More often than not, Halloween in Connecticut calls for an extra layer. Some years, a light jacket suffices, while other years demand full winter gear. For instance, in 2020, temperatures at Bradley International Airport dropped to a frigid 21°F in the morning, though they rebounded to 41°F by 6 p.m. On the other hand, there are rare warm Halloweens, such as in 2024, when temperatures soared to 84°F, the warmest on record for Hartford County since 1905.