See how temperatures changed—your city and any city in the world.
Climio turns decades of reliable daily records (1990 → last week) into clear, comparable visuals. Explore seasonal shifts, spot extremes, and share concise reports that make climate trends easy to understand.

WHAT YOU CAN DO
• Find any city fast — smart suggestions, recent picks, precise map-based geocoding
• Choose your period — custom ranges 1–15 years within 1990 → ~1 week before today
• Track the trend — daily maximum temperature with start / end / delta for your range
• Same-date YoY bars — compare the exact calendar day across years (e.g., Sep 13 year over year)
• Seasonal insights — monthly averages per year, seasonal trend (°/year), total seasonal change, hottest / coldest month
• Annual view — average yearly temperature for complete calendar years
• Radial year comparison — unique circular view to spot seasonal patterns at a glance
• Extreme days — instantly surface the warmest and coldest days in your window
• Share insights — multi-page PDF with key charts and highlights, ready to share
• Make it yours — °C/°F, System/Light/Dark themes, compact and accessible design
• One-tap refresh — update city and range anytime; graceful fallbacks if data/network is briefly unavailable

HOW IT WORKS
• Measure: daily maximum temperature
• Time window: any 1–15 year span between 1990 and ~one week before today
• Seasons: meteorological convention — Spring (Mar–May), Summer (Jun–Aug), Autumn (Sep–Nov), Winter (Dec–Feb); winter spans Dec of the previous year + Jan–Feb
• Methods: seasonal trend uses linear regression slope (°/year); annual averages shown only for full calendar years

WHO IT’S FOR
Students and educators, journalists and researchers, travelers and locals — anyone curious about how temperatures are evolving, here and around the world.
WHY CLIMIO
Climio is built to raise awareness about temperature change where it matters most — where you live and where you travel. Clean visuals, honest metrics, and thoughtful defaults make climate trends understandable and shareable for everyone.

Do not use for safety-critical decisions. Your use is at your own risk.