Stratus professional weather rain gauge — NOAA-standard clear plastic gauge with 0.25mm metric accuracy for backyard weather stations, Made in USA
Clear plastic stratus professional rain gauge with white lid and blue branding mounted on wooden post for 0.25mm precision
Clear plastic stratus professional rain gauge with blue accents and 025mm precision measurement markings
Clear plastic stratus professional rain gauge with white funnel and blue markings for 0.25mm precision rain gauge accurate measurement
Clear plastic stratus professional rain gauge with silver top and white label for 025mm precision measurement
Clear plastic stratus professional rain gauge with blue rim and white markings for accurately measuring rain with 025mm precision
Clear plastic stratus professional rain gauge with 25mm precision and blue accents mounted on a wooden post for accurate measurement
Stratus professional weather rain gauge — clear plastic metric gauge with blue markings and 0.25mm accuracy for NOAA-standard rainfall measurement, Made in USA
Stratus professional weather rain gauge — NOAA-standard clear plastic gauge with dual metric and US inch scales for backyard weather stations, Made in USA
Stratus professional weather rain gauge — NOAA-standard clear plastic gauge with 0.25mm metric accuracy for backyard weather stations, Made in USA
Clear plastic stratus professional rain gauge with white lid and blue branding mounted on wooden post for 0.25mm precision
Clear plastic stratus professional rain gauge with blue accents and 025mm precision measurement markings
Clear plastic stratus professional rain gauge with white funnel and blue markings for 0.25mm precision rain gauge accurate measurement
Clear plastic stratus professional rain gauge with silver top and white label for 025mm precision measurement
Clear plastic stratus professional rain gauge with blue rim and white markings for accurately measuring rain with 025mm precision
Clear plastic stratus professional rain gauge with 25mm precision and blue accents mounted on a wooden post for accurate measurement
Stratus professional weather rain gauge — clear plastic metric gauge with blue markings and 0.25mm accuracy for NOAA-standard rainfall measurement, Made in USA
Stratus professional weather rain gauge — NOAA-standard clear plastic gauge with dual metric and US inch scales for backyard weather stations, Made in USA
Stratus® Precision Rain Gauges

Stratus Professional Weather Rain Gauge with 0.25mm Accuracy

$59.99
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Made in USA

⛈️ Summer Storm Season Is Here — Know Exactly How Much Rain Fell

Stratus® Precision Rain Gauge — 0.25mm Accuracy | CoCoRaHS Official | Made in USA

The Stratus® is the official rain gauge of the Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) — the largest volunteer weather observer network in North America, endorsed by NOAA. This metric version measures to 0.25mm precision — ideal for international users, metric-standard weather stations, and observers who report in millimeters. When accuracy matters for irrigation scheduling, garden planning, or contributing to real weather science, this is the gauge serious observers trust.

Clear graduated tube with funnel top design maximizes rain collection. Weather-resistant construction built for year-round outdoor use. Made in USA.

Why 0.25mm accuracy matters: A standard decorative gauge estimates to the nearest millimeter or more. The Stratus reads to 0.25mm — the precision level required by CoCoRaHS and used by NOAA-endorsed observers worldwide. For irrigation scheduling, that precision changes whether you water today or skip it.

Key Specifications

  • Accuracy: 0.25mm precision (metric)
  • Design: Clear graduated inner tube with wide-mouth funnel top
  • Construction: Weather-resistant, UV-stable plastic
  • Certification: Official CoCoRaHS gauge — NOAA observer network
  • Origin: Made in USA
  • Use: Outdoor rainfall measurement for gardens, farms, and weather stations

Key Benefits

  • CoCoRaHS Official Gauge — The gauge NOAA-endorsed volunteer observers use nationwide
  • 0.25mm Metric Precision — Ideal for metric-standard weather stations and international users
  • Easy-to-Read Graduated Scale — Clear markings for quick, accurate readings at a glance
  • Wide-Mouth Funnel Top — Maximizes rain collection surface for accurate measurement
  • Weather-Resistant — Built to withstand outdoor conditions season after season
  • Made in USA — Quality American manufacturing

Professional vs. Decorative: What's the Difference?

Feature Decorative / Digital Gauge Stratus® Precision Gauge
Accuracy 1mm or estimated 0.25mm precision
CoCoRaHS approved No Yes — official gauge
NOAA observer use No Yes
Funnel collection design Rarely Yes — maximizes accuracy
Made in USA Rarely Yes
Battery required Often No — passive, always on

How to Read a Rain Gauge Accurately

Reading a rain gauge correctly matters as much as the gauge itself. The most common mistakes: reading at an angle (parallax error), not emptying after each rain event, and placing the gauge too close to trees or structures. The Stratus® graduated tube is designed to minimize parallax error — read at eye level with the bottom of the meniscus (the curved water surface) for the most accurate result.

Most vegetables need 25–50mm of water per week. Knowing your exact rainfall total tells you exactly how much supplemental irrigation your garden needs — no guessing.

Perfect For

  • CoCoRaHS volunteer weather observers using metric reporting
  • International users and metric-standard weather stations
  • Home gardeners tracking rainfall for irrigation scheduling
  • Farmers and market gardeners monitoring field conditions
  • Backyard weather station enthusiasts
  • Schools and educational weather monitoring programs

Frequently Asked Questions

What is the most accurate metric rain gauge for home use?
The Stratus® 0.25mm Precision Rain Gauge is the official CoCoRaHS gauge in metric format — trusted by NOAA-endorsed observers and the most accurate manual metric 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.

How is the Stratus different from a digital rain gauge?
Digital gauges require batteries, can malfunction in extreme temperatures, and often measure in coarser increments. The Stratus is passive (no batteries), reads to 0.25mm precision, and never loses data during a power outage or battery failure.

Learn More

Also Need a Replacement Tube?

Keep a spare on hand. The Stratus® Replacement Measuring Tube — Metric (0.25mm) is available separately. Made in USA.

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

14-Day Returns

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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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