Connecticut extreme cold

Are extreme cold records common in Connecticut?

Connecticut averages about 5.8 extreme cold records a year since 2000, 44th of 51 states and territories by count. The busiest year on record was 2000 (20). Per 10,000 square miles of land, Connecticut records 289 extreme cold records since 1996, 16th of 50 states and territories by that measure.

1. 1. Maryland 1039
2. 2. New Jersey 901
3. 3. West Virginia 808
4. 4. Vermont 703
5. 5. New York 602
6. 6. Kentucky 578
7. 7. Delaware 565
8. 8. Minnesota 532
9. 9. Iowa 492
10. 10. Illinois 483
11. 16. Connecticut 289

Source: NOAA NCEI Storm Events Database, records since 1996, per 10,000 square miles of land area (Census Bureau 2024 Gazetteer; places under 1,000 square miles not ranked). Damage colours: Storm Events damage, 2025 dollars.

When is the cold season in Connecticut?

66% of its extreme cold records since 1996 fell in January and February. The busiest month is January (69 records).

Source: NOAA NCEI Storm Events Database, records by the month they began, since 1996.

Are extreme cold records becoming more frequent in Connecticut?

Connecticut's count per decade against the whole country's, and its share. NOAA recorded every event type only from 1996, so earlier decades are not comparable; the share of the national total is the fairer comparison across decades.

Source: NOAA NCEI Storm Events Database.

The most recent extreme cold records in Connecticut

Source: NOAA NCEI Storm Events Database, records through June 30, 2026; the newest months are revised by NCEI as reports arrive. Search the record at NCEI.

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