Climatic Data

Climatic design-value lookup in the format of NBC 2020 Appendix C, Division B, Table C-2 and Ontario MMAH Supplementary Standard SB-1. Province and city drop-downs output ground snow load (Ss), associated rain load (Sr), 1-in-10 and 1-in-50 hourly wind pressures, one-day and annual rain, design temperatures, and elevation. json).

The selected location is pinned on an interactive map (locally vendored Leaflet with OpenStreetMap tiles) using per-location latitude/longitude in the dataset.

Ships with a curated starter set of major locations for every province and territory, not the full ~680-location Table C-2. Values are indicative and must be confirmed against the official NBC 2020 Table C-2 or OBC SB-1 for the exact site before design. Does not perform seismic, NBC sub-classification, or load-combination calculations.

Use for preliminary site climatic-load lookups. Verify the governing values against the official code table for the specific location and edition before use in design.