Every morning, thousands of weather enthusiasts, farmers, and citizen scientists across America step outside to check their rain gauges, contributing vital data to our understanding of local weather patterns. But here's the frustrating reality: most consumer rain gauges are wildly inaccurate, providing readings that can be off by 20% or more. If you're serious about weather monitoring, reporting to local weather stations, or making critical irrigation decisions, you need the precision that only comes with professional-grade equipment.
Enter the Stratus Professional Rain Gauge by FLI Products—the 14-inch precision instrument that's earned national recognition for its accuracy and official endorsement from the National Oceanic and Atmospheric Administration (NOAA).
The gold standard in rainfall measurement. NOAA-endorsed, CoCoRaHS-recommended, and Made in the USA — trusted by citizen scientists and weather observers nationwide.
Shop Stratus® Rain Gauge →What Makes the Stratus Professional Rain Gauge the Gold Standard
The Stratus isn't just another rain gauge; it's a precision meteorological instrument designed to meet the exacting standards required for official weather reporting. When NOAA endorses a product, it means it has undergone rigorous testing and meets the strict accuracy requirements used by professional weather stations nationwide.
Key Features:
- NOAA Endorsed Accuracy: Meets official standards for weather station reporting
- 14-Inch Professional Height: Optimal size for accurate precipitation measurement
- Precision Graduated Markings: Easy-to-read measurements down to 0.01 inches
- UV-Resistant Construction: Built to withstand years of outdoor exposure
- Wide Collection Funnel: Maximizes collection efficiency and reduces splash-out
- Secure Mounting Design: The base attaches with 2 mounting screws and the cylinder can be easily removed
- Clear Measurement Tube: Crystal-clear visibility for accurate readings — replacement tubes available
Technical Specifications:
- Height: 14 inches (professional standard)
- Measurement Range: 0 to 11 inches of rainfall
- Accuracy: ±2% (NOAA certified)
- Materials: High-grade UV-resistant plastic
- Mounting: Mounting Bracket included with 2 screws
Why Accuracy Matters: The Science Behind Precision Rain Measurement
Accurate rainfall measurement isn't just about curiosity—it's about making informed decisions that can impact everything from agricultural yields to flood preparedness. The Stratus Professional Rain Gauge addresses three critical factors that separate amateur weather watching from professional meteorological monitoring:
1. Collection Efficiency
The Stratus features a precisely engineered funnel-to-tube ratio that maximizes collection while minimizing evaporation and splash-out.
2. Measurement Precision
With graduations accurate to 0.01 inches, the Stratus provides the level of precision required for official weather reporting.
3. Environmental Stability
The Stratus's robust construction and stable base ensure accurate readings even during severe weather events.
Step-by-Step Setup and Usage Guide
Initial Installation
- Choose Your Location: Select an open area at least 10 feet from buildings, trees, or other obstructions
- Level the Ground: Ensure the installation site is level for accurate measurements
- Install the Stake or Post: Secure a stake or post for mounting — use Stake It™ No-Dig Ground Anchor for a tool-free, no-dig installation. Made in the USA.
- Mount the Gauge: Attach the Stratus securely to the stake or post with 2 screws
- Verify Level: Use a bubble level to ensure the gauge is perfectly vertical
Daily Monitoring Routine
- Morning Reading: Check the gauge at the same time each day (typically 7 AM)
- Record Measurement: Note the rainfall amount to the nearest 0.01 inch
- Empty and Reset: Pour out collected water and return gauge to position
- Log Data: Record readings in your weather log or reporting app
Seasonal Maintenance
- Weekly Cleaning: Remove debris from the funnel and measurement tube
- Monthly Inspection: Check for cracks, wear, or measurement marking fade
- Tube Replacement: If the inner measuring tube becomes cracked or cloudy, replace it to maintain 0.01" accuracy
- Winter Storage: In freezing climates, store indoors during winter months
- Annual Calibration: Verify accuracy using known measurement standards
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 →Complete Your Outdoor Measurement Setup
Pair your Stratus Rain Gauge with Stake It™ No-Dig Ground Anchor — secure your gauge post in any ground without digging or concrete. Made in the USA.
