This weather has a price Keeping the median Miami-Dade County home comfortable runs roughly $646 a year in heating and cooling alone. See where it lands in the monthly bill

30-year climate normals

Miami-Dade County Climate and Weather Averages

Hottest month: August

91.7°

average daily high. The coldest month is January, averaging a low of 56.8°F.

Miami-Dade County gets 56.08" of precipitation a year, and 43% 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	76.9°	56.8°	1.74"
February	79.6°	58.6°	1.96"
March	81.9°	61.1°	2.03"
April	85.1°	64.9°	2.86"
May	88.2°	69.5°	5.16"
June	90.3°	74.0°	8.82"
July	91.2°	74.9°	7.19"
August	91.7°	75.4°	8.28"
September	89.8°	74.7°	8.42"
October	87.0°	71.3°	5.25"
November	81.9°	64.3°	2.09"
December	78.8°	60.0°	2.28"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 43% falling in the wettest three months (Jun, Jul, Aug).

January 1.74"

February 1.96"

March 2.03"

April 2.86"

May 5.16"

June 8.82"

July 7.19"

August 8.28"

September 8.42"

October 5.25"

November 2.09"

December 2.28"

Annual total 56.08"

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 4,244

Heating degree days How much heating the climate demands 156

Approximate annual cooling cost At 15.03¢/kWh, Florida average $638

Approximate annual electric heating cost Lower where heating is gas rather than electric $8

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 Miami-Dade County, where electricity is one line of eight.

Common questions

What is the weather like in Miami-Dade County?

Miami-Dade County averages a high of 91.7°F in August and a low of 56.8°F in January. Annual precipitation is 56.08 inches, with essentially no snow.

When is the rainy season in Miami-Dade County?

The wettest stretch is Jun, Jul, Aug, which accounts for 43% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Miami-Dade County?

The average daily high in August, the hottest month, is 91.7°F. That drives 4,244 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Miami-Dade County?

The weather station used for Miami-Dade County, MIAMI KENDALL TAMIAMI EXEC AP, FL US, reports temperature and precipitation but not snowfall, so there is no snow normal to quote here. Precipitation that falls as snow is still counted in the 56.08 inches above, measured as melted water.

Sources

Temperature, precipitation and snowfall normals: NOAA National Centers for Environmental Information, 1991 to 2020 Monthly Climate Normals, station MIAMI KENDALL TAMIAMI EXEC AP, FL US (USW00012888), 4.9 miles from the county centroid.
Heating and cooling degree days: NOAA, same station and period.
Annual figures on this page are the sum of that station's twelve monthly normals. NOAA also publishes a separately-computed annual normal, which can differ from the monthly sum by a few percent; we use the monthly series because the month-by-month breakdown above has to come from it.
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.