St. Petersburg Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in St. Petersburg, Florida during each month of the year.
The average high and low temperatures are listed below monthly and annually for the Gulf coast city, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in St. Petersburg, scroll down farther. There are also monthly and yearly counts of days with cool weather.
The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.
High °F | Low °F | High °C | Low °C | |
---|---|---|---|---|
70 | 52 | January | 21 | 11 |
74 | 56 | February | 23 | 13 |
77 | 59 | March | 25 | 15 |
84 | 66 | April | 29 | 19 |
88 | 71 | May | 31 | 21 |
90 | 75 | June | 32 | 24 |
90 | 76 | July | 32 | 24 |
91 | 77 | August | 33 | 25 |
90 | 76 | September | 32 | 24 |
85 | 70 | October | 29 | 21 |
78 | 62 | November | 26 | 17 |
75 | 58 | December | 24 | 14 |
82 | 66 | Year | 28 | 19 |
High °F | Low °F | High °C | Low °C | |
---|---|---|---|---|
69 | 55 | January | 21 | 13 |
72 | 58 | February | 22 | 14 |
76 | 62 | March | 24 | 17 |
81 | 67 | April | 27 | 20 |
86 | 73 | May | 30 | 23 |
89 | 77 | June | 32 | 25 |
90 | 78 | July | 32 | 26 |
90 | 78 | August | 32 | 26 |
88 | 77 | September | 31 | 25 |
83 | 72 | October | 29 | 22 |
77 | 65 | November | 25 | 18 |
72 | 59 | December | 22 | 15 |
81 | 68 | Year | 27 | 20 |
Days of Hot Weather in St. Petersburg
The hottest temperatures at St. Petersburg are usually in the 90s Fahrenheit. It's not normal for the thermometer to rise into the 100s (over 38 °C).
The 90-degree weather often begins to show up in May and can last until October. Well over half of summer days have highs in the 90s.
70 °F 21 °C |
80 °F 27 °C |
90 °F 32 °C | |
---|---|---|---|
January | 17 | 2 | 0 |
February | 20 | 4 | 0 |
March | 26 | 12 | 0 |
April | 29 | 22 | 0 |
May | 31 | 29 | 5 |
June | 30 | 30 | 15 |
July | 31 | 31 | 17 |
August | 31 | 31 | 19 |
September | 30 | 30 | 12 |
October | 30 | 27 | 2 |
November | 27 | 10 | 0 |
December | 21 | 5 | 0 |
Year | 322 | 231 | 71 |
How Often St. Petersburg Has Cold Temperatures
A cold night in St. Petersburg is not at all chilly by most American standards. Normally only two nights a winter drop to 40 °F or less.
It's unusual for frost to occur here. An overnight low of 32 °F (0 °C) or below typically happens just once a decade.
40 °F 4 °C |
50 °F 10 °C | |
---|---|---|
January | 1 | 9 |
February | 0 | 4 |
March | 0 | 1 |
April | 0 | 0 |
May | 0 | 0 |
June | 0 | 0 |
July | 0 | 0 |
August | 0 | 0 |
September | 0 | 0 |
October | 0 | 0 |
November | 0 | 1 |
December | 0 | 4 |
Year | 2 | 18 |
References
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.