For homeowners, builders and engineers.
Ground snow load for your exact site.
How much snow weight to plan for at your location: a site-specific ground snow load case study built from nearby weather-station records, documented in a report for your builder, engineer or permit office.
Free to explore. $29 USD per report. No subscription.

Real station records.
A traceable result.
From a point on the map
to a clearer picture.
Find your site.
Enter an address, paste coordinates, or drop a pin. Start with the place that matters to you.
Explore the evidence.
See nearby weather stations. Use automatic filters, or adjust the station selection yourself.
Take the report with you.
Review the preview, then purchase your downloadable report with the stations and calculations included.
The number matters.
The work behind it, too.
More than an estimate on a map. A case study report that shows where the result comes from, ready to share with your project team.
- Estimated 50-year ground snow load
- Weather stations and site inputs
- Elevation regressions and filter decisions
- A downloadable PDF to keep and share
Explore first.
Decide when you’re ready.
Locate your site and review the preview.
Pay when you want the complete report.
One site. One report.
$29USD
One-time payment. No subscription.
Your downloadable PDF includes site-specific results and the supporting data behind them.
A few things
you might be wondering.
More questions? What is a ground snow load case study?
A site-specific estimate of the snow load a location should be designed for, built from nearby weather-station records and the site's elevation instead of a national map. Building officials ask for one where the map marks an area "CS" or can't be trusted, as often happens in the mountains. Read the ground snow load case study guide
What does the report include?
Your estimated 50-year ground snow load, site inputs, selected weather stations, elevation regressions, and the filtering decisions behind the result.
Do I need to know how to select weather stations?
Automatic mode applies the standard statistical filter defaults. Manual mode lets you adjust the filters and review the stations yourself.
Where can I use Nivometra?
You can explore sites in the lower 48 states and Alaska. The available station records and their suitability depend on your location. Reports can't be purchased in Colorado, Idaho, Montana, New Hampshire, Oregon, and Washington: their building codes set ground snow loads from their own state sources, so a report from us would give a number your building department is unlikely to accept. You can still explore those sites, and the workspace points you to the source your state requires.
Is this an engineering service?
Nivometra creates software-generated reference reports. It does not provide engineering services or a professional seal, and a report does not guarantee acceptance by a building official. Your project professional determines how to use the results.
