Stratus® Professional Precision Rain Gauge with clear outer cylinder, funnel, graduated inner measuring tube, and mounting bracket on white.
Stratus® Professional Precision Rain Gauge on white, showing its clear cylinder, measuring tube, funnel, and bracket beside a 12 PK badge.
Stratus Professional Precision Rain Gauge mounted to a wooden post beside a man recording observations, with Made in USA and 0.01-inch precision labels.
Stratus® Professional Precision Rain Gauge beside an enlarged view of the inner tube scale highlighting 0.01-inch graduated markings.
Stratus® Professional Precision Rain Gauge three-step graphic showing rainfall collection, reading the bottom of the meniscus, and recording rainfall in a notebook.
Video of the Stratus Professional Rain Gauge demonstrating features benefits and installation
Stratus® Professional Precision Rain Gauge diagram labeling its funnel, measuring tube, and mounting bracket, beside a post-mounted garden view.
Stratus® Professional Precision Rain Gauge mounted beside a vegetable garden, with smaller home-garden and farm-use scenes below.
Stratus® Professional Precision Rain Gauge centered among feature callouts for graduated readings, outdoor construction, origin, and manual measurement.
Stratus® Professional Precision Rain Gauge contents diagram labeling the clear collection tube and funnel, graduated measuring tube, and transparent mounting bracket.
Stratus® Professional Precision Rain Gauge with clear outer cylinder, funnel, graduated inner measuring tube, and mounting bracket on white.
Stratus® Professional Precision Rain Gauge on white, showing its clear cylinder, measuring tube, funnel, and bracket beside a 12 PK badge.
Stratus Professional Precision Rain Gauge mounted to a wooden post beside a man recording observations, with Made in USA and 0.01-inch precision labels.
Stratus® Professional Precision Rain Gauge beside an enlarged view of the inner tube scale highlighting 0.01-inch graduated markings.
Stratus® Professional Precision Rain Gauge three-step graphic showing rainfall collection, reading the bottom of the meniscus, and recording rainfall in a notebook.
Video of the Stratus Professional Rain Gauge demonstrating features benefits and installation
Stratus® Professional Precision Rain Gauge diagram labeling its funnel, measuring tube, and mounting bracket, beside a post-mounted garden view.
Stratus® Professional Precision Rain Gauge mounted beside a vegetable garden, with smaller home-garden and farm-use scenes below.
Stratus® Professional Precision Rain Gauge centered among feature callouts for graduated readings, outdoor construction, origin, and manual measurement.
Stratus® Professional Precision Rain Gauge contents diagram labeling the clear collection tube and funnel, graduated measuring tube, and transparent mounting bracket.
Stratus® Precision Rain Gauges

Stratus Professional Weather Rain Gauge with 0.01 Inch Accuracy CoCoRaHS Approved

A partner brand, sold by FLI Products

Made in USA

$64.99
/
Shipping calculated at checkout.
Pack Size
  • In stock, ready to ship
  • Backordered, shipping soon
  • Hundredth-inch readings: Track rainfall with clear 0.01-inch graduated markings.
  • No batteries needed: Manual collection keeps rainfall measurement simple.
  • Outdoor construction: Weather-resistant, UV-stable plastic with a clear inner tube and wide-mouth funnel.
  • Made in the USA: A practical gauge for gardens, farms and backyard weather observations.

Know how much rain reached your garden

The Stratus® Professional Precision Rain Gauge helps you track local rainfall for garden planning, irrigation decisions and regular weather records. Its imperial scale reads in hundredths of an inch.

How to read it

Place the gauge in an open area away from trees and structures. Read at eye level from the bottom of the meniscus, the curved water surface. Record the amount and empty the gauge after each reading.

Construction and uses

Clear graduated inner tube, wide-mouth funnel and weather-resistant, UV-stable plastic construction. No batteries required. Suitable for home gardens, farms, schools and weather-monitoring projects.

Frequently Asked Questions

What is the most accurate rain gauge for home use?
The Stratus® Precision Rain Gauge measures to 0.01-inch accuracy — the same standard used by CoCoRaHS volunteer observers and NOAA-endorsed weather networks. It is the most accurate manual rain gauge available for home and garden use.

Is the Stratus rain gauge CoCoRaHS approved?
Yes. The Stratus® is the official gauge of the CoCoRaHS network — the largest volunteer precipitation monitoring network in North America, supported by NOAA.

How do I read a rain gauge accurately?
Place the gauge in an open area away from trees and structures. After a rain event, read the water level at eye level, measuring from the bottom of the meniscus (the curved water surface). Empty the gauge after each reading. The Stratus graduated tube is designed to minimize parallax error for accurate at-a-glance readings.

How is the Stratus different from a digital rain gauge?
Digital gauges require batteries, can malfunction in extreme temperatures, and often measure in 0.1" increments. The Stratus is passive (no batteries), reads to 0.01" precision, and never loses data during a power outage or battery failure.

How much rain do tomatoes need per week?
Tomatoes need 1–2 inches of water per week. Knowing your exact rainfall total with a precision gauge tells you exactly how much supplemental watering your garden needs.

Guides and replacement tube

How to Read a Rain Gauge Accurately: Tom’s Step-by-Step Guide

Stratus vs. Standard Rain Gauges

Stratus guides and resources

The American-made Stratus® Replacement Measuring Tube is available separately.

Find this product online and in stores — see Where to Buy

14-Day Returns

Not happy? Request a return within 14 days of delivery.

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FAQs

What is the Stratus® Precision Rain Gauge? +
The Stratus® Precision Rain Gauge is a professional-grade rain gauge that measures rainfall to 0.01" accuracy — the same standard used by the National Weather Service and CoCoRaHS weather observers. It is designed for gardeners, farmers, weather enthusiasts, and irrigation professionals who need reliable, precise rainfall data.
How accurate is the Stratus Rain Gauge? +
The Stratus® Precision Rain Gauge measures rainfall to 0.01" (one-hundredth of an inch) accuracy — far more precise than standard household rain gauges that only measure to 0.1". This level of accuracy is the official standard for professional weather observation networks including CoCoRaHS.
Is the Stratus Rain Gauge Made in USA? +
Yes. The Stratus® Precision Rain Gauge is proudly Made in the USA.
What is CoCoRaHS and is the Stratus gauge approved for it? +
CoCoRaHS (Community Collaborative Rain, Hail and Snow Network) is a national volunteer weather observation network that collects high-quality precipitation data across the US. The Stratus® Precision Rain Gauge is the official gauge recommended by CoCoRaHS for its 0.01" measurement accuracy.
How do I read the Stratus Rain Gauge? +
The Stratus® Precision Rain Gauge features a large-diameter outer tube and a precision inner measuring tube. After rainfall, the water from the outer tube flows into the narrow inner tube, magnifying the measurement for easy, accurate reading to 0.01".
Is the Stratus Rain Gauge weather-resistant? +
Yes. The Stratus® Precision Rain Gauge is constructed from durable, UV-resistant materials designed to withstand year-round outdoor exposure including sun, rain, frost, and wind.
Can I get a replacement measuring tube for the Stratus gauge? +
Yes. Replacement measuring tubes are available separately under the Stratus® Precision Rain Gauge Measuring Tube Replacement. This allows you to replace just the inner tube if it becomes damaged without replacing the entire gauge.
Where should I mount the Stratus Rain Gauge? +
Mount the Stratus® Precision Rain Gauge in an open area away from trees, roof overhangs, and structures that could block or funnel rainfall. The gauge should be positioned so the top of the outer tube is level and unobstructed for accurate collection.
What makes the Stratus gauge better than a standard rain gauge? +
Standard rain gauges typically measure to 0.1" accuracy and use small-diameter tubes that are difficult to read precisely. The Stratus® Precision Rain Gauge uses a wide outer collection tube and a narrow inner measuring tube to magnify readings to 0.01" — 10x more precise than standard gauges.
Who uses the Stratus Precision Rain Gauge? +
The Stratus® Precision Rain Gauge is used by home gardeners, farmers, irrigation managers, weather hobbyists, and official CoCoRaHS volunteer observers who need professional-grade rainfall measurement accuracy for plant care, irrigation scheduling, and weather data collection.

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