Earliest and Latest Days of 100° F in St. Petersburg

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in St. Petersburg, Florida history. It is based on NOAA data from the years 1892–2024.
Earliest 100 degree day in St. Petersburg?
The earliest in the year that St. Petersburg, Florida had a high temperature of at least 100 °F is July 5 which happened in 1995.
Latest 100 degree day in St. Petersburg?
The latest in the year that St. Petersburg, Florida had a high temperature of at least 100 °F is September 6 which happened in 1985.

Earliest Days ≥ 100 °F

Date Year Temperature
July 5 1995 100 °F
September 6 1985 100 °F

Latest Days ≥ 100 °F

Date Year Temperature
September 6 1985 100 °F
July 5 1995 100 °F