On Sunday, the city reached 100 degrees Fahrenheit for the first time since record-keeping began in the 1890s. For 135 years, Tampa had remained one of the largest U.S. cities never to hit triple digits.

An air temperature of 100 degrees F was recorded for the first time since record-keeping began in 1890. Here's why that might be surprising.

The thermometer at Tampa International Airport topped out at 95 on Monday afternoon, below the 100 degrees it reached on Sunday, which was the highest temperature recorded in Tampa since weather record-keeping began in 1890.