Station: Monticello
County: Jefferson
COOP ID Number: 085879
1991-2020 Temperature Normals
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Max | 62.7 | 67.1 | 73.3 | 79.1 | 85.7 | 89.6 | 90.7 | 90.1 | 87.2 | 80.3 | 71.4 | 65.1 | 78.5 |
| Mean | 51.5 | 54.8 | 60.7 | 66.5 | 73.4 | 79.1 | 80.9 | 80.5 | 77.2 | 68.6 | 59.4 | 53.7 | 67.2 |
| Min | 40.3 | 42.5 | 48.1 | 53.9 | 61.1 | 68.6 | 71.0 | 70.9 | 67.2 | 56.9 | 47.5 | 42.4 | 55.9 |
1991-2020 Precipitation Normals
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| Total | 4.81 | 4.01 | 5.29 | 4.12 | 3.82 | 7.62 | 7.49 | 7.53 | 5.46 | 3.31 | 2.79 | 3.68 | 59.93 |
1991-2020 Degree Days
(base above 65)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |
| HDD | 426 | 295 | 177 | 61 | 9 | 0 | 0 | 0 | 1 | 48 | 205 | 360 | 1581 |
| CDD | 8 | 9 | 44 | 106 | 269 | 423 | 491 | 480 | 367 | 159 | 38 | 12 | 2406 |
