain, hail and snow). By using low-cost measurement tools, stressing training and education, and utilizing an interactive Web-site, their aim is to provide the highest quality data for natural resource, education and research applications. They have volunteer observers in all fifty states.

This application is provided by Steve Woodruff and Appcay Software, not CoCoRaHS. Questions, comments, and issues can be reported to us at www.appcay.com.

What's New

Version 1.2.2

- Various bug fixes related to editing saved precip reports
- Reminders about how to abandon an in-progress edit/update
- Fixed display of history to show meltedCore depth when no gaugeCatch specified
- Fixed bug related to switching between metric and english units station types

Note that CoCoRaHS Observer is designed for iPhone devices and is not supported on iPad devices!

Ratings and Reviews

4 out of 5

8 Ratings

8 Ratings

Works pretty well to report precip

DJ in NM

In general, no complaints with this app. However, recently I started having an issue on my iPad (latest iOS) where the “Submit” button covers up the precip amount. So I have to guess that I’m inputting the correct amount because I can’t actually see it after I type in the numbers.

Move Submit button


It covers the space for entering rainfall.



Doesn't work well with iPad. Display issues.


Steve Woodruff
2.4 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, Spanish
Age Rating
Rated 4+
© 2017 Steve Woodruff


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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