| Month | Average (°F) | Record (°F) | Average (inches) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | 75.2 | 65.0 | 86 | 41 | 1.8 |
| February | 76.9 | 66.8 | 86 | 45 | 1.5 |
| March | 79.0 | 68.8 | 88 | 47 | 1.5 |
| April | 82.1 | 72.7 | 90 | 48 | 2.1 |
| May | 85.3 | 76.0 | 94 | 63 | 3.1 |
| June | 88.2 | 79.0 | 95 | 68 | 4.2 |
| July | 89.7 | 80.3 | 96 | 69 | 3.6 |
| August | 90.0 | 80.2 | 95 | 68 | 5.4 |
| September | 88.5 | 79.0 | 95 | 69 | 7.0 |
| October | 85.2 | 76.6 | 93 | 60 | 5.7 |
| November | 80.4 | 71.9 | 89 | 49 | 2.0 |
| December | 77.1 | 67.9 | 88 | 44 | 2.2 |
| Entire year | 83.2 | 73.7 | 96 | 41 | 40.1 |
|
More Key West Weather Records
1948–2023
|
||
|---|---|---|
| Highest daily low | 88 °F | August 9, 2023 |
| Lowest daily high | 52 °F | January 10, 2010 |
| Greatest daily range (Difference of high and low) |
28 °F | February 27, 1989 |
| Difference in high temperature over two conscutive days |
22 °F | Jan 23–24, 2003 |
| Most daily precipitation | 22.8 inches | November 11, 1980 |
| Most monthly precipitation | 27.7 inches | November 1980 |
| Most yearly precipitation | 62.9 inches | 1969 |
| Earliest day ≥ 90 °F | April 25 | 1991 |
| Latest day ≥ 90 °F | October 28 | 1960 |
| Most days in a year ≥ 80 °F | 312 | 2019 |
| Most days in a year ≥ 90 °F | 102 | 2023 |
|
Key West Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 11 days | Nov 5–15, 2020 |
| Without precipitation | 48 days | Dec 25, 1989 – Feb 10, 1990 |
| High temperature ≥ 80 °F | 234 days | Mar 28 – Nov 16, 2019 |
| High temperature ≥ 90 °F | 45 days | Jul 21 – Sep 3, 1990 |
| Years | Station | Coordinates |
|---|---|---|
| 1948–2023 | Key West International Airport | location |