Degree Day, LLC
Degree Day provides observation-calibrated climate intelligence for infrastructure and long-lived assets, pairing a hazard-screening platform with technical advisory for engineers, utilities, developers, asset managers and governments. Its Hazard Explorer maps 21 climate and natural-hazard layers worldwide — flood, extreme heat, wind, wildfire, drought and coastal flooding — at address and portfolio level, translating projections into design criteria and resilience requirements. Methodologically it calibrates downscaled regional climate model and ERA5 reanalysis outputs against local weather-station observations to refine extreme-event probabilities. Its expert-in-the-loop approach targets infrastructure design, screening and disclosure.
Vendor methodology
Public transparency, not model quality iThe Transparency Score (0–3) estimates public methodological transparency: the degree to which the vendor's analytical approach to modeling climate and nature risk can be assessed from publicly available sources. It is explicitly not a measure of vendor quality or accuracy.
Methodology-relevant: vendor websites or external resources explain methodological details.
Methodology-relevant: a public hazard tool (21 layers) rests on a peer-reviewed method — Rasmussen (2026), multivariate ERA5 bias-correction downscaled to 1 km, benchmarked against in-situ stations with reported RMSE skill — plus documented data sources, assumptions and uncertainty; deeper parameters proprietary.
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Vendor product page for hydraulic flood modelling; describes flood-modeling service scope and outputs.Links
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