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 1.3.0

For iOS 13.4 and newer, we now are back to the old "wheel" style of date/time pickers for observation reports.

Ratings and Reviews

3.0 out of 5
38 Ratings

38 Ratings

ThinkingDog ,

Last update ruined the graphics (fixed) now input borked

A graphics glitch that rendered the app useless was fixed within days. Well done. It does what it’s supposed to - send station data to the servers. There are still minor improvements that could be made such as make “0” the default entry for amount.

Don’t they test this app before releasing? The glitches are awful and obvious.

cocorahs34 ,


On the iPad, when I enter a precip total then go to details to enter snow data, my precip value disappears when I go back to the first screen. Also, can’t edit input on the iPad, have to do that via the web interface. This is all new since the most recent update.
It’s certainly handy to have this app so I enter data in a timely manner, but bugs need to be addressed.

Onechunk99 ,

Easy to use and no ads!

Love this app! It is so convenient to enter daily weather data without having to login to a computer or web browser. The app provides just the things you need, in a simple user-friendly format. Thanks!

App Privacy

The developer, Steve Woodruff, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


Steve Woodruff
2.8 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, Spanish

Age Rating


  • Family Sharing

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

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