Photo: Ivan Curra · CC BY-SA 3.0Hardly any U.S. towns see softer January nights than South Miami
July afternoons average 90°. Precipitation is plentiful here, more than falls on 98% of U.S. towns. Since 1901–2000, the year has warmed by 2.0°, most of all in December. From November to April, highs of 76–84° make it easy to spend the day outdoors.
A year in South Miami at a glance
Each month’s typical high and low, and what it brings.
What stands out about South Miami’s climate
Compared with towns across the U.S., with South Miami’s place in Florida beside it.
What a year in South Miami feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Frost is rare
Day counts come from NOAA’s station at Miami Wso City, FL, 0.9 miles from the town’s center, at about the same height; frost dates and degree days from Hialeah, FL, 8 miles away.
The 2023 USDA map puts South Miami’s center in zone 11a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 42°. Plant labels use the zone; frost dates tell you when to plant.
90° days by month
Average days at 90° or more
About 61 inches of rain a year
June is the wettest month and January the driest. Rain falls on about 141 days a year. Snow is rare: about 0.0" in a normal year at Hialeah, FL, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in South Miami
3% of the work is heating, so air conditioning is the bigger bill. No month averages under 55°.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Hialeah, FL.
Living with South Miami’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 11a. Frost comes about 1 winter in 250, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, November and December. 0.7 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in South Miami from natural hazards, hurricanes are the largest share (52%); heat waves, cold waves, winter storms and ice storms together are 8%. Normals are averages; the hazards page covers the extremes.
Natural hazards →South Miami and its neighbors
Every town next door is within a degree of South Miami in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like South Miami’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| South Miami, FL | 59° | 90° | 61" | 0.0" |
| Galliano, LA | 46° | 90° | 63" | 0.0" |
| Texas City, TX | 47° | 90° | 54" | 0.1" |
| Gulf Shores, AL | 44° | 90° | 62" | 0.0" |
| Pascagoula, MS | 43° | 89° | 66" | 0.1" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
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°).
A bigger shift than in 90% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How South Miami compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with South Miami’s place among Florida’s.
South Miami weather by month
Highs, lows and precipitation from NOAA’s grid at South Miami’s center; snow, wet days and snow on the ground from Hialeah, FL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 76° | 59° | 2.1" | 0.0" | 8 | 0 | 62° – 72° |
| February | 78° | 61° | 2.2" | 0.0" | 7 | 0 | 63° – 76° |
| March | 81° | 64° | 2.4" | 0.0" | 7 | 0 | 66° – 78° |
| April | 84° | 67° | 3.2" | 0.0" | 7 | 0 | 72° – 80° |
| May | 87° | 72° | 5.8" | 0.0" | 10 | 0 | 76° – 82° |
| June | 89° | 75° | 9.4" | 0.0" | 18 | 0 | 80° – 85° |
| July | 90° | 76° | 6.7" | 0.0" | 18 | 0 | 82° – 84° |
| August | 91° | 76° | 8.2" | 0.0" | 19 | 0 | 82° – 85° |
| September | 89° | 75° | 8.9" | 0.0" | 19 | 0 | 81° – 84° |
| October | 86° | 72° | 7.1" | 0.0" | 14 | 0 | 77° – 82° |
| November | 82° | 66° | 3.1" | 0.0" | 9 | 0 | 70° – 78° |
| December | 78° | 62° | 2.2" | 0.0" | 8 | 0 | 60° – 77° |
| Year | 84° | 69° | 61.1" | 0.0" | 141 | 0 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 60° to 77°. August is the most reliable, staying within 3°.
Where South Miami’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at South Miami’s center.
- Snow: Hialeah, FL.
- Frost dates, heating and cooling: Hialeah, FL, 8 miles away.
- Freezing nights, 90° and 100° days: Miami Wso City, FL, 0.9 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about South Miami’s climate
What is the weather like in South Miami?
A typical July afternoon reaches 90°, a January night drops to 59°, and snow is almost unheard of. Milder January nights than all but 110 U.S. towns; hotter July afternoons than 79% of U.S. towns.
How cold does it get in South Miami in winter?
January nights average 59°. A night at 32° or below comes in only some winters (0.0 a year on average). In the coldest January of the last 30 years the month averaged 62°.
How much snow does South Miami get?
About 0.0 inches in a normal winter at Hialeah, FL, so most winters see none.
How hot does it get in South Miami?
July, with a typical high of 90° and a low of 76°. About 29 days a year reach 90° (Hialeah, FL).
When is the first and last frost in South Miami?
Most years have no frost at all: a 32° night comes in about 0% of winters at Hialeah, FL, usually in December or January.
What growing zone is South Miami in?
Zone 11a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 42°.
What is the best time of year to visit South Miami?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is South Miami getting warmer?
Yes: 1991–2020 averaged 2.0° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 90% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in South Miami.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.