The Complete Guide to Measuring Rainfall with the Stratus Precision Rain Gauge
Rainfall may seem simple—rain falls, the ground gets wet—but accurate precipitation measurement is foundational to gardening, farming, education, citizen science, public safety, and weather reporting. Knowing how much rain actually fell at your location turns weather from guesswork into usable information.
This pillar guide explains how to measure rainfall correctly using the Stratus Precision Rain Gauge, why accurate measurement matters across disciplines, and how different users—from home gardeners to educators and citizen scientists—can apply rainfall data with confidence.
FLI Products also offers professional, standalone Rainfall Measurement Guides (Field Guide, Educator Guide, and Citizen Science Starter Kit). These resources are available by request—simply contact FLI Products to learn more.
Ready to measure rainfall like a pro? The Stratus® Precision Rain Gauge is NOAA-endorsed, CoCoRaHS-recommended, and Made in the USA.
Shop Stratus® Rain Gauge →What Is the Stratus Precision Rain Gauge?
The Stratus Precision Rain Gauge is a professional-style, 14-inch manual precipitation gauge designed to measure rainfall in 0.01-inch (1/100th inch) increments. Its dual-cylinder design allows it to accurately capture both light rain and heavy storm totals, with an overall capacity of approximately 11 inches.
Unlike basic garden gauges or electronics-based systems, the Stratus prioritizes clarity, durability, and repeatable measurement:
- High-resolution manual readings (0.01")
- Dual-cylinder overflow design for large storms
- UV-resistant polycarbonate construction
- Removable funnel and inner measuring tube
- Quick Connect mounting bracket for easy removal
- Suitable for rain, snow, sleet, and hail (liquid equivalent)
The Stratus is widely used by gardeners, educators, weather observers, and citizen scientists who value reliable, location-specific rainfall data.
Why Measuring Rainfall Matters
Rainfall measurement is not just about curiosity—it directly informs decisions and understanding across many fields.
Gardening, Growing & Food Production
- Decide when to water and when to wait
- Avoid overwatering and shallow root systems
- Reduce soil erosion and compaction
- Manage disease pressure related to excess moisture
- Improve consistency and yields over time
Citizen Science & Community Value
- Improve understanding of storm impacts
- Identify localized flooding or drought conditions
- Fill observational gaps between official weather stations
Public Safety & Infrastructure Awareness
- Understanding flood risk after heavy storms
- Explaining drainage or runoff issues
- Supporting community awareness during extreme weather
Education & Climate Literacy
- Scientific observation and data collection
- Weather vs. climate
- Pattern recognition and variability
- Environmental cause-and-effect relationships
How to Measure Rainfall with the Stratus Gauge
Step 1: Choose the Right Location
- Select an open area away from buildings, trees, and fences
- Avoid roof drip lines and sprinkler spray
- Keep distance from obstructions whenever possible
- Ensure the gauge opening is level
Step 2: Mount Securely
Mount the Stratus on a stable post or structure. The Quick Connect bracket allows you to remove the gauge easily for reading and cleaning while keeping the mount fixed in place. A vertical, level installation is essential for consistent results.
Step 3: Reading Rainfall
- After precipitation, remove the gauge
- Read rainfall from the inner measuring tube for precise totals
- If rainfall exceeds the tube capacity, pour water from the outer cylinder into the tube in stages and add the totals
Step 4: Measuring Snow & Ice (Liquid Equivalent)
- Remove the funnel and inner tube
- Allow frozen precipitation to collect in the outer cylinder
- Bring it indoors to melt
- Measure the liquid equivalent using the measuring tube
Step 5: Empty, Reset & Prepare
Empty the gauge after reading, rinse periodically, and reinstall it promptly so it's ready for the next event.
Turning Measurements into Meaningful Records
- Measuring at the same time each day
- Recording date, rainfall amount, and precipitation type
- Adding notes about storm intensity, wind, or runoff
- Reviewing weekly and monthly totals for patterns
FLI Products offers standalone rainfall log worksheets and guides to support long-term record keeping. These materials are available upon request.
Rainfall Measurement by User Type
Home Gardeners & Raised Beds
Use rainfall totals to guide watering decisions, avoid overwatering, and maintain healthier soil moisture levels throughout the growing season.
Homesteaders & Hobby Farmers
Track rainfall to manage planting schedules, reduce erosion, and document growing conditions across seasons.
Commercial Growers
Maintain standardized rainfall records to support operational planning, irrigation management, and crop performance evaluation.
Citizen Scientists & Weather Observers
Contribute reliable local data by measuring precipitation consistently and recording both rain and snow using liquid equivalent methods.
Schools & Education Programs
Rainfall measurement supports hands-on science learning, data literacy, and climate education through real-world observation.
Weather Enthusiasts & Journalists
Hyperlocal rainfall data provides context and accuracy when explaining storms, dry periods, or unusual weather patterns.
Understanding the Rain Gauge Landscape
- Basic tube gauges – Simple and inexpensive, but limited in precision and capacity
- Digital or electronic gauges – Convenient, but dependent on power, calibration, and placement
- Precision manual gauges – Designed for repeatable, high-resolution measurement
The Stratus Precision Rain Gauge belongs to the third category, prioritizing measurement integrity, durability, and clarity without unnecessary complexity.
Need a replacement measuring tube? Keep your Stratus gauge performing at its best with an official replacement tube — Made in the USA.
Shop Replacement Tube →Additional Resources from FLI Products
- Rainfall Measurement Field Guide
- Educator Resource Guide (standards-aligned)
- Citizen Science Rainfall Starter Kit
- Printable Rainfall Log Worksheets
These resources are available by request. Contact FLI Products to learn more or to determine which guide best fits your application.
Conclusion: Measuring Rainfall with Confidence
Whether you are growing food, teaching students, contributing to community science, or simply understanding the weather where you live, accurate rainfall measurement matters.
The Stratus Precision Rain Gauge by FLI Products provides a proven, professional-style tool for turning precipitation into reliable data—supporting better decisions, deeper understanding, and long-term insight.
For additional rainfall measurement guides and educational resources, contact FLI Products to request access.
Frequently Asked Question
Q: How do I use the Stratus rain gauge correctly?
A: The Stratus is easy to use, but proper placement and reading matter. We've created a complete rainfall measurement guide that explains best practices for rain, snow, and record keeping.
➡️ Read the Placement & Setup Guide
