South Miami, FL climate
South Miami has warm winters and warm summers, with plenty of rain. A typical July afternoon reaches 90°, a January night drops to 59°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in South Miami feels like
Winter
Spring
Summer
Fall
South Miami weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 76° | 59° | 2.1" | 0 | 8 | 0 | 62° – 72° |
| February | 78° | 61° | 2.2" | 0 | 7 | 0 | 63° – 76° |
| March | 81° | 64° | 2.4" | 0 | 7 | 0 | 66° – 78° |
| April | 84° | 67° | 3.2" | 0 | 7 | 0 | 72° – 80° |
| May | 87° | 72° | 5.8" | 0 | 10 | 0 | 76° – 82° |
| June | 89° | 75° | 9.4" | 0 | 18 | 0 | 80° – 85° |
| July | 90° | 76° | 6.7" | 0 | 18 | 0 | 82° – 84° |
| August | 91° | 76° | 8.2" | 0 | 19 | 0 | 82° – 85° |
| September | 89° | 75° | 8.9" | 0 | 19 | 0 | 81° – 84° |
| October | 86° | 72° | 7.1" | 0 | 14 | 0 | 77° – 82° |
| November | 82° | 66° | 3.1" | 0 | 9 | 0 | 70° – 78° |
| December | 78° | 62° | 2.2" | 0 | 8 | 0 | 60° – 77° |
| Year | 84° | 69° | 61.2" | 0.0" | 141 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in South Miami
South Miami gets 61 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 141 days a year.
A year-round growing season
Heating and cooling a home in South Miami
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In South Miami, 3% of that work is heating and 97% is cooling, so air conditioning is the bigger bill.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
South Miami and its neighbors
South Miami borders 2 towns with climate data. January nights across them vary by 1.6°. Glenvar Heights has both the coldest January nights (59°) and the hottest July afternoons (90°). South Miami’s January low is 59° and its July high 90°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How South Miami compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in South Miami averaged 2.0° warmer than the 1900s. The biggest change is in December (+2.8°). The shift is larger than in 94% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at South Miami’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 60° to 77°. August is the most reliable, staying within 3°.
Common questions about South Miami’s climate
What is the coldest month in South Miami?
January, with a typical high of 76° and a low of 59°.
What is the hottest month in South Miami?
August, with a typical high of 91° and a low of 76°. About 91 days a year reach 90°.
How much snow does South Miami get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in South Miami?
Frost is uncommon. Only 0% of years see a night at 32° or below.
What is the rainiest month in South Miami?
June, with 9.4 inches of rain and melted snow. The year totals 61 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for South Miami itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Hialeah, FL (8 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.