Original weather data

Weather insights

Reports built from WeatherPerch forecast and climate data, with the method and limitations shown alongside the conclusion.

Planning tool

Turn a plan into a weather request

Describe an activity, place, and timing in everyday language, then review the structured request before using it.

Updates continuously

Weather anomaly index

A live, weekly-scoped z-score ranking of the most statistically unusual rain, temperature-swing, and wind signals across every WeatherPerch-tracked location — computed from real trailing data, not written prose.

Forecast revisions and confidence signals

How forecasts change over time and, once enough matched data exists, how closely they track observed weather.

Weather volatility index

Which tracked locations see the widest day-to-day swings in temperature, rainfall, and wind, ranked on one comparable scale.

Global weather extremes

This week's hottest, coldest, wettest, and windiest tracked locations, computed daily with a CSV export.

What language does the world search weather in?

Our own Search Console data broken down by query language — real multilingual demand no public tool can see.

US cities ranked for September running weather

A transparent climate-normal ranking using the same activity thresholds shown on live running pages.

Methodology and data sources

How forecasts, official alerts, climate normals, and decision signals are handled.

Explore running weather by city →