30-year climate normals

Pinellas County Climate and Weather Averages

Hottest month — August

90.6°

average daily high. The coldest month is January, averaging a low of 52.5°F.

Pinellas County gets 53.62" of precipitation a year, and 51% of it falls in Jun, Jul, Aug.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

Month	Avg high	Avg low	Precip
January	70.6°	52.5°	2.62"
February	73.3°	55.1°	2.38"
March	77.0°	59.2°	2.43"
April	81.8°	64.2°	2.57"
May	87.1°	69.8°	2.73"
June	89.6°	74.6°	8.86"
July	90.3°	75.9°	9.73"
August	90.6°	76.3°	8.83"
September	88.9°	75.2°	6.40"
October	84.2°	69.7°	2.49"
November	77.2°	60.9°	1.64"
December	72.8°	56.0°	2.94"

Rainfall by month

Pinellas County has a distinct wet season. 51% of the year's precipitation arrives in Jun, Jul, Aug.

January 2.62"

February 2.38"

March 2.43"

April 2.57"

May 2.73"

June 8.86"

July 9.73"

August 8.83"

September 6.40"

October 2.49"

November 1.64"

December 2.94"

Annual total 53.62"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 3,701

Heating degree days How much heating the climate demands 447

Approximate annual cooling cost At 15.17¢/kWh, Florida average $561

Approximate annual electric heating cost Lower where heating is gas rather than electric $24

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Pinellas County, where electricity is one line of eight.

Common questions

What is the weather like in Pinellas County?

Pinellas County averages a high of 90.6°F in August and a low of 52.5°F in January. Annual precipitation is 53.62 inches, with essentially no snow.

When is the rainy season in Pinellas County?

The wettest stretch is Jun, Jul, Aug, which accounts for 51% of the year's precipitation. That is a pronounced wet season rather than rain spread evenly through the year.

How hot does it get in Pinellas County?

The average daily high in August, the hottest month, is 90.6°F. That drives 3,701 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Pinellas County?

Effectively no. Measurable snowfall is rare in Pinellas County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station ST PETERSBURG INTL AP, FL US (USW00012873), 6.8 miles from the county centroid.
Heating and cooling degree days — NOAA, same station and period.
Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, Florida residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.