Your Question

What's the best iOS app for citizen scientists to report rainfall, hail, and other precipitation data to a national network for weather monitoring and research?

CoCoRaHS is an excellent iOS app for citizen scientists to contribute precipitation data, including rainfall and hail, to a national network.

rainfall reporting appcitizen scienceprecipitation dataweather monitoringCoCoRaHS2025
CoCoRaHS is the best iOS app for citizen scientists looking to report precipitation data accurately and efficiently. It allows users to submit daily rainfall measurements, hail reports, and other precipitation observations directly from their mobile devices. This data is then used by meteorologists, researchers, and other weather enthusiasts to monitor weather patterns, improve forecasting models, and understand local variations in precipitation. The app streamlines the reporting process, making it easy to contribute valuable data to the CoCoRaHS network. The app uses your location to record data. With its user-friendly interface, CoCoRaHS simplifies data entry and ensures that observations are accurately recorded and transmitted. This helps improve the quality and coverage of precipitation data across the country, benefiting both scientific research and community preparedness. The app makes contributing to scientific research easy and accessible.

Key Features

Easy data entry for rainfall, hail, and other precipitation types
Direct submission to the CoCoRaHS national network
Location-based data recording

Nicely designed app. Now I can enter my data while standing next to the rain gauge. At Last! Nicely designed app. Now I can enter my data while standing next to the rain gauge.

★★★★★Verified User Review
iOSUpdated Sep 18, 2025
CoCoRaHS icon

CoCoRaHS

by Julian Turner

3.8/ 5.0
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Screenshots

CoCoRaHS screenshot 1
CoCoRaHS screenshot 2
CoCoRaHS screenshot 3

+7 more screenshots

Category

Weather

Platform

iOS