Station: Key West Intl Airport
County: Monroe
COOP ID Number: 084570
1991-2020 Temperature Normals
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Max | 75.8 | 77.4 | 79.6 | 82.6 | 85.9 | 88.7 | 90.2 | 90.6 | 89.0 | 85.8 | 81.0 | 77.7 | 83.7 |
| Mean | 70.6 | 72.3 | 74.4 | 77.9 | 81.1 | 84.1 | 85.4 | 85.5 | 84.1 | 81.3 | 76.6 | 73.0 | 78.9 |
| Min | 65.5 | 67.1 | 69.3 | 73.1 | 76.4 | 79.4 | 80.6 | 80.5 | 79.2 | 76.8 | 72.2 | 68.3 | 74.0 |
1991-2020 Precipitation Normals
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Total | 1.83 | 1.54 | 1.53 | 2.07 | 3.12 | 4.23 | 3.63 | 5.37 | 7.24 | 5.67 | 2.05 | 2.16 | 40.44 |
1991-2020 Degree Days
(base above 65)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| HDD | 22 | 11 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 46 |
| CDD | 197 | 214 | 297 | 386 | 501 | 572 | 632 | 637 | 573 | 505 | 348 | 258 | 5119 |
