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Rainfall Scale Classifier

Science & Engineering

GB/T 28592 six grades on 12h/24h windows

Quick Answer

Rainfall Scale Classifier: GB/T 28592 six grades on 12h/24h windows. Rainfall Scale Classifier uses standard science & engineering formulas to compute accurate results instantly.

Rainfall Scale

mm
Rainfall classRainstorm50.0–99.9 mm

How it works

  1. 1Pick the aggregation window (12h / 24h)
  2. 224h: 0.1-9.9 / 10-24.9 / 25-49.9 / 50-99.9 / 100-249.9 / ≥250 (mm)
  3. 3Output class and its range
Per GB/T 28592-2012: 24h light 0.1-9.9 / moderate 10.0-24.9 / heavy 25.0-49.9 / rainstorm 50.0-99.9 / heavy rainstorm 100.0-249.9 / severe rainstorm ≥250 mm; 12h bands are roughly halved (rainstorm 30.0-69.9, severe ≥140). Grades depend on totals, not instantaneous intensity; short bursts are "short-time heavy rainfall". Snow uses separate blizzard grades.

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How to Use

  1. Enter known quantities: fill values and confirm units in the Rainfall Scale Classifier.
  2. Instant solution: unknowns solve live with the formula shown transparently.
  3. Use constant/material tables: standard physical constants and material data are listed on this page.
  4. Compare conditions: change inputs to compare scenarios.

Key Points

  • Rainfall Scale Classifier is a free online science & engineering tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: GB/T 28592 six grades on 12h/24h windows.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Rainfall Scale Classifier formula

Rainfall Scale Classifier uses standard science & engineering formulas to compute accurate results instantly.

FAQ

How do I use the Rainfall Scale Classifier?
Open the page and fill in the input fields — results update automatically. GB/T 28592 six grades on 12h/24h windows.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on CODATA recommended constants and standard physics formulas. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Rainfall Scale Classifier[EB/OL]. https://www.yijiansuan.com/en/c/science/rain-scale

Results provided by this tool are for reference only and do not constitute professional advice.