Almanac

Historic Data

• Detailed almanac search form
• O’Hare daily summary
• O’Hare monthly summary
• O’Hare seasonal summary
• O’Hare annual summary
• Regional temp and precipitation
• Illinois temp and precipitation
• Data and records for Chicago and Rockford

Normals & Records

• Chicago daily normals
• Chicago official records
• Chicago records by date
• Record reports from O’Hare
• Chicago hourly weather history

Winters

• Chicago winters
• Chicago monthly snow amounts
• Chicago seasonal snowfall totals

Other

• Frost and planting dates
• Local holiday statistics
• Sunrise and sunset
• Moon phases
• Chicago climate plots