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Climate
Statistics · City
Normal high in May in Key Biscayne
1991–2020 · 1 data point
350 of 391 · Towns of Florida
Updated Oct 22, 2026
Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, 1991–2020
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Latest value · 1991–2020
84 °F
Towns of Florida · 2020
350 of 391
Place 1 is the highest value.
Weather through the year long-term average 1991–2020 · Miami Wso City weather station, 12 km away
74°
64°
Jan
76°
66°
Feb
78°
68°
Mar
81°
71°
Apr
84°
75°
May
87°
77°
Jun
89°
80°
Jul
89°
79°
Aug
87°
78°
Sep
84°
76°
Oct
80°
71°
Nov
77°
66°
Dec
2.3
2.3
2.0
2.6
4.6
8.7
4.2
5.9
7.4
6.0
2.6
2.4
High and low, °F
Precipitation, inches
Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, 1991–2020
Ranking · Towns of Florida
2020 · Place 1 is the highest value.
| # | Territory | Normal high in May | |
|---|---|---|---|
| 1 | Crystal Springs | 91 °F | |
| 2 | Dover | 91 °F | |
| 3 | Plant City | 91 °F | |
| 4 | Valrico | 91 °F | |
| 5 | Chokoloskee | 90 °F | |
| 6 | Grove City | 90 °F | |
| 7 | North Port | 90 °F | |
| 8 | Port Charlotte | 90 °F | |
| 9 | Punta Gorda | 90 °F | |
| 10 | Ave Maria | 89 °F | |
| 11 | Bokeelia | 89 °F | |
| 12 | Cape Coral | 89 °F | |
| 13 | Captiva | 89 °F | |
| 14 | Fort Myers | 89 °F | |
| 15 | Fort Myers Beach | 89 °F | |
| 16 | Immokalee | 89 °F | |
| 17 | Matlacha | 89 °F | |
| 18 | North Fort Myers | 89 °F | |
| 19 | Pineland | 89 °F | |
| 20 | Sanibel | 89 °F | |
| 21 | St James City | 89 °F | |
| 22 | Tice | 89 °F | |
| 23 | Belle Glade | 89 °F | |
| 24 | South Bay | 89 °F | |
| 25 | Canal Point | 89 °F | |
| … | |||
| 347 | Islamorada | 84 °F | |
| 348 | Jensen Beach | 84 °F | |
| 349 | Kendall | 84 °F | |
| 350 | Key Biscayne | 84 °F | |
| 351 | Olympia Heights | 84 °F | |
| 352 | Pinecrest | 84 °F | |
| 353 | Port St Joe | 84 °F | |
| … |
Source: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, 2020
What it means
The typical daytime high in May.
How it is calculated
Average daily maximum in May at the nearest weather station with a long record: 1991–2020, or the latest ten years.
Climate
Statistics: Key Biscayne
Average daily high
82 °F
1991–2020
Average daily low
73 °F
1991–2020
Normal annual rainfall
51.0 in
1991–2020
Days at 90 °F (32 °C) or hotter
29
1991–2020
Days with 0.1 in (2.5 mm) of rain or more
76
1991–2020
Average annual temperature
78 °F
2025 · Miami-Dade County
Annual precipitation
44.9 in
2025 · Miami-Dade County
CO₂ emissions per person
13.6
2024 · United States