About HistoricalClimate

HistoricalClimate answers one question well: what is the weather normally like in a given city at a given time of year? Monthly averages, frost dates, and all-time records — drawn from the same official NOAA sources meteorologists use, served as readable pages rather than raw CSV.

Every number on this site comes from the US National Oceanic and Atmospheric Administration (NOAA). The monthly averages are the 1991-2020 climate normals — a 30-year rolling window that NOAA re-publishes every decade. They represent what's "typical" for a place, not what the weather will be next week.

Climate normals are useful for planning a vacation, choosing when to plant a garden, deciding where to retire, or just understanding how your hometown's climate compares to somewhere else. A forecast tells you what tomorrow might be; normals tell you what a typical July looks like.

See our Data Sources page for details on where each number comes from.