Data reference · Tier B · screening reference · Generated 2026-10-07 · verify against the governing standard, equipment nameplate or manufacturer manual.

Outdoor design conditions

Browse Manual J winter and summer design temperatures by US city.

HVAC Calculator ProReference dataUpdated 2026-10-07

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PurposeOpen a specific reference page for the full table, source notes and use boundaries.
Last verified2026-10-07

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CitationHVAC Calculator Pro. (2026-10-07). Outdoor design conditions. Retrieved from https://hvaccalcpro.com/design-conditions/
Stable URLhttps://hvaccalcpro.com/design-conditions/
Version2026-10-07 · HVAC Calculator Pro reference data
RowsSaturation pressure lookup table