What weather and climate comparisons does Extreme Weather Watch offer?

Updated

Extreme Weather Watch is a site founded in 2021 that provides an easy interface for viewing historical weather records. Its comparison tools are organized into three groups: country-level comparisons, city-level comparisons, and U.S. state-level comparisons. If you want to compare climate data between places rather than look up a single location's history, these are the pages to use.

Country and regional comparisons

  • Country Comparison — compare weather and climate data between countries.
  • Country Weather Comparison — a second country-focused comparison view.
  • Countries by Cloud Cover — rank or compare countries by cloud cover.

City and metro comparisons

  • City Comparison — compare weather data between individual cities.
  • U.S. State Capital Comparison — compare the climate of U.S. state capitals.
  • 100 Largest U.S. Metros — data covering the 100 largest U.S. metropolitan areas.
  • 25 Largest Canadian Metros — data covering the 25 largest Canadian metropolitan areas.

U.S. state comparisons

  • State Comparison — general state-to-state weather comparison.
  • U.S. State All Time Highs — compare all-time record high temperatures by state.
  • U.S. State All Time Lows — compare all-time record low temperatures by state.
  • U.S. State Average Temperatures and Rain — compare average temperatures and rainfall across states.

What else the site covers

Beyond comparisons, the site indexes climate records by region:

Region Coverage
U.S. states and territories All 50 states plus American Samoa, Guam, District of Columbia, Puerto Rico
Canadian provinces and territories Alberta through Yukon, including Nunavut and Northwest Territories
Australian states and territories New South Wales through Western Australia
Other countries Austria, Bosnia and Herzegovina, China, Croatia, Cyprus, Estonia, Finland, France, Germany, Greenland, Hungary, Iceland, Ireland, Italy, Kazakhstan, Luxembourg, Netherlands, Norway, Portugal, Romania, Russia, Serbia, Slovenia, Spain, Sweden, Switzerland, United Kingdom, Uzbekistan

There is also a Convert Temperature calculator and a blog that reviews weather records broken in a given year (for example, a 2025 records roundup published January 9, 2026).

How to choose the right comparison tool

  • Comparing two countries → Country Comparison or Country Weather Comparison.
  • Comparing two cities → City Comparison.
  • Comparing U.S. states on records or averages → State Comparison, U.S. State All Time Highs/Lows, or U.S. State Average Temperatures and Rain.
  • Comparing major urban areas → 100 Largest U.S. Metros or 25 Largest Canadian Metros.
  • Comparing state capitals specifically → U.S. State Capital Comparison.

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